java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label27_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:22:12,559 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:22:12,561 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:22:12,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:22:12,581 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:22:12,583 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:22:12,584 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:22:12,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:22:12,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:22:12,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:22:12,594 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:22:12,595 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:22:12,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:22:12,603 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:22:12,604 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:22:12,605 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:22:12,609 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:22:12,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:22:12,616 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:22:12,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:22:12,622 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:22:12,623 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:22:12,628 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 10:22:12,642 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:22:12,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:22:12,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:22:12,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:22:12,674 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:22:12,675 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:22:12,675 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:22:12,675 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:22:12,675 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:22:12,676 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:22:12,676 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:22:12,676 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:22:12,676 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:22:12,676 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:22:12,677 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:22:12,677 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:22:12,678 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:22:12,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:22:12,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:22:12,679 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:22:12,679 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:22:12,679 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:22:12,680 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:22:12,680 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:22:12,680 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:22:12,680 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:22:12,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:22:12,681 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:22:12,681 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:22:12,681 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:22:12,681 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:22:12,681 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:22:12,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:22:12,682 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:22:12,682 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:22:12,682 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:22:12,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:22:12,756 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:22:12,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:22:12,765 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:22:12,765 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:22:12,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label27_true-unreach-call.c [2018-09-19 10:22:13,149 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4788b776/22be89701744499dbf9836bcf6044e9a/FLAG8018b2b79 [2018-09-19 10:22:13,593 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:22:13,594 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label27_true-unreach-call.c [2018-09-19 10:22:13,632 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4788b776/22be89701744499dbf9836bcf6044e9a/FLAG8018b2b79 [2018-09-19 10:22:13,657 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4788b776/22be89701744499dbf9836bcf6044e9a [2018-09-19 10:22:13,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:22:13,675 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:22:13,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:22:13,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:22:13,685 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:22:13,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:22:13" (1/1) ... [2018-09-19 10:22:13,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc6b832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:13, skipping insertion in model container [2018-09-19 10:22:13,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:22:13" (1/1) ... [2018-09-19 10:22:13,704 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:22:15,055 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:22:15,080 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:22:15,736 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:22:16,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16 WrapperNode [2018-09-19 10:22:16,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:22:16,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:22:16,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:22:16,014 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:22:16,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:16,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:16,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:22:16,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:22:16,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:22:16,255 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:22:16,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:16,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:16,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:16,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:17,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:17,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:17,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... [2018-09-19 10:22:17,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:22:17,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:22:17,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:22:17,317 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:22:17,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:22:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:22:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:22:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 10:22:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 10:22:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 10:22:17,393 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 10:22:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:22:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:22:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:22:17,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:22:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:22:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:22:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:22:17,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:22:29,294 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:22:29,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:22:29 BoogieIcfgContainer [2018-09-19 10:22:29,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:22:29,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:22:29,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:22:29,299 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:22:29,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:22:13" (1/3) ... [2018-09-19 10:22:29,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148878bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:22:29, skipping insertion in model container [2018-09-19 10:22:29,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:22:16" (2/3) ... [2018-09-19 10:22:29,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148878bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:22:29, skipping insertion in model container [2018-09-19 10:22:29,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:22:29" (3/3) ... [2018-09-19 10:22:29,304 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label27_true-unreach-call.c [2018-09-19 10:22:29,315 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:22:29,327 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:22:29,405 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:22:29,405 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:22:29,406 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:22:29,406 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:22:29,406 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:22:29,406 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:22:29,406 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:22:29,406 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:22:29,406 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:22:29,448 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 10:22:29,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 10:22:29,457 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:22:29,458 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:22:29,460 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:22:29,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1410046180, now seen corresponding path program 1 times [2018-09-19 10:22:29,467 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:22:29,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 39 with the following transitions: [2018-09-19 10:22:29,471 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], [2071], [2073], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 10:22:29,542 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:22:29,542 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:22:31,024 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:22:31,026 INFO L272 AbstractInterpreter]: Visited 37 different actions 37 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 10:22:31,051 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:22:31,619 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 77.21% of their original sizes. [2018-09-19 10:22:31,619 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:22:31,912 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:22:31,914 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:22:31,914 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:22:31,914 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:22:31,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:22:31,927 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:22:31,928 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:22:31,930 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 10:22:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:22:56,332 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 10:22:56,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:22:56,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2018-09-19 10:22:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:22:56,382 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 10:22:56,382 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 10:22:56,408 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:22:56,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 10:22:56,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 10:22:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 10:22:56,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 10:22:56,589 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 38 [2018-09-19 10:22:56,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:22:56,590 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 10:22:56,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:22:56,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 10:22:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-09-19 10:22:56,597 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:22:56,597 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:22:56,598 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:22:56,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1294703450, now seen corresponding path program 1 times [2018-09-19 10:22:56,598 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:22:56,599 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2018-09-19 10:22:56,599 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], [2071], [2073], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:22:56,607 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:22:56,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:23:02,494 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:23:02,494 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:23:02,505 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:23:03,579 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 75.79% of their original sizes. [2018-09-19 10:23:03,580 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:23:04,421 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:23:04,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:23:04,422 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:23:04,422 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:23:04,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:23:04,423 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:23:04,424 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:23:04,424 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 12 states. [2018-09-19 10:23:42,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:23:42,153 INFO L93 Difference]: Finished difference Result 3738 states and 6520 transitions. [2018-09-19 10:23:42,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 10:23:42,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 114 [2018-09-19 10:23:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:23:42,168 INFO L225 Difference]: With dead ends: 3738 [2018-09-19 10:23:42,168 INFO L226 Difference]: Without dead ends: 2908 [2018-09-19 10:23:42,173 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 122 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2018-09-19 10:23:42,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2018-09-19 10:23:42,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2406. [2018-09-19 10:23:42,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2406 states. [2018-09-19 10:23:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3172 transitions. [2018-09-19 10:23:42,256 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3172 transitions. Word has length 114 [2018-09-19 10:23:42,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:23:42,257 INFO L480 AbstractCegarLoop]: Abstraction has 2406 states and 3172 transitions. [2018-09-19 10:23:42,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:23:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3172 transitions. [2018-09-19 10:23:42,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-09-19 10:23:42,262 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:23:42,262 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:23:42,263 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:23:42,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1341949190, now seen corresponding path program 1 times [2018-09-19 10:23:42,263 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:23:42,263 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-09-19 10:23:42,264 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], [2071], [2073], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:23:42,275 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:23:42,275 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:23:47,362 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:23:59,026 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:23:59,026 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:23:59,033 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:24:00,193 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 75.48% of their original sizes. [2018-09-19 10:24:00,193 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:24:00,652 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:24:00,653 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:24:00,653 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:24:00,653 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:24:00,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:24:00,654 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:24:00,655 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:24:00,655 INFO L87 Difference]: Start difference. First operand 2406 states and 3172 transitions. Second operand 12 states. [2018-09-19 10:24:37,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:24:37,151 INFO L93 Difference]: Finished difference Result 4011 states and 6273 transitions. [2018-09-19 10:24:37,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:24:37,153 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 184 [2018-09-19 10:24:37,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:24:37,175 INFO L225 Difference]: With dead ends: 4011 [2018-09-19 10:24:37,176 INFO L226 Difference]: Without dead ends: 3181 [2018-09-19 10:24:37,179 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 194 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:24:37,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2018-09-19 10:24:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 3176. [2018-09-19 10:24:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3176 states. [2018-09-19 10:24:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 3957 transitions. [2018-09-19 10:24:37,267 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 3957 transitions. Word has length 184 [2018-09-19 10:24:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:24:37,268 INFO L480 AbstractCegarLoop]: Abstraction has 3176 states and 3957 transitions. [2018-09-19 10:24:37,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:24:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 3957 transitions. [2018-09-19 10:24:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-09-19 10:24:37,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:24:37,272 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:24:37,273 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:24:37,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1714494002, now seen corresponding path program 1 times [2018-09-19 10:24:37,273 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:24:37,274 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-09-19 10:24:37,274 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], [2071], [2073], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:24:37,281 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:24:37,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:24:43,418 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:24:55,147 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:24:55,148 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 10:24:55,155 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:24:56,217 INFO L232 lantSequenceWeakener]: Weakened 186 states. On average, predicates are now at 75.47% of their original sizes. [2018-09-19 10:24:56,218 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:24:56,777 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:24:56,777 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:24:56,777 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:24:56,777 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:24:56,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:24:56,778 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:24:56,778 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:24:56,779 INFO L87 Difference]: Start difference. First operand 3176 states and 3957 transitions. Second operand 14 states. [2018-09-19 10:25:31,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:25:31,375 INFO L93 Difference]: Finished difference Result 4882 states and 7258 transitions. [2018-09-19 10:25:31,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:25:31,377 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 188 [2018-09-19 10:25:31,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:25:31,397 INFO L225 Difference]: With dead ends: 4882 [2018-09-19 10:25:31,397 INFO L226 Difference]: Without dead ends: 4052 [2018-09-19 10:25:31,402 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 200 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:25:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4052 states. [2018-09-19 10:25:31,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4052 to 3950. [2018-09-19 10:25:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2018-09-19 10:25:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 4771 transitions. [2018-09-19 10:25:31,507 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 4771 transitions. Word has length 188 [2018-09-19 10:25:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:25:31,508 INFO L480 AbstractCegarLoop]: Abstraction has 3950 states and 4771 transitions. [2018-09-19 10:25:31,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:25:31,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 4771 transitions. [2018-09-19 10:25:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-09-19 10:25:31,513 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:25:31,514 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:25:31,514 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:25:31,514 INFO L82 PathProgramCache]: Analyzing trace with hash 431454780, now seen corresponding path program 1 times [2018-09-19 10:25:31,515 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:25:31,515 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-09-19 10:25:31,515 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], [2071], [2073], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 10:25:31,521 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:25:31,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:25:38,495 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:25:53,740 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:25:53,741 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 10:25:53,750 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:25:55,183 INFO L232 lantSequenceWeakener]: Weakened 258 states. On average, predicates are now at 75.37% of their original sizes. [2018-09-19 10:25:55,183 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:25:55,787 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:25:55,787 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:25:55,787 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:25:55,788 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:25:55,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:25:55,788 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:25:55,789 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:25:55,789 INFO L87 Difference]: Start difference. First operand 3950 states and 4771 transitions. Second operand 14 states. Received shutdown request... [2018-09-19 10:26:25,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:26:25,594 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:26:25,601 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:26:25,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:26:25 BoogieIcfgContainer [2018-09-19 10:26:25,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:26:25,603 INFO L168 Benchmark]: Toolchain (without parser) took 251929.97 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,605 INFO L168 Benchmark]: CDTParser took 0.52 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. [2018-09-19 10:26:25,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2335.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,606 INFO L168 Benchmark]: Boogie Procedure Inliner took 241.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,607 INFO L168 Benchmark]: Boogie Preprocessor took 1061.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,608 INFO L168 Benchmark]: RCFGBuilder took 11977.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 642.0 MB). Peak memory consumption was 642.0 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,609 INFO L168 Benchmark]: TraceAbstraction took 236306.12 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.1 GB). Peak memory consumption was 712.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:26:25,614 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 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 2335.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 241.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1061.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 885.0 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11977.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 642.0 MB). Peak memory consumption was 642.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236306.12 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 2.7 GB in the end (delta: -1.1 GB). Peak memory consumption was 712.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while BasicCegarLoop was constructing difference of abstraction (3950states) and FLOYD_HOARE automaton (currently 20 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (5323 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 236.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 163.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3877 SDtfs, 15508 SDslu, 1840 SDs, 0 SdLazy, 42834 SolverSat, 4027 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 148.1s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 825 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3950occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 64.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9942745465916196 AbsIntWeakeningRatio, 0.13478818998716302 AbsIntAvgWeakeningVarsNumRemoved, 1050.635430038511 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 611 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_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-26-25-629.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label27_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-26-25-629.csv Completed graceful shutdown