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/Problem13_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:25:26,712 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:25:26,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:25:26,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:25:26,735 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:25:26,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:25:26,740 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:25:26,743 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:25:26,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:25:26,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:25:26,755 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:25:26,755 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:25:26,756 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:25:26,759 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:25:26,761 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:25:26,762 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:25:26,763 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:25:26,766 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:25:26,768 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:25:26,772 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:25:26,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:25:26,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:25:26,779 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:25:26,781 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:25:26,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:25:26,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:25:26,784 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:25:26,785 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:25:26,786 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:25:26,787 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:25:26,787 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:25:26,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:25:26,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:25:26,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:25:26,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:25:26,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:25:26,790 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 [2018-11-12 16:25:26,814 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:25:26,814 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:25:26,815 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:25:26,815 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:25:26,815 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:25:26,815 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:25:26,816 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:25:26,816 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:25:26,816 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:25:26,816 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:25:26,816 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:25:26,817 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:25:26,817 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:25:26,817 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:25:26,818 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:25:26,818 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:25:26,818 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:25:26,818 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:25:26,818 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:25:26,819 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:25:26,819 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:25:26,819 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:25:26,819 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:25:26,819 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:25:26,820 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:25:26,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:25:26,820 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:25:26,820 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:25:26,820 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:25:26,820 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:25:26,821 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:25:26,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:25:26,821 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:25:26,821 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:25:26,821 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:25:26,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:25:26,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:25:26,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:25:26,908 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:25:26,908 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:25:26,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-11-12 16:25:26,969 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef31946/c23a33151d914161953df5a6fc033fba/FLAG69f32b8d5 [2018-11-12 16:25:27,779 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:25:27,780 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-11-12 16:25:27,817 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef31946/c23a33151d914161953df5a6fc033fba/FLAG69f32b8d5 [2018-11-12 16:25:27,836 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3cef31946/c23a33151d914161953df5a6fc033fba [2018-11-12 16:25:27,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:25:27,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:25:27,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:25:27,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:25:27,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:25:27,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:27" (1/1) ... [2018-11-12 16:25:27,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403c8f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:27, skipping insertion in model container [2018-11-12 16:25:27,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:25:27" (1/1) ... [2018-11-12 16:25:27,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:25:28,088 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:25:29,621 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:25:29,625 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:25:30,368 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:25:30,406 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:25:30,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30 WrapperNode [2018-11-12 16:25:30,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:25:30,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:25:30,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:25:30,409 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:25:30,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:25:30,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:25:30,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:25:30,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:25:30,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:30,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:31,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (1/1) ... [2018-11-12 16:25:31,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:25:31,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:25:31,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:25:31,051 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:25:31,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (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 [2018-11-12 16:25:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:25:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:25:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:25:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 16:25:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 16:25:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 16:25:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 16:25:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:25:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:25:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:25:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:25:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:25:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:25:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:25:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:25:41,123 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:25:41,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:41 BoogieIcfgContainer [2018-11-12 16:25:41,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:25:41,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:25:41,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:25:41,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:25:41,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:25:27" (1/3) ... [2018-11-12 16:25:41,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63114a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:41, skipping insertion in model container [2018-11-12 16:25:41,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:25:30" (2/3) ... [2018-11-12 16:25:41,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63114a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:25:41, skipping insertion in model container [2018-11-12 16:25:41,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:25:41" (3/3) ... [2018-11-12 16:25:41,132 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label43_false-unreach-call.c [2018-11-12 16:25:41,141 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:25:41,151 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:25:41,168 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:25:41,233 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:25:41,234 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:25:41,234 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:25:41,234 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:25:41,234 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:25:41,234 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:25:41,234 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:25:41,235 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:25:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-12 16:25:41,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-12 16:25:41,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:25:41,289 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] [2018-11-12 16:25:41,291 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:25:41,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:25:41,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2074424869, now seen corresponding path program 1 times [2018-11-12 16:25:41,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:25:41,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:41,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:25:41,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:41,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:25:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:25:41,684 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:25:41,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:25:41,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:25:41,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:25:41,806 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:25:41,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:25:41,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:25:41,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:25:41,832 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-12 16:25:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:25:51,195 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-11-12 16:25:51,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:25:51,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-12 16:25:51,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:25:51,228 INFO L225 Difference]: With dead ends: 3101 [2018-11-12 16:25:51,229 INFO L226 Difference]: Without dead ends: 1979 [2018-11-12 16:25:51,241 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:25:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-11-12 16:25:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-11-12 16:25:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-12 16:25:51,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-11-12 16:25:51,412 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 25 [2018-11-12 16:25:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:25:51,412 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-11-12 16:25:51,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:25:51,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-11-12 16:25:51,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-12 16:25:51,421 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:25:51,424 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:25:51,424 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:25:51,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:25:51,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1247410474, now seen corresponding path program 1 times [2018-11-12 16:25:51,426 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:25:51,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:51,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:25:51,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:25:51,427 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:25:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:25:51,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:25:51,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:25:51,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 16:25:51,703 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:25:51,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 16:25:51,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 16:25:51,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 16:25:51,705 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-11-12 16:26:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:05,437 INFO L93 Difference]: Finished difference Result 5712 states and 10461 transitions. [2018-11-12 16:26:05,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 16:26:05,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-11-12 16:26:05,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:05,468 INFO L225 Difference]: With dead ends: 5712 [2018-11-12 16:26:05,469 INFO L226 Difference]: Without dead ends: 3759 [2018-11-12 16:26:05,476 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:26:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2018-11-12 16:26:05,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3674. [2018-11-12 16:26:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3674 states. [2018-11-12 16:26:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3674 states to 3674 states and 6037 transitions. [2018-11-12 16:26:05,597 INFO L78 Accepts]: Start accepts. Automaton has 3674 states and 6037 transitions. Word has length 101 [2018-11-12 16:26:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:05,598 INFO L480 AbstractCegarLoop]: Abstraction has 3674 states and 6037 transitions. [2018-11-12 16:26:05,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 16:26:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 6037 transitions. [2018-11-12 16:26:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-12 16:26:05,603 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:05,603 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:26:05,603 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:05,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:05,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1584202367, now seen corresponding path program 1 times [2018-11-12 16:26:05,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:05,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:05,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:05,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:05,605 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:05,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:05,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 16:26:05,810 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:05,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:26:05,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:26:05,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 16:26:05,811 INFO L87 Difference]: Start difference. First operand 3674 states and 6037 transitions. Second operand 6 states. [2018-11-12 16:26:13,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:13,559 INFO L93 Difference]: Finished difference Result 10851 states and 18388 transitions. [2018-11-12 16:26:13,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 16:26:13,560 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-11-12 16:26:13,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:13,605 INFO L225 Difference]: With dead ends: 10851 [2018-11-12 16:26:13,605 INFO L226 Difference]: Without dead ends: 7183 [2018-11-12 16:26:13,619 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 16:26:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2018-11-12 16:26:13,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 7132. [2018-11-12 16:26:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7132 states. [2018-11-12 16:26:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7132 states to 7132 states and 10915 transitions. [2018-11-12 16:26:13,800 INFO L78 Accepts]: Start accepts. Automaton has 7132 states and 10915 transitions. Word has length 102 [2018-11-12 16:26:13,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:13,800 INFO L480 AbstractCegarLoop]: Abstraction has 7132 states and 10915 transitions. [2018-11-12 16:26:13,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:26:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand 7132 states and 10915 transitions. [2018-11-12 16:26:13,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-12 16:26:13,803 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:13,804 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:13,804 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:13,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:13,804 INFO L82 PathProgramCache]: Analyzing trace with hash -51827352, now seen corresponding path program 1 times [2018-11-12 16:26:13,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:13,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:13,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:13,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:13,806 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:13,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:13,968 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:26:13,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:26:13,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 16:26:13,969 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:13,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:26:13,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:26:13,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:26:13,970 INFO L87 Difference]: Start difference. First operand 7132 states and 10915 transitions. Second operand 3 states. [2018-11-12 16:26:21,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:26:21,727 INFO L93 Difference]: Finished difference Result 20922 states and 33388 transitions. [2018-11-12 16:26:21,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:26:21,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-11-12 16:26:21,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:26:21,800 INFO L225 Difference]: With dead ends: 20922 [2018-11-12 16:26:21,801 INFO L226 Difference]: Without dead ends: 13796 [2018-11-12 16:26:21,845 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 16:26:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13796 states. [2018-11-12 16:26:22,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13796 to 13795. [2018-11-12 16:26:22,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13795 states. [2018-11-12 16:26:22,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13795 states to 13795 states and 20359 transitions. [2018-11-12 16:26:22,398 INFO L78 Accepts]: Start accepts. Automaton has 13795 states and 20359 transitions. Word has length 126 [2018-11-12 16:26:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:26:22,399 INFO L480 AbstractCegarLoop]: Abstraction has 13795 states and 20359 transitions. [2018-11-12 16:26:22,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:26:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 13795 states and 20359 transitions. [2018-11-12 16:26:22,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-12 16:26:22,408 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:26:22,409 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:26:22,409 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:26:22,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:22,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1302306563, now seen corresponding path program 1 times [2018-11-12 16:26:22,410 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:26:22,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:22,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:26:22,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:26:22,411 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:26:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:26:22,704 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:26:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 36 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:26:22,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:26:22,775 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:26:22,776 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-11-12 16:26:22,778 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2727], [2729], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:26:22,828 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:26:22,829 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:26:23,531 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:26:23,532 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Performed 1614 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1614 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 16:26:23,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:26:23,577 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:26:24,338 INFO L227 lantSequenceWeakener]: Weakened 157 states. On average, predicates are now at 71.15% of their original sizes. [2018-11-12 16:26:24,339 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:26:24,749 INFO L415 sIntCurrentIteration]: We unified 178 AI predicates to 178 [2018-11-12 16:26:24,750 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:26:24,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:26:24,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 16:26:24,751 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:26:24,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:26:24,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:26:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:26:24,753 INFO L87 Difference]: Start difference. First operand 13795 states and 20359 transitions. Second operand 10 states. [2018-11-12 16:26:38,029 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:27:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:27:25,754 INFO L93 Difference]: Finished difference Result 28393 states and 41676 transitions. [2018-11-12 16:27:25,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 16:27:25,755 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2018-11-12 16:27:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:27:25,805 INFO L225 Difference]: With dead ends: 28393 [2018-11-12 16:27:25,805 INFO L226 Difference]: Without dead ends: 14604 [2018-11-12 16:27:25,851 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 16:27:25,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14604 states. [2018-11-12 16:27:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14604 to 14599. [2018-11-12 16:27:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14599 states. [2018-11-12 16:27:26,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14599 states to 14599 states and 21174 transitions. [2018-11-12 16:27:26,177 INFO L78 Accepts]: Start accepts. Automaton has 14599 states and 21174 transitions. Word has length 179 [2018-11-12 16:27:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:27:26,177 INFO L480 AbstractCegarLoop]: Abstraction has 14599 states and 21174 transitions. [2018-11-12 16:27:26,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:27:26,178 INFO L276 IsEmpty]: Start isEmpty. Operand 14599 states and 21174 transitions. [2018-11-12 16:27:26,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-11-12 16:27:26,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:27:26,186 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 16:27:26,187 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:27:26,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:27:26,187 INFO L82 PathProgramCache]: Analyzing trace with hash -701665718, now seen corresponding path program 1 times [2018-11-12 16:27:26,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:27:26,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:27:26,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:27:26,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:27:26,189 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:27:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:27:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 135 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 16:27:26,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:27:26,794 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:27:26,795 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-11-12 16:27:26,795 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2727], [2729], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:27:26,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:27:26,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:27:38,699 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:27:38,699 INFO L272 AbstractInterpreter]: Visited 110 different actions 320 times. Merged at 5 different actions 12 times. Never widened. Performed 6902 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6902 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:27:38,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:27:38,737 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:27:39,439 INFO L227 lantSequenceWeakener]: Weakened 77 states. On average, predicates are now at 71.67% of their original sizes. [2018-11-12 16:27:39,439 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:27:41,638 INFO L415 sIntCurrentIteration]: We unified 279 AI predicates to 279 [2018-11-12 16:27:41,638 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:27:41,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:27:41,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 16:27:41,639 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:27:41,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 16:27:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 16:27:41,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-12 16:27:41,640 INFO L87 Difference]: Start difference. First operand 14599 states and 21174 transitions. Second operand 19 states. [2018-11-12 16:27:51,378 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:28:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:28:43,175 INFO L93 Difference]: Finished difference Result 29494 states and 42891 transitions. [2018-11-12 16:28:43,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-12 16:28:43,176 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 280 [2018-11-12 16:28:43,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:28:43,243 INFO L225 Difference]: With dead ends: 29494 [2018-11-12 16:28:43,243 INFO L226 Difference]: Without dead ends: 15705 [2018-11-12 16:28:43,287 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 295 GetRequests, 210 SyntacticMatches, 52 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 16:28:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15705 states. [2018-11-12 16:28:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15705 to 15700. [2018-11-12 16:28:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15700 states. [2018-11-12 16:28:43,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15700 states to 15700 states and 22313 transitions. [2018-11-12 16:28:43,709 INFO L78 Accepts]: Start accepts. Automaton has 15700 states and 22313 transitions. Word has length 280 [2018-11-12 16:28:43,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:28:43,709 INFO L480 AbstractCegarLoop]: Abstraction has 15700 states and 22313 transitions. [2018-11-12 16:28:43,709 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-12 16:28:43,709 INFO L276 IsEmpty]: Start isEmpty. Operand 15700 states and 22313 transitions. [2018-11-12 16:28:43,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-11-12 16:28:43,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:28:43,719 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 16:28:43,719 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:28:43,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:28:43,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1810143743, now seen corresponding path program 1 times [2018-11-12 16:28:43,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:28:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:28:43,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:28:43,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:28:43,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:28:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:28:44,103 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 16:28:44,593 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 60 proven. 213 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-12 16:28:44,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:28:44,594 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:28:44,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 310 with the following transitions: [2018-11-12 16:28:44,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2727], [2729], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-12 16:28:44,601 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:28:44,602 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:28:45,181 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:28:45,182 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Performed 7056 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7056 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 16:28:45,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:28:45,189 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:28:46,278 INFO L227 lantSequenceWeakener]: Weakened 306 states. On average, predicates are now at 70.89% of their original sizes. [2018-11-12 16:28:46,279 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:28:46,418 INFO L415 sIntCurrentIteration]: We unified 308 AI predicates to 308 [2018-11-12 16:28:46,418 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:28:46,419 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:28:46,419 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 16:28:46,419 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:28:46,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:28:46,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:28:46,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:28:46,420 INFO L87 Difference]: Start difference. First operand 15700 states and 22313 transitions. Second operand 11 states. Received shutdown request... [2018-11-12 16:28:50,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-12 16:28:50,326 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:28:50,332 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:28:50,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:28:50 BoogieIcfgContainer [2018-11-12 16:28:50,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:28:50,333 INFO L168 Benchmark]: Toolchain (without parser) took 202484.62 ms. Allocated memory was 1.5 GB in the beginning and 5.8 GB in the end (delta: 4.2 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 268.5 MB). Peak memory consumption was 4.5 GB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,335 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:28:50,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2556.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 372.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,338 INFO L168 Benchmark]: Boogie Preprocessor took 269.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,339 INFO L168 Benchmark]: RCFGBuilder took 10073.91 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 164.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.4 MB). Peak memory consumption was 665.0 MB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,340 INFO L168 Benchmark]: TraceAbstraction took 189207.32 ms. Allocated memory was 2.5 GB in the beginning and 5.8 GB in the end (delta: 3.3 GB). Free memory was 2.2 GB in the beginning and 1.1 GB in the end (delta: 1.1 GB). Peak memory consumption was 4.3 GB. Max. memory is 7.1 GB. [2018-11-12 16:28:50,345 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2556.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 372.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 269.15 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10073.91 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 164.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.4 MB). Peak memory consumption was 665.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 189207.32 ms. Allocated memory was 2.5 GB in the beginning and 5.8 GB in the end (delta: 3.3 GB). Free memory was 2.2 GB in the beginning and 1.1 GB in the end (delta: 1.1 GB). Peak memory consumption was 4.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 66). Cancelled while BasicCegarLoop was constructing difference of abstraction (15700states) and FLOYD_HOARE automaton (currently 13 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (495 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 189.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 165.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4616 SDtfs, 17786 SDslu, 2643 SDs, 0 SdLazy, 27740 SolverSat, 5113 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 81.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 823 GetRequests, 690 SyntacticMatches, 55 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15700occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 13.3s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9969280270738071 AbsIntWeakeningRatio, 0.12156862745098039 AbsIntAvgWeakeningVarsNumRemoved, 13.20392156862745 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 167 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1122 NumberOfCodeBlocks, 1122 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1115 ConstructedInterpolants, 0 QuantifiedInterpolants, 758348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 375/734 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown