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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label03_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:24:23,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:24:23,653 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:24:23,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:24:23,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:24:23,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:24:23,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:24:23,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:24:23,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:24:23,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:24:23,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:24:23,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:24:23,681 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:24:23,682 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:24:23,683 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:24:23,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:24:23,686 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:24:23,691 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:24:23,696 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:24:23,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:24:23,702 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:24:23,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:24:23,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:24:23,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:24:23,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:24:23,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:24:23,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:24:23,716 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:24:23,716 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:24:23,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:24:23,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:24:23,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:24:23,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:24:23,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:24:23,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:24:23,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:24:23,727 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 18:24:23,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:24:23,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:24:23,761 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:24:23,761 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:24:23,761 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:24:23,762 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:24:23,762 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:24:23,762 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:24:23,762 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:24:23,763 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:24:23,763 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:24:23,763 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:24:23,763 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:24:23,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:24:23,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:24:23,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:24:23,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:24:23,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:24:23,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:24:23,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:24:23,766 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:24:23,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:24:23,768 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:24:23,769 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:24:23,769 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:24:23,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:24:23,769 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:24:23,770 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:24:23,770 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:24:23,770 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:24:23,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:24:23,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:24:23,771 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:24:23,771 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:24:23,771 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:24:23,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:24:23,850 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:24:23,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:24:23,855 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:24:23,855 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:24:23,856 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label03_false-unreach-call.c [2018-11-07 18:24:23,913 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb97e67e9/893d90a1abec4310bc097690ff12301c/FLAG877b05917 [2018-11-07 18:24:24,662 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:24:24,663 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label03_false-unreach-call.c [2018-11-07 18:24:24,693 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb97e67e9/893d90a1abec4310bc097690ff12301c/FLAG877b05917 [2018-11-07 18:24:24,709 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb97e67e9/893d90a1abec4310bc097690ff12301c [2018-11-07 18:24:24,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:24:24,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:24:24,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:24:24,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:24:24,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:24:24,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:24:24" (1/1) ... [2018-11-07 18:24:24,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b56b8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:24, skipping insertion in model container [2018-11-07 18:24:24,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:24:24" (1/1) ... [2018-11-07 18:24:24,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:24:24,889 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:24:26,083 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:24:26,089 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:24:26,700 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:24:26,732 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:24:26,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26 WrapperNode [2018-11-07 18:24:26,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:24:26,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:24:26,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:24:26,734 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:24:26,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:24:27,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:24:27,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:24:27,059 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:24:27,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (1/1) ... [2018-11-07 18:24:27,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:24:27,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:24:27,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:24:27,298 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:24:27,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (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 [2018-11-07 18:24:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:24:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:24:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:24:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 18:24:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 18:24:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:24:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:24:27,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:24:27,371 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:24:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:24:27,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:24:27,371 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:24:27,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:24:37,160 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:24:37,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:24:37 BoogieIcfgContainer [2018-11-07 18:24:37,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:24:37,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:24:37,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:24:37,166 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:24:37,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:24:24" (1/3) ... [2018-11-07 18:24:37,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3213d613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:24:37, skipping insertion in model container [2018-11-07 18:24:37,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:24:26" (2/3) ... [2018-11-07 18:24:37,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3213d613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:24:37, skipping insertion in model container [2018-11-07 18:24:37,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:24:37" (3/3) ... [2018-11-07 18:24:37,170 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label03_false-unreach-call.c [2018-11-07 18:24:37,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:24:37,190 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:24:37,206 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:24:37,266 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:24:37,266 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:24:37,266 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:24:37,267 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:24:37,267 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:24:37,267 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:24:37,267 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:24:37,267 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:24:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 18:24:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 18:24:37,326 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:24:37,328 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:24:37,331 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:24:37,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:24:37,338 INFO L82 PathProgramCache]: Analyzing trace with hash -112875308, now seen corresponding path program 1 times [2018-11-07 18:24:37,340 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:24:37,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:37,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:24:37,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:37,387 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:24:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:24:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:24:37,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:24:37,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 18:24:37,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:24:37,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 18:24:37,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 18:24:37,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 18:24:37,783 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-07 18:24:44,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:24:44,280 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-07 18:24:44,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:24:44,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-07 18:24:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:24:44,315 INFO L225 Difference]: With dead ends: 2251 [2018-11-07 18:24:44,315 INFO L226 Difference]: Without dead ends: 1474 [2018-11-07 18:24:44,331 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 18:24:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-07 18:24:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-07 18:24:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 18:24:44,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-07 18:24:44,475 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 18 [2018-11-07 18:24:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:24:44,476 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-07 18:24:44,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 18:24:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-07 18:24:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-07 18:24:44,484 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:24:44,486 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:24:44,486 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:24:44,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:24:44,487 INFO L82 PathProgramCache]: Analyzing trace with hash -2070134694, now seen corresponding path program 1 times [2018-11-07 18:24:44,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:24:44,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:44,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:24:44,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:44,489 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:24:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:24:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:24:44,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:24:44,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:24:44,816 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:24:44,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:24:44,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:24:44,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:24:44,819 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-07 18:24:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:24:53,148 INFO L93 Difference]: Finished difference Result 4416 states and 8482 transitions. [2018-11-07 18:24:53,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:24:53,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-11-07 18:24:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:24:53,179 INFO L225 Difference]: With dead ends: 4416 [2018-11-07 18:24:53,179 INFO L226 Difference]: Without dead ends: 2948 [2018-11-07 18:24:53,185 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 18:24:53,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2018-11-07 18:24:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2922. [2018-11-07 18:24:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-07 18:24:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 5419 transitions. [2018-11-07 18:24:53,296 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 5419 transitions. Word has length 108 [2018-11-07 18:24:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:24:53,297 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 5419 transitions. [2018-11-07 18:24:53,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:24:53,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 5419 transitions. [2018-11-07 18:24:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 18:24:53,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:24:53,303 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:24:53,303 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:24:53,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:24:53,304 INFO L82 PathProgramCache]: Analyzing trace with hash -197219529, now seen corresponding path program 1 times [2018-11-07 18:24:53,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:24:53,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:53,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:24:53,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:24:53,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:24:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:24:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:24:53,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:24:53,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 18:24:53,848 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:24:53,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 18:24:53,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 18:24:53,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:24:53,849 INFO L87 Difference]: Start difference. First operand 2922 states and 5419 transitions. Second operand 6 states. [2018-11-07 18:25:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:25:04,387 INFO L93 Difference]: Finished difference Result 11789 states and 22881 transitions. [2018-11-07 18:25:04,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 18:25:04,388 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-11-07 18:25:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:25:04,458 INFO L225 Difference]: With dead ends: 11789 [2018-11-07 18:25:04,458 INFO L226 Difference]: Without dead ends: 8873 [2018-11-07 18:25:04,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:25:04,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8873 states. [2018-11-07 18:25:04,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8873 to 8796. [2018-11-07 18:25:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8796 states. [2018-11-07 18:25:04,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8796 states to 8796 states and 14058 transitions. [2018-11-07 18:25:04,765 INFO L78 Accepts]: Start accepts. Automaton has 8796 states and 14058 transitions. Word has length 109 [2018-11-07 18:25:04,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:25:04,766 INFO L480 AbstractCegarLoop]: Abstraction has 8796 states and 14058 transitions. [2018-11-07 18:25:04,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 18:25:04,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8796 states and 14058 transitions. [2018-11-07 18:25:04,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-07 18:25:04,778 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:25:04,779 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:25:04,779 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:25:04,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:25:04,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1086867959, now seen corresponding path program 1 times [2018-11-07 18:25:04,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:25:04,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:25:04,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:25:04,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:25:04,782 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:25:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:25:05,087 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:25:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 22 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 18:25:05,311 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:25:05,311 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:25:05,312 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-11-07 18:25:05,314 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 18:25:05,377 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:25:05,377 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:25:05,934 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:25:05,936 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 18:25:05,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:25:05,992 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:25:06,619 INFO L227 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 77.26% of their original sizes. [2018-11-07 18:25:06,620 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:25:06,960 INFO L415 sIntCurrentIteration]: We unified 178 AI predicates to 178 [2018-11-07 18:25:06,960 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:25:06,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:25:06,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-11-07 18:25:06,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:25:06,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 18:25:06,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 18:25:06,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 18:25:06,963 INFO L87 Difference]: Start difference. First operand 8796 states and 14058 transitions. Second operand 7 states. [2018-11-07 18:25:14,212 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:25:32,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:25:32,395 INFO L93 Difference]: Finished difference Result 18291 states and 29016 transitions. [2018-11-07 18:25:32,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 18:25:32,395 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2018-11-07 18:25:32,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:25:32,447 INFO L225 Difference]: With dead ends: 18291 [2018-11-07 18:25:32,448 INFO L226 Difference]: Without dead ends: 9501 [2018-11-07 18:25:32,477 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 18:25:32,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9501 states. [2018-11-07 18:25:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9501 to 9499. [2018-11-07 18:25:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9499 states. [2018-11-07 18:25:32,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9499 states to 9499 states and 14770 transitions. [2018-11-07 18:25:32,699 INFO L78 Accepts]: Start accepts. Automaton has 9499 states and 14770 transitions. Word has length 179 [2018-11-07 18:25:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:25:32,700 INFO L480 AbstractCegarLoop]: Abstraction has 9499 states and 14770 transitions. [2018-11-07 18:25:32,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 18:25:32,700 INFO L276 IsEmpty]: Start isEmpty. Operand 9499 states and 14770 transitions. [2018-11-07 18:25:32,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2018-11-07 18:25:32,710 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:25:32,710 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 18:25:32,711 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:25:32,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:25:32,711 INFO L82 PathProgramCache]: Analyzing trace with hash -139492666, now seen corresponding path program 1 times [2018-11-07 18:25:32,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:25:32,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:25:32,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:25:32,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:25:32,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:25:32,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:25:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 92 proven. 167 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 18:25:33,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:25:33,480 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:25:33,480 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 367 with the following transitions: [2018-11-07 18:25:33,481 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [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], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 18:25:33,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:25:33,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:25:34,600 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:25:34,600 INFO L272 AbstractInterpreter]: Visited 196 different actions 388 times. Merged at 5 different actions 7 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:25:34,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:25:34,610 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:25:35,341 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 77.68% of their original sizes. [2018-11-07 18:25:35,342 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:25:37,144 INFO L415 sIntCurrentIteration]: We unified 365 AI predicates to 365 [2018-11-07 18:25:37,144 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:25:37,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:25:37,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [11] total 31 [2018-11-07 18:25:37,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:25:37,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 18:25:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 18:25:37,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:25:37,147 INFO L87 Difference]: Start difference. First operand 9499 states and 14770 transitions. Second operand 22 states. [2018-11-07 18:26:03,959 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:26:40,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:26:40,539 INFO L93 Difference]: Finished difference Result 20471 states and 31648 transitions. [2018-11-07 18:26:40,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-07 18:26:40,539 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 366 [2018-11-07 18:26:40,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:26:40,582 INFO L225 Difference]: With dead ends: 20471 [2018-11-07 18:26:40,582 INFO L226 Difference]: Without dead ends: 11681 [2018-11-07 18:26:40,607 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 382 GetRequests, 329 SyntacticMatches, 16 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=278, Invalid=1204, Unknown=0, NotChecked=0, Total=1482 [2018-11-07 18:26:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11681 states. [2018-11-07 18:26:40,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11681 to 11441. [2018-11-07 18:26:40,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11441 states. [2018-11-07 18:26:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11441 states to 11441 states and 16752 transitions. [2018-11-07 18:26:40,842 INFO L78 Accepts]: Start accepts. Automaton has 11441 states and 16752 transitions. Word has length 366 [2018-11-07 18:26:40,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:26:40,843 INFO L480 AbstractCegarLoop]: Abstraction has 11441 states and 16752 transitions. [2018-11-07 18:26:40,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 18:26:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 11441 states and 16752 transitions. [2018-11-07 18:26:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2018-11-07 18:26:40,867 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:26:40,868 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:26:40,868 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:26:40,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:26:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1026042273, now seen corresponding path program 1 times [2018-11-07 18:26:40,869 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:26:40,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:26:40,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:26:40,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:26:40,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:26:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:26:41,441 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 18:26:42,063 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 39 proven. 153 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 18:26:42,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:26:42,064 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:26:42,064 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 708 with the following transitions: [2018-11-07 18:26:42,066 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1667], [1669], [1672], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2116], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [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], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 18:26:42,079 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:26:42,079 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:26:51,957 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:26:51,958 INFO L272 AbstractInterpreter]: Visited 537 different actions 1068 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:26:51,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:26:51,963 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:26:52,809 INFO L227 lantSequenceWeakener]: Weakened 398 states. On average, predicates are now at 77.44% of their original sizes. [2018-11-07 18:26:52,809 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:26:53,632 INFO L415 sIntCurrentIteration]: We unified 706 AI predicates to 706 [2018-11-07 18:26:53,633 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:26:53,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:26:53,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [5] total 34 [2018-11-07 18:26:53,633 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:26:53,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-11-07 18:26:53,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-11-07 18:26:53,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=810, Unknown=0, NotChecked=0, Total=930 [2018-11-07 18:26:53,636 INFO L87 Difference]: Start difference. First operand 11441 states and 16752 transitions. Second operand 31 states. [2018-11-07 18:27:33,245 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 18:28:00,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-11-07 18:28:00,695 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:28:00,701 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:28:00,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:28:00 BoogieIcfgContainer [2018-11-07 18:28:00,702 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:28:00,703 INFO L168 Benchmark]: Toolchain (without parser) took 215981.88 ms. Allocated memory was 1.5 GB in the beginning and 5.6 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -280.8 MB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,704 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 18:28:00,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2010.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 324.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,706 INFO L168 Benchmark]: Boogie Preprocessor took 238.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,707 INFO L168 Benchmark]: RCFGBuilder took 9863.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.0 MB). Peak memory consumption was 513.0 MB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,708 INFO L168 Benchmark]: TraceAbstraction took 203539.52 ms. Allocated memory was 2.3 GB in the beginning and 5.6 GB in the end (delta: 3.3 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -7.9 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-07 18:28:00,713 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2010.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 324.81 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 238.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9863.91 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 513.0 MB). Peak memory consumption was 513.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 203539.52 ms. Allocated memory was 2.3 GB in the beginning and 5.6 GB in the end (delta: 3.3 GB). Free memory was 1.7 GB in the beginning and 1.7 GB in the end (delta: -7.9 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 42]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 42). Cancelled while BasicCegarLoop was constructing difference of abstraction (11441states) and FLOYD_HOARE automaton (currently 42 states, 31 states before enhancement),while ReachableStatesComputation was computing reachable states (13027 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 203.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 181.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2491 SDtfs, 23310 SDslu, 2002 SDs, 0 SdLazy, 41914 SolverSat, 5124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1329 GetRequests, 1186 SyntacticMatches, 19 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11441occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.7s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9976575350248204 AbsIntWeakeningRatio, 0.07846277021617294 AbsIntAvgWeakeningVarsNumRemoved, 16.34187349879904 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 345 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1487 NumberOfCodeBlocks, 1487 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1481 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 257/642 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown