java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:09:54,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:09:54,761 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:09:54,773 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:09:54,773 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:09:54,774 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:09:54,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:09:54,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:09:54,780 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:09:54,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:09:54,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:09:54,782 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:09:54,783 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:09:54,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:09:54,785 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:09:54,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:09:54,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:09:54,789 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:09:54,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:09:54,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:09:54,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:09:54,795 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:09:54,797 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:09:54,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:09:54,798 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:09:54,799 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:09:54,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:09:54,801 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:09:54,802 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:09:54,803 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:09:54,804 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:09:54,804 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 21:09:54,807 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:09:54,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:09:54,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:09:54,840 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:09:54,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:09:54,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:09:54,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:09:54,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:09:54,844 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:09:54,844 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:09:54,844 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:09:54,844 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:09:54,845 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:09:54,845 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:09:54,846 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:09:54,846 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:09:54,846 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:09:54,846 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:09:54,846 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:09:54,848 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:09:54,848 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:09:54,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:09:54,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:09:54,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:09:54,849 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:09:54,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:09:54,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:09:54,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:09:54,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:09:54,850 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:09:54,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:09:54,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:09:54,851 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:09:54,851 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:09:54,851 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:09:54,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:09:54,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:09:54,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:09:54,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:09:54,937 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:09:54,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-10-24 21:09:54,999 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/945b126da/ea4941ff690f44f8a6e2d657d5296db7/FLAG127d28d3a [2018-10-24 21:09:55,656 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:09:55,659 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label25_true-unreach-call.c [2018-10-24 21:09:55,683 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/945b126da/ea4941ff690f44f8a6e2d657d5296db7/FLAG127d28d3a [2018-10-24 21:09:55,703 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/945b126da/ea4941ff690f44f8a6e2d657d5296db7 [2018-10-24 21:09:55,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:09:55,718 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:09:55,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:09:55,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:09:55,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:09:55,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:09:55" (1/1) ... [2018-10-24 21:09:55,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:55, skipping insertion in model container [2018-10-24 21:09:55,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:09:55" (1/1) ... [2018-10-24 21:09:55,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:09:55,835 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:09:56,478 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:09:56,482 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:09:56,698 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:09:56,718 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:09:56,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56 WrapperNode [2018-10-24 21:09:56,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:09:56,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:09:56,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:09:56,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:09:56,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:56,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:09:57,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:09:57,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:09:57,008 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:09:57,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... [2018-10-24 21:09:57,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:09:57,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:09:57,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:09:57,144 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:09:57,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 21:09:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:09:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:09:57,222 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:09:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:09:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:09:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:09:57,223 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:09:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:10:01,869 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:10:01,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:10:01 BoogieIcfgContainer [2018-10-24 21:10:01,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:10:01,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:10:01,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:10:01,876 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:10:01,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:09:55" (1/3) ... [2018-10-24 21:10:01,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:10:01, skipping insertion in model container [2018-10-24 21:10:01,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:09:56" (2/3) ... [2018-10-24 21:10:01,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:10:01, skipping insertion in model container [2018-10-24 21:10:01,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:10:01" (3/3) ... [2018-10-24 21:10:01,881 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label25_true-unreach-call.c [2018-10-24 21:10:01,891 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:10:01,907 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:10:01,925 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:10:01,984 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:10:01,984 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:10:01,984 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:10:01,985 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:10:01,985 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:10:01,985 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:10:01,985 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:10:01,985 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:10:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:10:02,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-10-24 21:10:02,029 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:02,030 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:02,033 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:02,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:02,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1384704100, now seen corresponding path program 1 times [2018-10-24 21:10:02,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:02,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:02,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:02,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:02,108 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:02,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:02,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:10:02,508 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:02,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:10:02,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:10:02,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:02,533 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 21:10:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:06,064 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-10-24 21:10:06,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:10:06,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2018-10-24 21:10:06,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:06,095 INFO L225 Difference]: With dead ends: 996 [2018-10-24 21:10:06,095 INFO L226 Difference]: Without dead ends: 697 [2018-10-24 21:10:06,104 INFO L605 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 [2018-10-24 21:10:06,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-10-24 21:10:06,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-10-24 21:10:06,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-10-24 21:10:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-10-24 21:10:06,198 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 38 [2018-10-24 21:10:06,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:06,199 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-10-24 21:10:06,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:10:06,199 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-10-24 21:10:06,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 21:10:06,205 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:06,205 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:06,206 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:06,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:06,206 INFO L82 PathProgramCache]: Analyzing trace with hash -331878893, now seen corresponding path program 1 times [2018-10-24 21:10:06,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:06,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:06,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:06,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:06,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:06,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:06,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:10:06,496 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:06,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:10:06,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:10:06,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:10:06,499 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-10-24 21:10:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:10,660 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-10-24 21:10:10,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:10:10,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-24 21:10:10,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:10,678 INFO L225 Difference]: With dead ends: 1725 [2018-10-24 21:10:10,678 INFO L226 Difference]: Without dead ends: 1250 [2018-10-24 21:10:10,684 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:10:10,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-10-24 21:10:10,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-10-24 21:10:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-10-24 21:10:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-10-24 21:10:10,771 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 111 [2018-10-24 21:10:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:10,771 INFO L481 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-10-24 21:10:10,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:10:10,772 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-10-24 21:10:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 21:10:10,783 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:10,783 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:10,783 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:10,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:10,784 INFO L82 PathProgramCache]: Analyzing trace with hash -689587928, now seen corresponding path program 1 times [2018-10-24 21:10:10,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:10,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:10,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:10,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:10,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:11,048 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:11,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:11,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:10:11,049 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:11,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:10:11,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:10:11,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:10:11,052 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-10-24 21:10:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:14,093 INFO L93 Difference]: Finished difference Result 3240 states and 4918 transitions. [2018-10-24 21:10:14,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:10:14,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-10-24 21:10:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:14,121 INFO L225 Difference]: With dead ends: 3240 [2018-10-24 21:10:14,121 INFO L226 Difference]: Without dead ends: 2015 [2018-10-24 21:10:14,131 INFO L605 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 [2018-10-24 21:10:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2018-10-24 21:10:14,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2000. [2018-10-24 21:10:14,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2018-10-24 21:10:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2897 transitions. [2018-10-24 21:10:14,204 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2897 transitions. Word has length 112 [2018-10-24 21:10:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:14,205 INFO L481 AbstractCegarLoop]: Abstraction has 2000 states and 2897 transitions. [2018-10-24 21:10:14,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:10:14,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2897 transitions. [2018-10-24 21:10:14,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-24 21:10:14,212 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:14,212 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:14,216 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:14,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:14,217 INFO L82 PathProgramCache]: Analyzing trace with hash -2107878529, now seen corresponding path program 1 times [2018-10-24 21:10:14,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:14,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:14,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:14,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:14,219 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:14,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:10:14,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:10:14,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:14,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:10:14,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:10:14,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:10:14,763 INFO L87 Difference]: Start difference. First operand 2000 states and 2897 transitions. Second operand 6 states. [2018-10-24 21:10:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:10:21,093 INFO L93 Difference]: Finished difference Result 7663 states and 13269 transitions. [2018-10-24 21:10:21,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:10:21,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-10-24 21:10:21,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:10:21,165 INFO L225 Difference]: With dead ends: 7663 [2018-10-24 21:10:21,165 INFO L226 Difference]: Without dead ends: 5669 [2018-10-24 21:10:21,229 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:10:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2018-10-24 21:10:21,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5142. [2018-10-24 21:10:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-10-24 21:10:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 7307 transitions. [2018-10-24 21:10:21,459 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 7307 transitions. Word has length 137 [2018-10-24 21:10:21,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:10:21,460 INFO L481 AbstractCegarLoop]: Abstraction has 5142 states and 7307 transitions. [2018-10-24 21:10:21,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:10:21,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 7307 transitions. [2018-10-24 21:10:21,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 21:10:21,469 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:10:21,469 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:10:21,469 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:10:21,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1631754857, now seen corresponding path program 1 times [2018-10-24 21:10:21,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:10:21,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:21,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:10:21,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:10:21,472 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:10:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:10:21,728 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:10:21,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:10:21,729 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:10:21,730 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-24 21:10:21,732 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:10:21,814 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:10:21,815 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:10:23,588 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:10:23,590 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:10:23,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:10:23,609 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:10:26,138 INFO L232 lantSequenceWeakener]: Weakened 177 states. On average, predicates are now at 73.49% of their original sizes. [2018-10-24 21:10:26,139 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:10:26,670 INFO L413 sIntCurrentIteration]: We have 184 unified AI predicates [2018-10-24 21:10:26,670 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:10:26,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:10:26,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:10:26,672 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:10:26,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:10:26,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:10:26,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:10:26,673 INFO L87 Difference]: Start difference. First operand 5142 states and 7307 transitions. Second operand 7 states. [2018-10-24 21:10:29,321 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:11:17,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:11:17,734 INFO L93 Difference]: Finished difference Result 10470 states and 14826 transitions. [2018-10-24 21:11:17,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:11:17,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 185 [2018-10-24 21:11:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:11:17,771 INFO L225 Difference]: With dead ends: 10470 [2018-10-24 21:11:17,772 INFO L226 Difference]: Without dead ends: 5334 [2018-10-24 21:11:17,802 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 185 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:11:17,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5334 states. [2018-10-24 21:11:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5334 to 5332. [2018-10-24 21:11:17,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5332 states. [2018-10-24 21:11:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 7507 transitions. [2018-10-24 21:11:17,982 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 7507 transitions. Word has length 185 [2018-10-24 21:11:17,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:11:17,983 INFO L481 AbstractCegarLoop]: Abstraction has 5332 states and 7507 transitions. [2018-10-24 21:11:17,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:11:17,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 7507 transitions. [2018-10-24 21:11:17,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-10-24 21:11:17,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:11:17,992 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:11:17,992 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:11:17,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:11:17,993 INFO L82 PathProgramCache]: Analyzing trace with hash -826417273, now seen corresponding path program 1 times [2018-10-24 21:11:17,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:11:17,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:17,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:11:17,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:17,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:11:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:11:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:11:18,333 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:11:18,334 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:11:18,334 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-10-24 21:11:18,335 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:11:18,346 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:11:18,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:11:21,758 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:11:37,394 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 21:11:37,394 INFO L272 AbstractInterpreter]: Visited 141 different actions 410 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:11:37,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:11:37,402 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 21:11:37,402 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:11:37,402 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 21:11:37,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:11:37,411 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:11:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:11:37,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:11:37,776 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:11:37,777 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 21:11:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:11:38,534 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 21:11:38,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-24 21:11:38,535 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 21:11:38,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 21:11:38,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 21:11:38,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:11:38,540 INFO L87 Difference]: Start difference. First operand 5332 states and 7507 transitions. Second operand 9 states. [2018-10-24 21:11:47,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:11:47,418 INFO L93 Difference]: Finished difference Result 14930 states and 27251 transitions. [2018-10-24 21:11:47,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 21:11:47,418 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2018-10-24 21:11:47,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:11:47,531 INFO L225 Difference]: With dead ends: 14930 [2018-10-24 21:11:47,532 INFO L226 Difference]: Without dead ends: 9794 [2018-10-24 21:11:47,620 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 487 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-24 21:11:47,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9794 states. [2018-10-24 21:11:48,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9794 to 9682. [2018-10-24 21:11:48,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9682 states. [2018-10-24 21:11:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9682 states to 9682 states and 16280 transitions. [2018-10-24 21:11:48,109 INFO L78 Accepts]: Start accepts. Automaton has 9682 states and 16280 transitions. Word has length 242 [2018-10-24 21:11:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:11:48,109 INFO L481 AbstractCegarLoop]: Abstraction has 9682 states and 16280 transitions. [2018-10-24 21:11:48,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 21:11:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand 9682 states and 16280 transitions. [2018-10-24 21:11:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-24 21:11:48,118 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:11:48,119 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:11:48,119 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:11:48,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:11:48,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1119037538, now seen corresponding path program 1 times [2018-10-24 21:11:48,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:11:48,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:48,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:11:48,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:11:48,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:11:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:11:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-24 21:11:48,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:11:48,648 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:11:48,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-10-24 21:11:48,649 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [205], [207], [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], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:11:48,654 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:11:48,654 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:11:50,911 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:12:05,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:12:05,094 INFO L272 AbstractInterpreter]: Visited 125 different actions 363 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:12:05,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:12:05,101 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:12:08,587 INFO L232 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 76.41% of their original sizes. [2018-10-24 21:12:08,587 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:12:22,483 INFO L413 sIntCurrentIteration]: We have 249 unified AI predicates [2018-10-24 21:12:22,484 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:12:22,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:12:22,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [7] total 26 [2018-10-24 21:12:22,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:12:22,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-24 21:12:22,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-24 21:12:22,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2018-10-24 21:12:22,486 INFO L87 Difference]: Start difference. First operand 9682 states and 16280 transitions. Second operand 21 states. Received shutdown request... [2018-10-24 21:13:33,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 21:13:33,415 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:13:33,420 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:13:33,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:13:33 BoogieIcfgContainer [2018-10-24 21:13:33,420 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:13:33,421 INFO L168 Benchmark]: Toolchain (without parser) took 217704.21 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:13:33,423 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 21:13:33,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1000.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:13:33,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 286.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:13:33,426 INFO L168 Benchmark]: Boogie Preprocessor took 136.50 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:13:33,427 INFO L168 Benchmark]: RCFGBuilder took 4726.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 172.2 MB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:13:33,428 INFO L168 Benchmark]: TraceAbstraction took 211547.75 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -960.5 MB). Peak memory consumption was 957.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:13:33,437 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1000.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 286.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -815.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.50 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4726.45 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 172.2 MB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211547.75 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -960.5 MB). Peak memory consumption was 957.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 99]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 99). Cancelled while BasicCegarLoop was constructing difference of abstraction (9682states) and FLOYD_HOARE automaton (currently 9 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (94 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 211.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 148.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1432 SDtfs, 5656 SDslu, 1476 SDs, 0 SdLazy, 11646 SolverSat, 2456 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 65.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 981 GetRequests, 908 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 18.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9682occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 37.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.995344404120386 AbsIntWeakeningRatio, 0.12933025404157045 AbsIntAvgWeakeningVarsNumRemoved, 1066.9422632794458 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 891 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1317 NumberOfCodeBlocks, 1317 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1550 ConstructedInterpolants, 0 QuantifiedInterpolants, 955185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 713/786 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown