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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 23:24:23,321 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 23:24:23,323 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 23:24:23,337 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 23:24:23,337 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 23:24:23,338 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 23:24:23,339 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 23:24:23,342 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 23:24:23,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 23:24:23,346 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 23:24:23,347 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 23:24:23,347 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 23:24:23,350 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 23:24:23,351 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 23:24:23,352 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 23:24:23,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 23:24:23,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 23:24:23,357 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 23:24:23,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 23:24:23,371 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 23:24:23,372 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 23:24:23,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 23:24:23,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 23:24:23,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 23:24:23,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 23:24:23,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 23:24:23,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 23:24:23,380 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 23:24:23,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 23:24:23,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 23:24:23,381 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 23:24:23,382 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 23:24:23,382 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 23:24:23,382 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 23:24:23,383 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 23:24:23,384 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 23:24:23,384 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 23:24:23,406 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 23:24:23,406 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 23:24:23,407 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 23:24:23,407 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 23:24:23,407 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 23:24:23,407 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 23:24:23,408 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 23:24:23,408 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 23:24:23,408 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 23:24:23,408 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 23:24:23,408 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 23:24:23,409 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 23:24:23,409 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 23:24:23,409 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 23:24:23,409 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 23:24:23,410 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 23:24:23,410 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 23:24:23,410 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 23:24:23,410 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 23:24:23,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 23:24:23,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 23:24:23,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 23:24:23,411 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 23:24:23,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 23:24:23,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 23:24:23,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 23:24:23,412 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 23:24:23,412 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 23:24:23,412 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 23:24:23,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 23:24:23,413 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 23:24:23,413 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 23:24:23,413 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 23:24:23,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 23:24:23,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 23:24:23,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 23:24:23,478 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 23:24:23,478 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 23:24:23,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-09-15 23:24:23,817 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7cf536d/d253a9360c0e47e4b39fb3534ad5a1e7/FLAG6edcea33d [2018-09-15 23:24:24,156 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 23:24:24,157 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label41_true-unreach-call.c [2018-09-15 23:24:24,178 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7cf536d/d253a9360c0e47e4b39fb3534ad5a1e7/FLAG6edcea33d [2018-09-15 23:24:24,194 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7cf536d/d253a9360c0e47e4b39fb3534ad5a1e7 [2018-09-15 23:24:24,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 23:24:24,212 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 23:24:24,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 23:24:24,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 23:24:24,220 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 23:24:24,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:24:24" (1/1) ... [2018-09-15 23:24:24,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1683e0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:24, skipping insertion in model container [2018-09-15 23:24:24,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:24:24" (1/1) ... [2018-09-15 23:24:24,237 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 23:24:25,233 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:24:25,254 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 23:24:25,730 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 23:24:25,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25 WrapperNode [2018-09-15 23:24:25,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 23:24:25,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 23:24:25,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 23:24:25,962 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 23:24:25,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 23:24:26,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 23:24:26,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 23:24:26,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 23:24:26,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:26,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:27,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:27,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (1/1) ... [2018-09-15 23:24:27,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 23:24:27,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 23:24:27,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 23:24:27,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 23:24:27,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (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 [2018-09-15 23:24:27,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 23:24:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 23:24:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 23:24:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 23:24:27,203 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 23:24:27,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 23:24:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 23:24:27,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 23:24:27,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 23:24:27,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 23:24:39,677 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 23:24:39,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:24:39 BoogieIcfgContainer [2018-09-15 23:24:39,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 23:24:39,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 23:24:39,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 23:24:39,682 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 23:24:39,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:24:24" (1/3) ... [2018-09-15 23:24:39,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4f98ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:24:39, skipping insertion in model container [2018-09-15 23:24:39,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:24:25" (2/3) ... [2018-09-15 23:24:39,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4f98ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:24:39, skipping insertion in model container [2018-09-15 23:24:39,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:24:39" (3/3) ... [2018-09-15 23:24:39,686 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label41_true-unreach-call.c [2018-09-15 23:24:39,696 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 23:24:39,705 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 23:24:39,763 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 23:24:39,764 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 23:24:39,764 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 23:24:39,764 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 23:24:39,765 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 23:24:39,765 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 23:24:39,765 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 23:24:39,765 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 23:24:39,765 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 23:24:39,800 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-15 23:24:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-15 23:24:39,818 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:24:39,819 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] [2018-09-15 23:24:39,821 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:24:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -131983554, now seen corresponding path program 1 times [2018-09-15 23:24:39,829 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:24:39,830 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-09-15 23:24:39,833 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], [918], [926], [934], [938], [940], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-15 23:24:39,882 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:24:39,883 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:24:41,102 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:24:41,104 INFO L272 AbstractInterpreter]: Visited 40 different actions 40 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 23:24:41,156 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:24:41,863 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 76.77% of their original sizes. [2018-09-15 23:24:41,863 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:24:42,124 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:24:42,128 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:24:42,128 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 23:24:42,129 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:24:42,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 23:24:42,141 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 23:24:42,142 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:24:42,145 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-15 23:24:50,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:24:50,785 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-15 23:24:50,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 23:24:50,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2018-09-15 23:24:50,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:24:50,811 INFO L225 Difference]: With dead ends: 1642 [2018-09-15 23:24:50,811 INFO L226 Difference]: Without dead ends: 1036 [2018-09-15 23:24:50,820 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 23:24:50,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-15 23:24:50,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-15 23:24:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-15 23:24:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-15 23:24:50,936 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 41 [2018-09-15 23:24:50,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:24:50,937 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-15 23:24:50,937 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 23:24:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-15 23:24:50,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-09-15 23:24:50,944 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:24:50,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:24:50,945 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:24:50,945 INFO L82 PathProgramCache]: Analyzing trace with hash 360338025, now seen corresponding path program 1 times [2018-09-15 23:24:50,945 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:24:50,946 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2018-09-15 23:24:50,946 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], [918], [926], [934], [938], [940], [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] [2018-09-15 23:24:50,953 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:24:50,953 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:24:58,937 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:25:05,951 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:25:05,951 INFO L272 AbstractInterpreter]: Visited 82 different actions 157 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:25:05,973 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:25:12,583 INFO L232 lantSequenceWeakener]: Weakened 113 states. On average, predicates are now at 75.7% of their original sizes. [2018-09-15 23:25:12,584 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:25:12,817 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:25:12,818 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:25:12,818 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:25:12,818 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:25:12,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:25:12,820 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:25:12,820 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:25:12,820 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 11 states. [2018-09-15 23:25:25,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:25:25,333 INFO L93 Difference]: Finished difference Result 2502 states and 4301 transitions. [2018-09-15 23:25:25,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 23:25:25,339 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 116 [2018-09-15 23:25:25,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:25:25,350 INFO L225 Difference]: With dead ends: 2502 [2018-09-15 23:25:25,350 INFO L226 Difference]: Without dead ends: 1908 [2018-09-15 23:25:25,354 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 23:25:25,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1908 states. [2018-09-15 23:25:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1908 to 1905. [2018-09-15 23:25:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2018-09-15 23:25:25,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2402 transitions. [2018-09-15 23:25:25,419 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2402 transitions. Word has length 116 [2018-09-15 23:25:25,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:25:25,420 INFO L480 AbstractCegarLoop]: Abstraction has 1905 states and 2402 transitions. [2018-09-15 23:25:25,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:25:25,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2402 transitions. [2018-09-15 23:25:25,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-15 23:25:25,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:25:25,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 23:25:25,424 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:25:25,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1732233903, now seen corresponding path program 1 times [2018-09-15 23:25:25,425 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:25:25,425 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-15 23:25:25,426 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], [918], [926], [934], [938], [940], [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] [2018-09-15 23:25:25,431 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:25:25,431 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:25:29,528 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:25:38,561 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:25:38,562 INFO L272 AbstractInterpreter]: Visited 95 different actions 184 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:25:38,590 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:25:48,750 INFO L232 lantSequenceWeakener]: Weakened 126 states. On average, predicates are now at 75.63% of their original sizes. [2018-09-15 23:25:48,750 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:25:48,899 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:25:48,900 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:25:48,900 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 23:25:48,900 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:25:48,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 23:25:48,901 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 23:25:48,901 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 23:25:48,901 INFO L87 Difference]: Start difference. First operand 1905 states and 2402 transitions. Second operand 11 states. [2018-09-15 23:26:04,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:26:04,295 INFO L93 Difference]: Finished difference Result 2938 states and 4330 transitions. [2018-09-15 23:26:04,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 23:26:04,307 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 129 [2018-09-15 23:26:04,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:26:04,319 INFO L225 Difference]: With dead ends: 2938 [2018-09-15 23:26:04,319 INFO L226 Difference]: Without dead ends: 2344 [2018-09-15 23:26:04,323 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2018-09-15 23:26:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2018-09-15 23:26:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2341. [2018-09-15 23:26:04,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2341 states. [2018-09-15 23:26:04,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2341 states to 2341 states and 2853 transitions. [2018-09-15 23:26:04,386 INFO L78 Accepts]: Start accepts. Automaton has 2341 states and 2853 transitions. Word has length 129 [2018-09-15 23:26:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:26:04,387 INFO L480 AbstractCegarLoop]: Abstraction has 2341 states and 2853 transitions. [2018-09-15 23:26:04,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 23:26:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2341 states and 2853 transitions. [2018-09-15 23:26:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-09-15 23:26:04,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:26:04,399 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 23:26:04,399 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:26:04,400 INFO L82 PathProgramCache]: Analyzing trace with hash 726473946, now seen corresponding path program 1 times [2018-09-15 23:26:04,400 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:26:04,400 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 205 with the following transitions: [2018-09-15 23:26:04,401 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], [918], [926], [934], [938], [940], [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] [2018-09-15 23:26:04,404 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:26:04,404 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:26:09,620 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:26:43,287 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:26:43,287 INFO L272 AbstractInterpreter]: Visited 96 different actions 465 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 23:26:43,292 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:26:53,454 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.45% of their original sizes. [2018-09-15 23:26:53,454 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:26:53,633 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:26:53,633 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:26:53,634 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 23:26:53,634 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:26:53,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 23:26:53,635 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 23:26:53,635 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-15 23:26:53,636 INFO L87 Difference]: Start difference. First operand 2341 states and 2853 transitions. Second operand 13 states. [2018-09-15 23:27:05,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 23:27:05,810 INFO L93 Difference]: Finished difference Result 3487 states and 4982 transitions. [2018-09-15 23:27:05,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 23:27:05,811 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 204 [2018-09-15 23:27:05,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 23:27:05,824 INFO L225 Difference]: With dead ends: 3487 [2018-09-15 23:27:05,824 INFO L226 Difference]: Without dead ends: 2893 [2018-09-15 23:27:05,827 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2018-09-15 23:27:05,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2018-09-15 23:27:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2888. [2018-09-15 23:27:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2888 states. [2018-09-15 23:27:05,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3487 transitions. [2018-09-15 23:27:05,905 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3487 transitions. Word has length 204 [2018-09-15 23:27:05,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 23:27:05,906 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 3487 transitions. [2018-09-15 23:27:05,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 23:27:05,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3487 transitions. [2018-09-15 23:27:05,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-15 23:27:05,911 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 23:27:05,911 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 23:27:05,911 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 23:27:05,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1964458857, now seen corresponding path program 1 times [2018-09-15 23:27:05,912 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 23:27:05,912 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-09-15 23:27:05,912 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], [918], [926], [934], [938], [940], [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], [1278], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-15 23:27:05,922 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 23:27:05,922 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 23:27:09,460 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 23:28:12,185 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 23:28:12,185 INFO L272 AbstractInterpreter]: Visited 96 different actions 280 times. Merged at 7 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-15 23:28:12,194 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 23:28:35,662 INFO L232 lantSequenceWeakener]: Weakened 213 states. On average, predicates are now at 75.42% of their original sizes. [2018-09-15 23:28:35,662 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 23:28:35,771 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 23:28:35,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 23:28:35,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 23:28:35,772 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 23:28:35,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 23:28:35,772 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 23:28:35,773 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 23:28:35,773 INFO L87 Difference]: Start difference. First operand 2888 states and 3487 transitions. Second operand 10 states. Received shutdown request... [2018-09-15 23:28:35,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-15 23:28:35,811 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 23:28:35,818 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 23:28:35,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:28:35 BoogieIcfgContainer [2018-09-15 23:28:35,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 23:28:35,820 INFO L168 Benchmark]: Toolchain (without parser) took 251612.35 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-15 23:28:35,821 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-15 23:28:35,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1748.33 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. [2018-09-15 23:28:35,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 294.85 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. [2018-09-15 23:28:35,824 INFO L168 Benchmark]: Boogie Preprocessor took 871.05 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 928.5 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 123.5 MB. Max. memory is 7.1 GB. [2018-09-15 23:28:35,825 INFO L168 Benchmark]: RCFGBuilder took 12548.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 463.7 MB). Peak memory consumption was 463.7 MB. Max. memory is 7.1 GB. [2018-09-15 23:28:35,826 INFO L168 Benchmark]: TraceAbstraction took 236140.68 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: -718.9 MB). Peak memory consumption was 902.7 MB. Max. memory is 7.1 GB. [2018-09-15 23:28:35,834 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1748.33 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 294.85 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 871.05 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 928.5 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 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12548.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 463.7 MB). Peak memory consumption was 463.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236140.68 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: -718.9 MB). Peak memory consumption was 902.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 110]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 110). Cancelled while BasicCegarLoop was constructing difference of abstraction (2888states) and FLOYD_HOARE automaton (currently 4 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (8 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 48.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2562 SDtfs, 8599 SDslu, 1562 SDs, 0 SdLazy, 17798 SolverSat, 2170 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 43.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 729 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2888occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 134.6s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9966419231701749 AbsIntWeakeningRatio, 0.15834522111269614 AbsIntAvgWeakeningVarsNumRemoved, 2.988587731811698 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 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/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_23-28-35-850.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label41_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_23-28-35-850.csv Completed graceful shutdown