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/Problem15_label50_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 18:11:21,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 18:11:21,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 18:11:21,670 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 18:11:21,670 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 18:11:21,671 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 18:11:21,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 18:11:21,678 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 18:11:21,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 18:11:21,681 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 18:11:21,684 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 18:11:21,684 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 18:11:21,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 18:11:21,686 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 18:11:21,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 18:11:21,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 18:11:21,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 18:11:21,702 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 18:11:21,705 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 18:11:21,706 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 18:11:21,707 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 18:11:21,709 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 18:11:21,712 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 18:11:21,713 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 18:11:21,713 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 18:11:21,714 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 18:11:21,715 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 18:11:21,715 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 18:11:21,716 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 18:11:21,717 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 18:11:21,717 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 18:11:21,718 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 18:11:21,718 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 18:11:21,718 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 18:11:21,719 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 18:11:21,720 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 18:11:21,720 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 18:11:21,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 18:11:21,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 18:11:21,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 18:11:21,736 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 18:11:21,736 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 18:11:21,737 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 18:11:21,737 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 18:11:21,737 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 18:11:21,737 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 18:11:21,737 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 18:11:21,737 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 18:11:21,738 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 18:11:21,738 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 18:11:21,739 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 18:11:21,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 18:11:21,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 18:11:21,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 18:11:21,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 18:11:21,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 18:11:21,740 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 18:11:21,740 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 18:11:21,740 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 18:11:21,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 18:11:21,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 18:11:21,741 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 18:11:21,741 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 18:11:21,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 18:11:21,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 18:11:21,742 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 18:11:21,742 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 18:11:21,742 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 18:11:21,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 18:11:21,743 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 18:11:21,743 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 18:11:21,743 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 18:11:21,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 18:11:21,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 18:11:21,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 18:11:21,809 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 18:11:21,810 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 18:11:21,811 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label50_false-unreach-call.c [2018-11-07 18:11:21,873 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8388cdf87/798fc09f14dd42aea71c70a0727f7e08/FLAGcd5e7503e [2018-11-07 18:11:22,571 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 18:11:22,572 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label50_false-unreach-call.c [2018-11-07 18:11:22,595 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8388cdf87/798fc09f14dd42aea71c70a0727f7e08/FLAGcd5e7503e [2018-11-07 18:11:22,614 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8388cdf87/798fc09f14dd42aea71c70a0727f7e08 [2018-11-07 18:11:22,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 18:11:22,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 18:11:22,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 18:11:22,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 18:11:22,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 18:11:22,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:11:22" (1/1) ... [2018-11-07 18:11:22,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60268c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:22, skipping insertion in model container [2018-11-07 18:11:22,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:11:22" (1/1) ... [2018-11-07 18:11:22,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 18:11:22,751 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 18:11:23,640 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:11:23,645 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 18:11:23,920 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 18:11:23,942 INFO L193 MainTranslator]: Completed translation [2018-11-07 18:11:23,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23 WrapperNode [2018-11-07 18:11:23,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 18:11:23,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 18:11:23,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 18:11:23,945 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 18:11:23,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 18:11:24,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 18:11:24,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 18:11:24,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 18:11:24,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (1/1) ... [2018-11-07 18:11:24,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 18:11:24,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 18:11:24,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 18:11:24,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 18:11:24,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (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 18:11:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 18:11:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 18:11:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 18:11:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 18:11:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 18:11:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 18:11:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 18:11:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 18:11:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 18:11:24,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 18:11:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 18:11:30,718 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 18:11:30,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:11:30 BoogieIcfgContainer [2018-11-07 18:11:30,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 18:11:30,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 18:11:30,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 18:11:30,725 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 18:11:30,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:11:22" (1/3) ... [2018-11-07 18:11:30,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ec554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:11:30, skipping insertion in model container [2018-11-07 18:11:30,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:11:23" (2/3) ... [2018-11-07 18:11:30,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8ec554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:11:30, skipping insertion in model container [2018-11-07 18:11:30,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:11:30" (3/3) ... [2018-11-07 18:11:30,729 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label50_false-unreach-call.c [2018-11-07 18:11:30,738 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 18:11:30,746 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 18:11:30,762 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 18:11:30,802 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 18:11:30,802 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 18:11:30,802 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 18:11:30,803 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 18:11:30,803 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 18:11:30,803 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 18:11:30,803 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 18:11:30,803 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 18:11:30,836 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 18:11:30,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-07 18:11:30,843 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:30,844 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:11:30,847 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:30,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:30,853 INFO L82 PathProgramCache]: Analyzing trace with hash 849169321, now seen corresponding path program 1 times [2018-11-07 18:11:30,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:30,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:30,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:30,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:30,906 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:31,228 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 18:11:31,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:11:31,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:11:31,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:31,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:11:31,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:11:31,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:11:31,259 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 18:11:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:37,382 INFO L93 Difference]: Finished difference Result 1501 states and 2761 transitions. [2018-11-07 18:11:37,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:11:37,384 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-11-07 18:11:37,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:37,409 INFO L225 Difference]: With dead ends: 1501 [2018-11-07 18:11:37,409 INFO L226 Difference]: Without dead ends: 1057 [2018-11-07 18:11:37,421 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 [2018-11-07 18:11:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-11-07 18:11:37,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 744. [2018-11-07 18:11:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 18:11:37,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1125 transitions. [2018-11-07 18:11:37,560 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1125 transitions. Word has length 19 [2018-11-07 18:11:37,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:37,560 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1125 transitions. [2018-11-07 18:11:37,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:11:37,561 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1125 transitions. [2018-11-07 18:11:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-07 18:11:37,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:37,568 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 18:11:37,569 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:37,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash -654320835, now seen corresponding path program 1 times [2018-11-07 18:11:37,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:37,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:37,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:37,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:37,572 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:11:37,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:11:37,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 18:11:37,881 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:37,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 18:11:37,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 18:11:37,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 18:11:37,887 INFO L87 Difference]: Start difference. First operand 744 states and 1125 transitions. Second operand 4 states. [2018-11-07 18:11:43,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:11:43,045 INFO L93 Difference]: Finished difference Result 2731 states and 4243 transitions. [2018-11-07 18:11:43,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 18:11:43,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-11-07 18:11:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:11:43,066 INFO L225 Difference]: With dead ends: 2731 [2018-11-07 18:11:43,066 INFO L226 Difference]: Without dead ends: 1993 [2018-11-07 18:11:43,072 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 [2018-11-07 18:11:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2018-11-07 18:11:43,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1989. [2018-11-07 18:11:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2018-11-07 18:11:43,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2769 transitions. [2018-11-07 18:11:43,174 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2769 transitions. Word has length 89 [2018-11-07 18:11:43,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:11:43,174 INFO L480 AbstractCegarLoop]: Abstraction has 1989 states and 2769 transitions. [2018-11-07 18:11:43,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 18:11:43,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2769 transitions. [2018-11-07 18:11:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-07 18:11:43,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:11:43,188 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:11:43,188 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:11:43,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:43,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1953806169, now seen corresponding path program 1 times [2018-11-07 18:11:43,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:11:43,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:43,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:11:43,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:11:43,190 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:11:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:11:43,660 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 27 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 18:11:43,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:11:43,661 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:11:43,662 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-07 18:11:43,664 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [816], [821], [823], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:11:43,715 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:11:43,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:11:44,330 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:11:46,263 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:11:46,265 INFO L272 AbstractInterpreter]: Visited 130 different actions 874 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:11:46,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:11:46,317 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:11:47,283 INFO L227 lantSequenceWeakener]: Weakened 75 states. On average, predicates are now at 77.33% of their original sizes. [2018-11-07 18:11:47,283 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:11:50,844 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-11-07 18:11:50,844 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:11:50,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:11:50,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-07 18:11:50,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:11:50,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 18:11:50,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 18:11:50,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2018-11-07 18:11:50,848 INFO L87 Difference]: Start difference. First operand 1989 states and 2769 transitions. Second operand 22 states. [2018-11-07 18:12:46,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:46,742 INFO L93 Difference]: Finished difference Result 6563 states and 8543 transitions. [2018-11-07 18:12:46,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-07 18:12:46,742 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 239 [2018-11-07 18:12:46,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:46,763 INFO L225 Difference]: With dead ends: 6563 [2018-11-07 18:12:46,764 INFO L226 Difference]: Without dead ends: 4580 [2018-11-07 18:12:46,774 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 252 GetRequests, 186 SyntacticMatches, 33 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=272, Invalid=918, Unknown=0, NotChecked=0, Total=1190 [2018-11-07 18:12:46,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2018-11-07 18:12:46,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 3805. [2018-11-07 18:12:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2018-11-07 18:12:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 4657 transitions. [2018-11-07 18:12:46,878 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 4657 transitions. Word has length 239 [2018-11-07 18:12:46,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:46,879 INFO L480 AbstractCegarLoop]: Abstraction has 3805 states and 4657 transitions. [2018-11-07 18:12:46,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-07 18:12:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 4657 transitions. [2018-11-07 18:12:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-11-07 18:12:46,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:46,888 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 18:12:46,889 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:46,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:46,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2017728486, now seen corresponding path program 1 times [2018-11-07 18:12:46,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:46,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:46,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:46,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:46,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-11-07 18:12:47,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 18:12:47,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 18:12:47,412 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:47,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 18:12:47,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 18:12:47,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 18:12:47,414 INFO L87 Difference]: Start difference. First operand 3805 states and 4657 transitions. Second operand 5 states. [2018-11-07 18:12:51,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:12:51,111 INFO L93 Difference]: Finished difference Result 7781 states and 10284 transitions. [2018-11-07 18:12:51,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 18:12:51,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 381 [2018-11-07 18:12:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:12:51,151 INFO L225 Difference]: With dead ends: 7781 [2018-11-07 18:12:51,152 INFO L226 Difference]: Without dead ends: 5798 [2018-11-07 18:12:51,161 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 18:12:51,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5798 states. [2018-11-07 18:12:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5798 to 5764. [2018-11-07 18:12:51,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5764 states. [2018-11-07 18:12:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5764 states to 5764 states and 7025 transitions. [2018-11-07 18:12:51,327 INFO L78 Accepts]: Start accepts. Automaton has 5764 states and 7025 transitions. Word has length 381 [2018-11-07 18:12:51,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:12:51,328 INFO L480 AbstractCegarLoop]: Abstraction has 5764 states and 7025 transitions. [2018-11-07 18:12:51,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 18:12:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5764 states and 7025 transitions. [2018-11-07 18:12:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-11-07 18:12:51,340 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:12:51,341 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:51,341 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:12:51,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:51,341 INFO L82 PathProgramCache]: Analyzing trace with hash 860400699, now seen corresponding path program 1 times [2018-11-07 18:12:51,342 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:12:51,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:51,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:12:51,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:12:51,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:12:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:12:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 18:12:51,791 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:12:51,791 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:12:51,792 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 382 with the following transitions: [2018-11-07 18:12:51,793 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:12:51,803 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:12:51,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:12:52,078 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:12:52,286 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 18:12:52,287 INFO L272 AbstractInterpreter]: Visited 283 different actions 562 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 18:12:52,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:12:52,294 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 18:12:52,829 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 79.51% of their original sizes. [2018-11-07 18:12:52,830 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 18:12:53,206 INFO L415 sIntCurrentIteration]: We unified 380 AI predicates to 380 [2018-11-07 18:12:53,207 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 18:12:53,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:12:53,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-07 18:12:53,207 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:12:53,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 18:12:53,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 18:12:53,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-07 18:12:53,209 INFO L87 Difference]: Start difference. First operand 5764 states and 7025 transitions. Second operand 21 states. [2018-11-07 18:13:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 18:13:45,968 INFO L93 Difference]: Finished difference Result 11170 states and 13825 transitions. [2018-11-07 18:13:45,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-07 18:13:45,968 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 381 [2018-11-07 18:13:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 18:13:45,997 INFO L225 Difference]: With dead ends: 11170 [2018-11-07 18:13:45,997 INFO L226 Difference]: Without dead ends: 7228 [2018-11-07 18:13:46,011 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 398 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=1203, Unknown=0, NotChecked=0, Total=1482 [2018-11-07 18:13:46,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7228 states. [2018-11-07 18:13:46,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7228 to 6988. [2018-11-07 18:13:46,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6988 states. [2018-11-07 18:13:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 8342 transitions. [2018-11-07 18:13:46,165 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 8342 transitions. Word has length 381 [2018-11-07 18:13:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 18:13:46,166 INFO L480 AbstractCegarLoop]: Abstraction has 6988 states and 8342 transitions. [2018-11-07 18:13:46,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-07 18:13:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 8342 transitions. [2018-11-07 18:13:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-11-07 18:13:46,177 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 18:13:46,178 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 18:13:46,178 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 18:13:46,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:46,179 INFO L82 PathProgramCache]: Analyzing trace with hash 420464121, now seen corresponding path program 1 times [2018-11-07 18:13:46,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 18:13:46,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:46,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:46,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 18:13:46,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 18:13:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:47,066 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 15 proven. 115 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-07 18:13:47,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:13:47,067 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 18:13:47,067 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 407 with the following transitions: [2018-11-07 18:13:47,068 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [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], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [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], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 18:13:47,074 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 18:13:47,074 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 18:13:47,261 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 18:13:48,506 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 18:13:48,506 INFO L272 AbstractInterpreter]: Visited 284 different actions 1121 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 18:13:48,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 18:13:48,514 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 18:13:48,514 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 18:13:48,514 INFO L194 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 [2018-11-07 18:13:48,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 18:13:48,524 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 18:13:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 18:13:48,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 18:14:58,707 WARN L179 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 1387 DAG size of output: 246 [2018-11-07 18:14:59,777 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:14:59,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 18:15:00,211 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 18:15:00,242 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 18:15:00,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-11-07 18:15:00,242 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 18:15:00,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 18:15:00,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 18:15:00,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 18:15:00,246 INFO L87 Difference]: Start difference. First operand 6988 states and 8342 transitions. Second operand 3 states. Received shutdown request... [2018-11-07 18:15:07,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 18:15:07,430 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 18:15:07,435 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 18:15:07,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:15:07 BoogieIcfgContainer [2018-11-07 18:15:07,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 18:15:07,436 INFO L168 Benchmark]: Toolchain (without parser) took 224809.80 ms. Allocated memory was 1.5 GB in the beginning and 5.4 GB in the end (delta: 3.9 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -906.8 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,437 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. [2018-11-07 18:15:07,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1315.54 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 242.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 703.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -848.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,440 INFO L168 Benchmark]: Boogie Preprocessor took 165.18 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,441 INFO L168 Benchmark]: RCFGBuilder took 6365.87 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 291.9 MB). Peak memory consumption was 291.9 MB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,442 INFO L168 Benchmark]: TraceAbstraction took 216715.74 ms. Allocated memory was 2.2 GB in the beginning and 5.4 GB in the end (delta: 3.1 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -470.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 18:15:07,447 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 1315.54 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 242.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 703.1 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -848.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.18 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6365.87 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 291.9 MB). Peak memory consumption was 291.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216715.74 ms. Allocated memory was 2.2 GB in the beginning and 5.4 GB in the end (delta: 3.1 GB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -470.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 43). Cancelled while BasicCegarLoop was constructing difference of abstraction (6988states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (3566 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 216.6s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 131.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2135 SDtfs, 13288 SDslu, 1504 SDs, 0 SdLazy, 18250 SolverSat, 2046 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 56.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1493 GetRequests, 1371 SyntacticMatches, 36 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 76.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6988occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.6s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9977242287383145 AbsIntWeakeningRatio, 0.08737864077669903 AbsIntAvgWeakeningVarsNumRemoved, 13.18284789644013 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 1366 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 73.6s InterpolantComputationTime, 1921 NumberOfCodeBlocks, 1921 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2319 ConstructedInterpolants, 15 QuantifiedInterpolants, 6760581 SizeOfPredicates, 3 NumberOfNonLiveVariables, 586 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 591/795 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown