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/Problem12_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:46:39,569 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:46:39,571 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:46:39,592 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:46:39,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:46:39,594 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:46:39,595 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:46:39,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:46:39,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:46:39,600 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:46:39,603 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:46:39,604 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:46:39,606 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:46:39,607 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:46:39,611 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:46:39,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:46:39,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:46:39,617 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:46:39,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:46:39,632 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:46:39,634 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:46:39,635 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:46:39,637 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 03:46:39,643 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:46:39,644 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:46:39,645 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:46:39,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:46:39,646 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 03:46:39,673 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:46:39,673 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:46:39,675 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:46:39,675 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:46:39,676 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:46:39,676 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:46:39,676 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:46:39,676 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:46:39,676 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:46:39,677 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:46:39,677 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:46:39,677 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:46:39,678 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:46:39,678 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:46:39,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:46:39,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:46:39,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:46:39,681 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:46:39,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:46:39,681 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:46:39,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:46:39,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:46:39,682 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:46:39,683 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:46:39,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:46:39,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:46:39,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:46:39,684 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:46:39,684 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:46:39,684 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:46:39,684 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:46:39,685 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:46:39,685 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:46:39,685 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:46:39,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:46:39,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:46:39,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:46:39,780 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:46:39,781 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:46:39,782 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label17_true-unreach-call.c [2018-09-19 03:46:40,164 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba92aee1/a442d786e07d43aca5558826384af003/FLAG87671d373 [2018-09-19 03:46:40,664 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:46:40,665 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label17_true-unreach-call.c [2018-09-19 03:46:40,702 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba92aee1/a442d786e07d43aca5558826384af003/FLAG87671d373 [2018-09-19 03:46:40,721 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ba92aee1/a442d786e07d43aca5558826384af003 [2018-09-19 03:46:40,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:46:40,737 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:46:40,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:46:40,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:46:40,745 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:46:40,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:46:40" (1/1) ... [2018-09-19 03:46:40,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:40, skipping insertion in model container [2018-09-19 03:46:40,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:46:40" (1/1) ... [2018-09-19 03:46:40,764 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:46:42,070 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:46:42,089 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:46:42,698 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:46:42,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42 WrapperNode [2018-09-19 03:46:42,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:46:42,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:46:42,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:46:42,942 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:46:42,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:43,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:43,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:46:43,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:46:43,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:46:43,818 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:46:43,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:43,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:43,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:43,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:44,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:44,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:44,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (1/1) ... [2018-09-19 03:46:44,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:46:44,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:46:44,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:46:44,246 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:46:44,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (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 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:46:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:46:44,319 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 03:46:44,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 03:46:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 03:46:44,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 03:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:46:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:46:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:46:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:46:54,244 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:46:54,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:46:54 BoogieIcfgContainer [2018-09-19 03:46:54,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:46:54,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:46:54,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:46:54,249 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:46:54,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:46:40" (1/3) ... [2018-09-19 03:46:54,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:46:54, skipping insertion in model container [2018-09-19 03:46:54,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:46:42" (2/3) ... [2018-09-19 03:46:54,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623a087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:46:54, skipping insertion in model container [2018-09-19 03:46:54,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:46:54" (3/3) ... [2018-09-19 03:46:54,253 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label17_true-unreach-call.c [2018-09-19 03:46:54,264 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:46:54,273 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:46:54,337 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:46:54,338 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:46:54,338 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:46:54,339 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:46:54,339 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:46:54,339 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:46:54,339 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:46:54,339 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:46:54,340 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:46:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 03:46:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 03:46:54,389 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:46:54,391 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:46:54,392 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:46:54,396 INFO L82 PathProgramCache]: Analyzing trace with hash -832809957, now seen corresponding path program 1 times [2018-09-19 03:46:54,398 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:46:54,399 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 48 with the following transitions: [2018-09-19 03:46:54,401 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2143], [2145], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 03:46:54,460 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:46:54,461 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:46:56,219 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:46:56,220 INFO L272 AbstractInterpreter]: Visited 46 different actions 46 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 03:46:56,243 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:46:56,936 INFO L232 lantSequenceWeakener]: Weakened 45 states. On average, predicates are now at 77.6% of their original sizes. [2018-09-19 03:46:56,937 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:46:57,237 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:46:57,239 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:46:57,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:46:57,239 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:46:57,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:46:57,252 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:46:57,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:46:57,256 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 03:47:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:47:18,403 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 03:47:18,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:47:18,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2018-09-19 03:47:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:47:18,462 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 03:47:18,462 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 03:47:18,479 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 42 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 03:47:18,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 03:47:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 03:47:18,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 03:47:18,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 03:47:18,698 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 47 [2018-09-19 03:47:18,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:47:18,699 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 03:47:18,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:47:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 03:47:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-19 03:47:18,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:47:18,707 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:18,707 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:47:18,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1659330344, now seen corresponding path program 1 times [2018-09-19 03:47:18,708 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:47:18,708 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2018-09-19 03:47:18,709 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2143], [2145], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:47:18,715 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:47:18,715 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:47:25,008 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:47:25,008 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:47:25,017 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:47:26,492 INFO L232 lantSequenceWeakener]: Weakened 121 states. On average, predicates are now at 76.04% of their original sizes. [2018-09-19 03:47:26,493 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:47:27,509 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:47:27,509 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:47:27,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:47:27,510 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:47:27,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:47:27,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:47:27,514 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:47:27,514 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 03:48:08,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:48:08,472 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 03:48:08,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 03:48:08,473 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 123 [2018-09-19 03:48:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:48:08,497 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 03:48:08,498 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 03:48:08,504 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 03:48:08,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 03:48:08,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 03:48:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 03:48:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 03:48:08,642 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 123 [2018-09-19 03:48:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:48:08,643 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 03:48:08,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:48:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 03:48:08,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-19 03:48:08,651 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:48:08,651 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:08,651 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:48:08,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1036646972, now seen corresponding path program 1 times [2018-09-19 03:48:08,652 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:48:08,652 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-19 03:48:08,653 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2143], [2145], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:48:08,662 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:48:08,662 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:48:14,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:48:27,638 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:48:27,639 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:48:27,674 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:48:30,122 INFO L232 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 75.66% of their original sizes. [2018-09-19 03:48:30,122 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:48:30,629 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:48:30,630 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:48:30,630 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:48:30,630 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:48:30,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:48:30,632 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:48:30,632 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:48:30,632 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 03:49:04,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:49:04,500 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 03:49:04,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:49:04,502 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2018-09-19 03:49:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:49:04,531 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 03:49:04,531 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 03:49:04,537 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 203 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 03:49:04,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 03:49:04,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 03:49:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 03:49:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 03:49:04,686 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 193 [2018-09-19 03:49:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:49:04,686 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 03:49:04,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:49:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 03:49:04,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-09-19 03:49:04,696 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:49:04,697 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:04,697 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:49:04,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1431802356, now seen corresponding path program 1 times [2018-09-19 03:49:04,697 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:49:04,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 198 with the following transitions: [2018-09-19 03:49:04,698 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2143], [2145], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:49:04,705 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:49:04,705 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:49:11,274 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:49:23,390 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:49:23,391 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:49:23,396 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:49:24,806 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.64% of their original sizes. [2018-09-19 03:49:24,807 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:49:25,382 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:49:25,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:49:25,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:49:25,383 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:49:25,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:49:25,384 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:49:25,384 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:49:25,385 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 03:50:02,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:50:02,088 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 03:50:02,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 03:50:02,089 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 197 [2018-09-19 03:50:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:50:02,113 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 03:50:02,114 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 03:50:02,118 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 03:50:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 03:50:02,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 03:50:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 03:50:02,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 03:50:02,268 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 197 [2018-09-19 03:50:02,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:50:02,269 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 03:50:02,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:50:02,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 03:50:02,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-09-19 03:50:02,276 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:50:02,276 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:02,276 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:50:02,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1953714879, now seen corresponding path program 1 times [2018-09-19 03:50:02,277 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:50:02,277 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 270 with the following transitions: [2018-09-19 03:50:02,279 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2143], [2145], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:50:02,291 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:50:02,291 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:50:09,252 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:50:24,802 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:50:24,802 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 03:50:24,812 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:50:26,787 INFO L232 lantSequenceWeakener]: Weakened 267 states. On average, predicates are now at 75.5% of their original sizes. [2018-09-19 03:50:26,788 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:50:27,568 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:50:27,569 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:50:27,569 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 03:50:27,569 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:50:27,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 03:50:27,570 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 03:50:27,570 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-19 03:50:27,570 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 16 states. Received shutdown request... [2018-09-19 03:50:48,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:50:48,330 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:50:48,335 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:50:48,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:50:48 BoogieIcfgContainer [2018-09-19 03:50:48,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:50:48,337 INFO L168 Benchmark]: Toolchain (without parser) took 247602.47 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 3.6 GB in the end (delta: -2.1 GB). Peak memory consumption was 592.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:50:48,339 INFO L168 Benchmark]: CDTParser took 0.24 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 03:50:48,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2203.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:50:48,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 875.62 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 936.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 167.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:50:48,341 INFO L168 Benchmark]: Boogie Preprocessor took 427.98 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2018-09-19 03:50:48,342 INFO L168 Benchmark]: RCFGBuilder took 9998.78 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 643.3 MB). Peak memory consumption was 643.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:50:48,342 INFO L168 Benchmark]: TraceAbstraction took 234090.32 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:50:48,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2203.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 875.62 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 936.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 167.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 427.98 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9998.78 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 643.3 MB). Peak memory consumption was 643.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234090.32 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 132]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 132). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 26 states, 16 states before enhancement), while ReachableStatesComputation was computing reachable states (3411 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 234.0s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 153.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3623 SDtfs, 20019 SDslu, 2015 SDs, 0 SdLazy, 42312 SolverSat, 5289 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 138.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 880 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 68.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.994587223052029 AbsIntWeakeningRatio, 0.12742718446601942 AbsIntAvgWeakeningVarsNumRemoved, 1070.4805825242718 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label17_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-50-48-362.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label17_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-50-48-362.csv Completed graceful shutdown