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-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:31:33,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:31:33,680 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:31:33,699 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:31:33,699 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:31:33,700 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:31:33,702 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:31:33,704 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:31:33,705 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:31:33,706 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:31:33,707 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:31:33,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:31:33,709 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:31:33,710 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:31:33,711 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:31:33,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:31:33,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:31:33,715 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:31:33,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:31:33,719 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:31:33,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:31:33,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:31:33,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-14 17:31:33,733 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:31:33,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:31:33,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:31:33,750 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:31:33,751 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:31:33,751 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:31:33,751 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:31:33,751 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:31:33,752 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:31:33,752 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:31:33,752 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:31:33,752 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:31:33,753 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:31:33,753 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:31:33,754 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:31:33,754 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:31:33,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:31:33,754 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:31:33,754 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:31:33,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:31:33,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:31:33,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:31:33,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:31:33,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:31:33,756 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:31:33,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:31:33,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:31:33,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:31:33,756 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:31:33,757 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:31:33,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:31:33,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:31:33,757 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:31:33,757 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:31:33,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:31:33,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:31:33,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:31:33,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:31:33,856 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:31:33,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label26_true-unreach-call.c [2018-09-14 17:31:34,245 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbf3bf57/c6423a0bcfe74c3994525d978dd89111/FLAG2f38916a3 [2018-09-14 17:31:34,740 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:31:34,741 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label26_true-unreach-call.c [2018-09-14 17:31:34,779 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbf3bf57/c6423a0bcfe74c3994525d978dd89111/FLAG2f38916a3 [2018-09-14 17:31:34,800 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdbf3bf57/c6423a0bcfe74c3994525d978dd89111 [2018-09-14 17:31:34,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:31:34,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:31:34,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:31:34,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:31:34,830 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:31:34,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:31:34" (1/1) ... [2018-09-14 17:31:34,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6cf5b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:34, skipping insertion in model container [2018-09-14 17:31:34,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:31:34" (1/1) ... [2018-09-14 17:31:34,848 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:31:36,281 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:31:36,300 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:31:36,975 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:31:37,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37 WrapperNode [2018-09-14 17:31:37,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:31:37,350 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:31:37,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:31:37,351 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:31:37,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:37,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:37,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:31:37,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:31:37,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:31:37,624 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:31:38,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (1/1) ... [2018-09-14 17:31:38,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:31:38,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:31:38,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:31:38,829 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:31:38,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (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 [2018-09-14 17:31:38,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:31:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:31:38,910 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 17:31:38,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 17:31:38,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 17:31:38,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 17:31:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:31:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:31:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:31:38,912 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:31:38,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:31:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:31:38,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:31:38,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:31:50,994 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:31:50,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:31:50 BoogieIcfgContainer [2018-09-14 17:31:50,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:31:50,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:31:50,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:31:50,999 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:31:51,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:31:34" (1/3) ... [2018-09-14 17:31:51,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edcb8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:31:51, skipping insertion in model container [2018-09-14 17:31:51,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:31:37" (2/3) ... [2018-09-14 17:31:51,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edcb8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:31:51, skipping insertion in model container [2018-09-14 17:31:51,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:31:50" (3/3) ... [2018-09-14 17:31:51,003 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label26_true-unreach-call.c [2018-09-14 17:31:51,013 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:31:51,023 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:31:51,102 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:31:51,102 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:31:51,103 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:31:51,103 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:31:51,103 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:31:51,103 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:31:51,103 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:31:51,103 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:31:51,104 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:31:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-14 17:31:51,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-14 17:31:51,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:31:51,171 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:31:51,173 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:31:51,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1543659883, now seen corresponding path program 1 times [2018-09-14 17:31:51,181 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:31:51,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:31:51,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:31:51,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:31:51,239 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:31:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:31:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:31:51,677 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:31:51,677 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:31:51,677 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:31:51,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:31:51,703 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:31:51,704 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:31:51,709 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-09-14 17:32:06,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:32:06,198 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-09-14 17:32:06,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:32:06,203 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-09-14 17:32:06,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:32:06,244 INFO L225 Difference]: With dead ends: 3968 [2018-09-14 17:32:06,244 INFO L226 Difference]: Without dead ends: 2842 [2018-09-14 17:32:06,256 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:32:06,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-09-14 17:32:06,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-09-14 17:32:06,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-09-14 17:32:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-09-14 17:32:06,459 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 45 [2018-09-14 17:32:06,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:32:06,460 INFO L480 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-09-14 17:32:06,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:32:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-09-14 17:32:06,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-09-14 17:32:06,472 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:06,473 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:32:06,473 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:06,473 INFO L82 PathProgramCache]: Analyzing trace with hash 369865390, now seen corresponding path program 1 times [2018-09-14 17:32:06,473 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:06,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:06,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:06,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:06,479 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:06,845 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:32:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:07,067 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:07,067 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:32:07,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:07,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:32:07,069 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:32:07,069 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:32:07,070 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 5 states. [2018-09-14 17:32:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:32:26,488 INFO L93 Difference]: Finished difference Result 5673 states and 10081 transitions. [2018-09-14 17:32:26,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:32:26,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2018-09-14 17:32:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:32:26,513 INFO L225 Difference]: With dead ends: 5673 [2018-09-14 17:32:26,513 INFO L226 Difference]: Without dead ends: 3698 [2018-09-14 17:32:26,520 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:32:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2018-09-14 17:32:26,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3687. [2018-09-14 17:32:26,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3687 states. [2018-09-14 17:32:26,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5871 transitions. [2018-09-14 17:32:26,645 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5871 transitions. Word has length 115 [2018-09-14 17:32:26,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:32:26,648 INFO L480 AbstractCegarLoop]: Abstraction has 3687 states and 5871 transitions. [2018-09-14 17:32:26,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:32:26,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5871 transitions. [2018-09-14 17:32:26,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-09-14 17:32:26,658 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:26,658 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:32:26,663 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:26,664 INFO L82 PathProgramCache]: Analyzing trace with hash 241566930, now seen corresponding path program 1 times [2018-09-14 17:32:26,664 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:26,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:26,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:26,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:26,666 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:27,011 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:27,012 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:32:27,012 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:27,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:32:27,013 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:32:27,013 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:32:27,013 INFO L87 Difference]: Start difference. First operand 3687 states and 5871 transitions. Second operand 5 states. [2018-09-14 17:32:39,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:32:39,280 INFO L93 Difference]: Finished difference Result 10963 states and 17868 transitions. [2018-09-14 17:32:39,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:32:39,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2018-09-14 17:32:39,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:32:39,321 INFO L225 Difference]: With dead ends: 10963 [2018-09-14 17:32:39,321 INFO L226 Difference]: Without dead ends: 7282 [2018-09-14 17:32:39,334 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:32:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7282 states. [2018-09-14 17:32:39,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7282 to 7175. [2018-09-14 17:32:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7175 states. [2018-09-14 17:32:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7175 states to 7175 states and 10522 transitions. [2018-09-14 17:32:39,528 INFO L78 Accepts]: Start accepts. Automaton has 7175 states and 10522 transitions. Word has length 117 [2018-09-14 17:32:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:32:39,529 INFO L480 AbstractCegarLoop]: Abstraction has 7175 states and 10522 transitions. [2018-09-14 17:32:39,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:32:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 7175 states and 10522 transitions. [2018-09-14 17:32:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-14 17:32:39,532 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:39,532 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:32:39,533 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:39,533 INFO L82 PathProgramCache]: Analyzing trace with hash 572519882, now seen corresponding path program 1 times [2018-09-14 17:32:39,533 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:39,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:39,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:39,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:39,535 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:39,775 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:39,776 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:39,776 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:32:39,776 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:39,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:32:39,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:32:39,777 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:32:39,777 INFO L87 Difference]: Start difference. First operand 7175 states and 10522 transitions. Second operand 4 states. [2018-09-14 17:32:50,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:32:50,219 INFO L93 Difference]: Finished difference Result 27675 states and 43307 transitions. [2018-09-14 17:32:50,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:32:50,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 161 [2018-09-14 17:32:50,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:32:50,313 INFO L225 Difference]: With dead ends: 27675 [2018-09-14 17:32:50,313 INFO L226 Difference]: Without dead ends: 20506 [2018-09-14 17:32:50,369 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:32:50,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20506 states. [2018-09-14 17:32:50,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20506 to 20467. [2018-09-14 17:32:50,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20467 states. [2018-09-14 17:32:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20467 states to 20467 states and 29135 transitions. [2018-09-14 17:32:50,876 INFO L78 Accepts]: Start accepts. Automaton has 20467 states and 29135 transitions. Word has length 161 [2018-09-14 17:32:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:32:50,877 INFO L480 AbstractCegarLoop]: Abstraction has 20467 states and 29135 transitions. [2018-09-14 17:32:50,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:32:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 20467 states and 29135 transitions. [2018-09-14 17:32:50,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-09-14 17:32:50,880 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:32:50,880 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:32:50,881 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:32:50,881 INFO L82 PathProgramCache]: Analyzing trace with hash 499433324, now seen corresponding path program 1 times [2018-09-14 17:32:50,881 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:32:50,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:50,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:32:50,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:32:50,882 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:32:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:32:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:32:51,135 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:32:51,136 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:32:51,136 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:32:51,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:32:51,137 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:32:51,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:32:51,137 INFO L87 Difference]: Start difference. First operand 20467 states and 29135 transitions. Second operand 4 states. [2018-09-14 17:33:00,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:00,275 INFO L93 Difference]: Finished difference Result 47396 states and 67722 transitions. [2018-09-14 17:33:00,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:33:00,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2018-09-14 17:33:00,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:00,362 INFO L225 Difference]: With dead ends: 47396 [2018-09-14 17:33:00,362 INFO L226 Difference]: Without dead ends: 26935 [2018-09-14 17:33:00,423 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:33:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26935 states. [2018-09-14 17:33:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26935 to 26934. [2018-09-14 17:33:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26934 states. [2018-09-14 17:33:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26934 states to 26934 states and 34386 transitions. [2018-09-14 17:33:01,100 INFO L78 Accepts]: Start accepts. Automaton has 26934 states and 34386 transitions. Word has length 166 [2018-09-14 17:33:01,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:01,101 INFO L480 AbstractCegarLoop]: Abstraction has 26934 states and 34386 transitions. [2018-09-14 17:33:01,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:33:01,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26934 states and 34386 transitions. [2018-09-14 17:33:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-14 17:33:01,117 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:01,118 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:33:01,118 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:01,118 INFO L82 PathProgramCache]: Analyzing trace with hash 2012871233, now seen corresponding path program 1 times [2018-09-14 17:33:01,119 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:01,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:01,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:01,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:01,120 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:01,825 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:01,825 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:33:01,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:01,843 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:02,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:02,594 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:02,760 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 17:33:02,868 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 17:33:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:03,704 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:03,704 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:33:03,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:03,733 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:03,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:04,661 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:04,662 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:33:05,284 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:33:05,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-14 17:33:05,285 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:33:05,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:33:05,287 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:33:05,287 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-14 17:33:05,288 INFO L87 Difference]: Start difference. First operand 26934 states and 34386 transitions. Second operand 9 states. [2018-09-14 17:33:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:41,127 INFO L93 Difference]: Finished difference Result 93102 states and 138294 transitions. [2018-09-14 17:33:41,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-09-14 17:33:41,130 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 331 [2018-09-14 17:33:41,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:41,498 INFO L225 Difference]: With dead ends: 93102 [2018-09-14 17:33:41,499 INFO L226 Difference]: Without dead ends: 66174 [2018-09-14 17:33:41,639 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1397 GetRequests, 1335 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=698, Invalid=3084, Unknown=0, NotChecked=0, Total=3782 [2018-09-14 17:33:41,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66174 states. [2018-09-14 17:33:43,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66174 to 63748. [2018-09-14 17:33:43,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63748 states. [2018-09-14 17:33:43,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63748 states to 63748 states and 81210 transitions. [2018-09-14 17:33:43,892 INFO L78 Accepts]: Start accepts. Automaton has 63748 states and 81210 transitions. Word has length 331 [2018-09-14 17:33:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:43,893 INFO L480 AbstractCegarLoop]: Abstraction has 63748 states and 81210 transitions. [2018-09-14 17:33:43,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:33:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 63748 states and 81210 transitions. [2018-09-14 17:33:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-09-14 17:33:43,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:43,942 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:33:43,942 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash 987116952, now seen corresponding path program 1 times [2018-09-14 17:33:43,942 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:43,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:43,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:43,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:43,944 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:44,369 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:33:44,945 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 77 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:33:44,945 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:44,945 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:33:44,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:44,960 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:45,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:33:45,226 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-14 17:33:45,369 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:33:45,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-09-14 17:33:45,370 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:33:45,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:33:45,372 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:33:45,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:33:45,372 INFO L87 Difference]: Start difference. First operand 63748 states and 81210 transitions. Second operand 3 states. [2018-09-14 17:33:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:33:50,930 INFO L93 Difference]: Finished difference Result 127452 states and 162527 transitions. [2018-09-14 17:33:50,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:33:50,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 389 [2018-09-14 17:33:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:33:51,144 INFO L225 Difference]: With dead ends: 127452 [2018-09-14 17:33:51,145 INFO L226 Difference]: Without dead ends: 63710 [2018-09-14 17:33:51,290 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 778 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:33:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63710 states. [2018-09-14 17:33:52,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63710 to 63708. [2018-09-14 17:33:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63708 states. [2018-09-14 17:33:53,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63708 states to 63708 states and 81098 transitions. [2018-09-14 17:33:53,150 INFO L78 Accepts]: Start accepts. Automaton has 63708 states and 81098 transitions. Word has length 389 [2018-09-14 17:33:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:33:53,151 INFO L480 AbstractCegarLoop]: Abstraction has 63708 states and 81098 transitions. [2018-09-14 17:33:53,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:33:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 63708 states and 81098 transitions. [2018-09-14 17:33:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-09-14 17:33:53,217 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:33:53,217 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 3, 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] [2018-09-14 17:33:53,217 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:33:53,218 INFO L82 PathProgramCache]: Analyzing trace with hash -304535027, now seen corresponding path program 1 times [2018-09-14 17:33:53,218 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:33:53,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:53,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:53,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:33:53,219 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:33:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:33:53,749 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:53,749 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:33:53,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:53,757 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:53,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:33:54,171 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:33:54,456 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:33:54,456 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:33:54,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:33:54,472 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:33:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:33:54,773 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:33:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:33:54,987 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:33:55,870 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-09-14 17:33:55,873 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:33:55,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-14 17:33:55,873 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:33:55,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 17:33:55,875 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 17:33:55,875 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:33:55,876 INFO L87 Difference]: Start difference. First operand 63708 states and 81098 transitions. Second operand 9 states. [2018-09-14 17:34:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:14,177 INFO L93 Difference]: Finished difference Result 158839 states and 218578 transitions. [2018-09-14 17:34:14,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:34:14,178 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 450 [2018-09-14 17:34:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:14,543 INFO L225 Difference]: With dead ends: 158839 [2018-09-14 17:34:14,543 INFO L226 Difference]: Without dead ends: 95137 [2018-09-14 17:34:14,699 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1818 GetRequests, 1796 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:34:14,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95137 states. [2018-09-14 17:34:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95137 to 94861. [2018-09-14 17:34:16,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94861 states. [2018-09-14 17:34:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94861 states to 94861 states and 122870 transitions. [2018-09-14 17:34:16,590 INFO L78 Accepts]: Start accepts. Automaton has 94861 states and 122870 transitions. Word has length 450 [2018-09-14 17:34:16,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:16,591 INFO L480 AbstractCegarLoop]: Abstraction has 94861 states and 122870 transitions. [2018-09-14 17:34:16,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 17:34:16,592 INFO L276 IsEmpty]: Start isEmpty. Operand 94861 states and 122870 transitions. [2018-09-14 17:34:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-09-14 17:34:16,694 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:16,695 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-09-14 17:34:16,695 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1113792439, now seen corresponding path program 1 times [2018-09-14 17:34:16,695 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:16,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:16,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:16,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:16,698 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:19,286 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 353 proven. 289 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-14 17:34:19,286 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:19,286 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:34:19,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:19,294 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:19,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2018-09-14 17:34:19,891 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 152 proven. 267 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2018-09-14 17:34:20,621 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:34:20,622 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [17, 5] total 22 [2018-09-14 17:34:20,622 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:34:20,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:34:20,623 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:34:20,623 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2018-09-14 17:34:20,624 INFO L87 Difference]: Start difference. First operand 94861 states and 122870 transitions. Second operand 5 states. [2018-09-14 17:34:42,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:34:42,388 INFO L93 Difference]: Finished difference Result 198831 states and 265843 transitions. [2018-09-14 17:34:42,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:34:42,389 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 508 [2018-09-14 17:34:42,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:34:42,830 INFO L225 Difference]: With dead ends: 198831 [2018-09-14 17:34:42,830 INFO L226 Difference]: Without dead ends: 103976 [2018-09-14 17:34:43,027 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1034 GetRequests, 1011 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-09-14 17:34:43,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103976 states. [2018-09-14 17:34:45,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103976 to 102700. [2018-09-14 17:34:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102700 states. [2018-09-14 17:34:45,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102700 states to 102700 states and 134315 transitions. [2018-09-14 17:34:45,878 INFO L78 Accepts]: Start accepts. Automaton has 102700 states and 134315 transitions. Word has length 508 [2018-09-14 17:34:45,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:34:45,879 INFO L480 AbstractCegarLoop]: Abstraction has 102700 states and 134315 transitions. [2018-09-14 17:34:45,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:34:45,879 INFO L276 IsEmpty]: Start isEmpty. Operand 102700 states and 134315 transitions. [2018-09-14 17:34:45,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2018-09-14 17:34:45,924 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:34:45,925 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2018-09-14 17:34:45,925 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:34:45,926 INFO L82 PathProgramCache]: Analyzing trace with hash -2107430221, now seen corresponding path program 1 times [2018-09-14 17:34:45,926 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:34:45,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:45,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:45,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:34:45,930 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:34:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 167 proven. 381 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2018-09-14 17:34:46,442 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:46,442 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:34:46,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:46,449 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:46,606 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:46,838 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 478 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-14 17:34:46,838 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:48,558 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 167 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-14 17:34:48,579 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:34:48,579 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:34:48,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:34:48,598 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:34:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:34:48,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:34:49,230 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 478 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-14 17:34:49,230 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:34:50,365 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 167 proven. 475 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (9)] Exception during sending of exit command (exit): Broken pipe [2018-09-14 17:34:50,368 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:34:50,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 8] total 13 [2018-09-14 17:34:50,369 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:34:50,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-14 17:34:50,370 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-14 17:34:50,370 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:34:50,370 INFO L87 Difference]: Start difference. First operand 102700 states and 134315 transitions. Second operand 8 states. Received shutdown request... [2018-09-14 17:35:22,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-14 17:35:22,354 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:35:22,359 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:35:22,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:35:22 BoogieIcfgContainer [2018-09-14 17:35:22,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:35:22,361 INFO L168 Benchmark]: Toolchain (without parser) took 227546.32 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -581.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,362 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-14 17:35:22,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2529.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,363 INFO L168 Benchmark]: Boogie Procedure Inliner took 272.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 969.9 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,364 INFO L168 Benchmark]: Boogie Preprocessor took 1204.54 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 966.3 MB). Free memory was 969.9 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,365 INFO L168 Benchmark]: RCFGBuilder took 12166.74 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 177.2 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -50.4 MB). Peak memory consumption was 769.2 MB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,366 INFO L168 Benchmark]: TraceAbstraction took 211363.87 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 742.9 MB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 364.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-09-14 17:35:22,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2529.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 272.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 969.9 MB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1204.54 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 966.3 MB). Free memory was 969.9 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12166.74 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 177.2 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -50.4 MB). Peak memory consumption was 769.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211363.87 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 742.9 MB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 364.8 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 126). Cancelled while BasicCegarLoop was constructing difference of abstraction (102700states) and FLOYD_HOARE automaton (currently 18 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (145033 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 181.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6042 SDtfs, 41628 SDslu, 6744 SDs, 0 SdLazy, 77952 SolverSat, 17004 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 151.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7151 GetRequests, 6986 SyntacticMatches, 20 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102700occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 4999 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 6280 NumberOfCodeBlocks, 6280 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 9739 ConstructedInterpolants, 208 QuantifiedInterpolants, 15806426 SizeOfPredicates, 4 NumberOfNonLiveVariables, 5597 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 8088/10022 InterpolantCoveringCapability, 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/Problem13_label26_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-35-22-387.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label26_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-35-22-387.csv Completed graceful shutdown