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_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:29:06,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:29:06,674 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:29:06,687 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:29:06,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:29:06,688 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:29:06,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:29:06,691 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:29:06,693 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:29:06,694 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:29:06,695 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:29:06,695 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:29:06,696 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:29:06,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:29:06,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:29:06,699 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:29:06,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:29:06,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:29:06,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:29:06,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:29:06,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:29:06,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:29:06,709 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:29:06,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:29:06,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:29:06,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:29:06,714 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:29:06,715 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:29:06,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:29:06,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:29:06,720 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:29:06,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:29:06,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:29:06,721 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:29:06,725 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:29:06,725 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:29:06,726 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:29:06,747 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:29:06,747 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:29:06,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:29:06,752 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:29:06,752 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:29:06,752 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:29:06,752 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:29:06,752 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:29:06,753 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:29:06,753 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:29:06,753 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:29:06,754 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:29:06,754 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:29:06,755 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:29:06,755 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:29:06,755 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:29:06,755 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:29:06,755 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:29:06,756 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:29:06,757 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:29:06,758 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:29:06,758 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:29:06,758 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:29:06,758 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:29:06,758 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:29:06,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:29:06,759 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:29:06,759 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:29:06,759 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:29:06,760 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:29:06,760 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:29:06,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:29:06,760 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:29:06,760 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:29:06,761 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:29:06,810 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:29:06,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:29:06,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:29:06,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:29:06,828 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:29:06,829 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-11-07 20:29:06,894 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73f9a266/7d979c213534416090e713ef14a705f1/FLAGf8e00b062 [2018-11-07 20:29:07,652 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:29:07,653 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label37_true-unreach-call.c [2018-11-07 20:29:07,694 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73f9a266/7d979c213534416090e713ef14a705f1/FLAGf8e00b062 [2018-11-07 20:29:07,717 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f73f9a266/7d979c213534416090e713ef14a705f1 [2018-11-07 20:29:07,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:29:07,735 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:29:07,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:29:07,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:29:07,744 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:29:07,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:07" (1/1) ... [2018-11-07 20:29:07,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49219dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:07, skipping insertion in model container [2018-11-07 20:29:07,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:07" (1/1) ... [2018-11-07 20:29:07,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:29:07,970 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:29:09,520 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:29:09,525 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:29:10,251 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:29:10,289 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:29:10,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10 WrapperNode [2018-11-07 20:29:10,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:29:10,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:29:10,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:29:10,291 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:29:10,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:29:10,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:29:10,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:29:10,697 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:29:10,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... [2018-11-07 20:29:10,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:29:10,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:29:10,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:29:10,967 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:29:10,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:29:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:29:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:29:11,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:29:11,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:29:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:29:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:29:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:29:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:29:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:29:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:29:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:29:11,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:29:11,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:29:11,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:29:11,044 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:29:20,580 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:29:20,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:20 BoogieIcfgContainer [2018-11-07 20:29:20,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:29:20,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:29:20,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:29:20,586 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:29:20,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:29:07" (1/3) ... [2018-11-07 20:29:20,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3453ff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:20, skipping insertion in model container [2018-11-07 20:29:20,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:10" (2/3) ... [2018-11-07 20:29:20,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3453ff30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:20, skipping insertion in model container [2018-11-07 20:29:20,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:20" (3/3) ... [2018-11-07 20:29:20,590 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label37_true-unreach-call.c [2018-11-07 20:29:20,601 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:29:20,614 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:29:20,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:29:20,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:29:20,694 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:29:20,694 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:29:20,694 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:29:20,694 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:29:20,694 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:29:20,695 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:29:20,695 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:29:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 20:29:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-11-07 20:29:20,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:29:20,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:29:20,754 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:29:20,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:29:20,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1389126997, now seen corresponding path program 1 times [2018-11-07 20:29:20,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:29:20,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:20,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:29:20,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:20,813 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:29:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:29:21,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:29:21,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:29:21,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:29:21,321 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:29:21,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:29:21,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:29:21,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:29:21,350 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 20:29:30,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:29:30,078 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-11-07 20:29:30,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:29:30,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-11-07 20:29:30,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:29:30,118 INFO L225 Difference]: With dead ends: 3087 [2018-11-07 20:29:30,118 INFO L226 Difference]: Without dead ends: 1965 [2018-11-07 20:29:30,129 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 [2018-11-07 20:29:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-11-07 20:29:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-11-07 20:29:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 20:29:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-11-07 20:29:30,306 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 61 [2018-11-07 20:29:30,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:29:30,307 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-11-07 20:29:30,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:29:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-11-07 20:29:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-07 20:29:30,322 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:29:30,323 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, 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] [2018-11-07 20:29:30,323 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:29:30,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:29:30,324 INFO L82 PathProgramCache]: Analyzing trace with hash -159322310, now seen corresponding path program 1 times [2018-11-07 20:29:30,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:29:30,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:30,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:29:30,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:30,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:29:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:29:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:29:30,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:29:30,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:29:30,846 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:29:30,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:29:30,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:29:30,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:29:30,849 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-11-07 20:29:43,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:29:43,275 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-11-07 20:29:43,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:29:43,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-11-07 20:29:43,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:29:43,306 INFO L225 Difference]: With dead ends: 5634 [2018-11-07 20:29:43,306 INFO L226 Difference]: Without dead ends: 3681 [2018-11-07 20:29:43,314 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:29:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-11-07 20:29:43,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-11-07 20:29:43,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-11-07 20:29:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-11-07 20:29:43,435 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 138 [2018-11-07 20:29:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:29:43,435 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-11-07 20:29:43,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:29:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-11-07 20:29:43,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-07 20:29:43,449 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:29:43,450 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, 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] [2018-11-07 20:29:43,450 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:29:43,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:29:43,451 INFO L82 PathProgramCache]: Analyzing trace with hash -587412254, now seen corresponding path program 1 times [2018-11-07 20:29:43,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:29:43,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:43,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:29:43,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:43,452 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:29:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:29:43,710 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:29:43,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:29:43,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:29:43,711 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:29:43,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:29:43,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:29:43,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:29:43,712 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-11-07 20:29:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:29:56,275 INFO L93 Difference]: Finished difference Result 12391 states and 20613 transitions. [2018-11-07 20:29:56,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:29:56,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-11-07 20:29:56,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:29:56,326 INFO L225 Difference]: With dead ends: 12391 [2018-11-07 20:29:56,327 INFO L226 Difference]: Without dead ends: 8747 [2018-11-07 20:29:56,348 INFO L604 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 [2018-11-07 20:29:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2018-11-07 20:29:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8687. [2018-11-07 20:29:56,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8687 states. [2018-11-07 20:29:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 12870 transitions. [2018-11-07 20:29:56,571 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 12870 transitions. Word has length 157 [2018-11-07 20:29:56,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:29:56,574 INFO L480 AbstractCegarLoop]: Abstraction has 8687 states and 12870 transitions. [2018-11-07 20:29:56,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:29:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 12870 transitions. [2018-11-07 20:29:56,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-07 20:29:56,579 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:29:56,579 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, 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] [2018-11-07 20:29:56,580 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:29:56,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:29:56,581 INFO L82 PathProgramCache]: Analyzing trace with hash 955353466, now seen corresponding path program 1 times [2018-11-07 20:29:56,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:29:56,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:56,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:29:56,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:29:56,582 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:29:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:29:56,928 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:29:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:29:57,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:29:57,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:29:57,019 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:29:57,020 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:29:57,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:29:57,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:29:57,020 INFO L87 Difference]: Start difference. First operand 8687 states and 12870 transitions. Second operand 6 states. [2018-11-07 20:30:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:30:07,671 INFO L93 Difference]: Finished difference Result 22915 states and 34933 transitions. [2018-11-07 20:30:07,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:30:07,675 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-11-07 20:30:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:30:07,750 INFO L225 Difference]: With dead ends: 22915 [2018-11-07 20:30:07,750 INFO L226 Difference]: Without dead ends: 14234 [2018-11-07 20:30:07,795 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:30:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2018-11-07 20:30:08,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 14063. [2018-11-07 20:30:08,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14063 states. [2018-11-07 20:30:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 19980 transitions. [2018-11-07 20:30:08,198 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 19980 transitions. Word has length 169 [2018-11-07 20:30:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:30:08,199 INFO L480 AbstractCegarLoop]: Abstraction has 14063 states and 19980 transitions. [2018-11-07 20:30:08,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:30:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 19980 transitions. [2018-11-07 20:30:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-07 20:30:08,209 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:30:08,210 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:30:08,210 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:30:08,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:08,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1006516317, now seen corresponding path program 1 times [2018-11-07 20:30:08,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:30:08,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:08,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:30:08,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:30:08,212 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:30:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:30:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:30:08,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:30:08,565 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:30:08,567 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-11-07 20:30:08,575 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:30:08,640 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:30:08,640 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:30:09,653 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:30:09,655 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:30:09,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:30:09,684 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:30:10,563 INFO L227 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 71.83% of their original sizes. [2018-11-07 20:30:10,564 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:30:11,309 INFO L415 sIntCurrentIteration]: We unified 223 AI predicates to 223 [2018-11-07 20:30:11,309 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:30:11,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:30:11,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 20:30:11,311 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:30:11,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:30:11,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:30:11,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:30:11,312 INFO L87 Difference]: Start difference. First operand 14063 states and 19980 transitions. Second operand 10 states. [2018-11-07 20:30:22,915 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:31:02,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:31:02,883 INFO L93 Difference]: Finished difference Result 28929 states and 40975 transitions. [2018-11-07 20:31:02,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:31:02,883 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 224 [2018-11-07 20:31:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:31:02,932 INFO L225 Difference]: With dead ends: 28929 [2018-11-07 20:31:02,932 INFO L226 Difference]: Without dead ends: 14872 [2018-11-07 20:31:02,971 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 227 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 20:31:02,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14872 states. [2018-11-07 20:31:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14872 to 14867. [2018-11-07 20:31:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14867 states. [2018-11-07 20:31:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14867 states to 14867 states and 20794 transitions. [2018-11-07 20:31:03,325 INFO L78 Accepts]: Start accepts. Automaton has 14867 states and 20794 transitions. Word has length 224 [2018-11-07 20:31:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:31:03,326 INFO L480 AbstractCegarLoop]: Abstraction has 14867 states and 20794 transitions. [2018-11-07 20:31:03,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:31:03,326 INFO L276 IsEmpty]: Start isEmpty. Operand 14867 states and 20794 transitions. [2018-11-07 20:31:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-11-07 20:31:03,336 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:31:03,336 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:31:03,337 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:31:03,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:31:03,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1213195996, now seen corresponding path program 1 times [2018-11-07 20:31:03,338 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:31:03,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:31:03,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:31:03,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:31:03,339 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:31:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:31:03,696 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:31:04,654 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 103 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:31:04,654 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:31:04,655 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:31:04,655 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-11-07 20:31:04,655 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3245], [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] [2018-11-07 20:31:04,661 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:31:04,662 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:31:05,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:31:05,094 INFO L272 AbstractInterpreter]: Visited 138 different actions 401 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:31:05,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:31:05,102 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:31:05,560 INFO L227 lantSequenceWeakener]: Weakened 284 states. On average, predicates are now at 71.39% of their original sizes. [2018-11-07 20:31:05,560 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:31:05,967 INFO L415 sIntCurrentIteration]: We unified 286 AI predicates to 286 [2018-11-07 20:31:05,967 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:31:05,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:31:05,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-07 20:31:05,968 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:31:05,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:31:05,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:31:05,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:31:05,969 INFO L87 Difference]: Start difference. First operand 14867 states and 20794 transitions. Second operand 11 states. [2018-11-07 20:31:11,218 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:32:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:32:15,021 INFO L93 Difference]: Finished difference Result 32947 states and 46051 transitions. [2018-11-07 20:32:15,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 20:32:15,021 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2018-11-07 20:32:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:32:15,075 INFO L225 Difference]: With dead ends: 32947 [2018-11-07 20:32:15,075 INFO L226 Difference]: Without dead ends: 18890 [2018-11-07 20:32:15,096 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2018-11-07 20:32:15,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18890 states. [2018-11-07 20:32:15,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18890 to 18881. [2018-11-07 20:32:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18881 states. [2018-11-07 20:32:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18881 states to 18881 states and 24893 transitions. [2018-11-07 20:32:15,492 INFO L78 Accepts]: Start accepts. Automaton has 18881 states and 24893 transitions. Word has length 287 [2018-11-07 20:32:15,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:32:15,493 INFO L480 AbstractCegarLoop]: Abstraction has 18881 states and 24893 transitions. [2018-11-07 20:32:15,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:32:15,493 INFO L276 IsEmpty]: Start isEmpty. Operand 18881 states and 24893 transitions. [2018-11-07 20:32:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2018-11-07 20:32:15,506 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:32:15,507 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 20:32:15,507 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:32:15,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:15,508 INFO L82 PathProgramCache]: Analyzing trace with hash -280233488, now seen corresponding path program 1 times [2018-11-07 20:32:15,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:32:15,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:15,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:32:15,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:15,509 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:32:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:32:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 168 proven. 155 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 20:32:16,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:32:16,015 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:32:16,015 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 326 with the following transitions: [2018-11-07 20:32:16,016 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3015], [3017], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:32:16,021 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:32:16,021 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:32:16,482 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:32:16,482 INFO L272 AbstractInterpreter]: Visited 110 different actions 317 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:32:16,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:16,521 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:32:17,202 INFO L227 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 71.29% of their original sizes. [2018-11-07 20:32:17,202 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:32:19,491 INFO L415 sIntCurrentIteration]: We unified 324 AI predicates to 324 [2018-11-07 20:32:19,491 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:32:19,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:32:19,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 16 [2018-11-07 20:32:19,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:19,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:32:19,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:32:19,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:32:19,494 INFO L87 Difference]: Start difference. First operand 18881 states and 24893 transitions. Second operand 13 states. [2018-11-07 20:32:25,830 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:32:39,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 20:32:39,410 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:32:39,417 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:32:39,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:32:39 BoogieIcfgContainer [2018-11-07 20:32:39,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:32:39,419 INFO L168 Benchmark]: Toolchain (without parser) took 211685.48 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,420 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. [2018-11-07 20:32:39,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2552.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,421 INFO L168 Benchmark]: Boogie Procedure Inliner took 405.56 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,422 INFO L168 Benchmark]: Boogie Preprocessor took 269.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,423 INFO L168 Benchmark]: RCFGBuilder took 9614.82 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 158.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 29.2 MB). Peak memory consumption was 666.9 MB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,424 INFO L168 Benchmark]: TraceAbstraction took 198835.32 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 2.0 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -322.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 20:32:39,429 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 2552.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 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 405.56 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 818.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 269.97 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9614.82 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 158.3 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 29.2 MB). Peak memory consumption was 666.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198835.32 ms. Allocated memory was 2.5 GB in the beginning and 4.5 GB in the end (delta: 2.0 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -322.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 174]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 174). Cancelled while BasicCegarLoop was constructing difference of abstraction (18881states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (7625 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 198.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 185.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4673 SDtfs, 21459 SDslu, 3320 SDs, 0 SdLazy, 34946 SolverSat, 6511 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 90.5s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 889 GetRequests, 762 SyntacticMatches, 57 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18881occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9974770936042404 AbsIntWeakeningRatio, 0.10444177671068428 AbsIntAvgWeakeningVarsNumRemoved, 12.421368547418968 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 282 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1361 NumberOfCodeBlocks, 1361 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1354 ConstructedInterpolants, 0 QuantifiedInterpolants, 1018703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 620/943 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown