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/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:44:41,487 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:44:41,489 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:44:41,501 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:44:41,502 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:44:41,503 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:44:41,504 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:44:41,506 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:44:41,509 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:44:41,513 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:44:41,514 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:44:41,514 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:44:41,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:44:41,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:44:41,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:44:41,523 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:44:41,524 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:44:41,529 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:44:41,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:44:41,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:44:41,538 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:44:41,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:44:41,544 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:44:41,545 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:44:41,545 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:44:41,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:44:41,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:44:41,550 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:44:41,554 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:44:41,555 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:44:41,555 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:44:41,557 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:44:41,557 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:44:41,558 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:44:41,559 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:44:41,559 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:44:41,561 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 18:44:41,590 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:44:41,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:44:41,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:44:41,593 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:44:41,593 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:44:41,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:44:41,593 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:44:41,594 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:44:41,594 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:44:41,594 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:44:41,594 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:44:41,594 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:44:41,595 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:44:41,596 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:44:41,596 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:44:41,596 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:44:41,596 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:44:41,598 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:44:41,598 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:44:41,599 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:44:41,599 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:44:41,599 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:44:41,599 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:44:41,600 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:44:41,600 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:44:41,600 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:44:41,600 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:44:41,600 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:44:41,601 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:44:41,601 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:44:41,602 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:44:41,602 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:44:41,602 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:44:41,602 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:44:41,602 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:44:41,655 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:44:41,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:44:41,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:44:41,676 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:44:41,676 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:44:41,677 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-11-12 18:44:41,747 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba3679f4/35e827ea0a784ff0a3d1d67786f108b4/FLAG7eec65251 [2018-11-12 18:44:42,555 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:44:42,556 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-11-12 18:44:42,584 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba3679f4/35e827ea0a784ff0a3d1d67786f108b4/FLAG7eec65251 [2018-11-12 18:44:42,600 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba3679f4/35e827ea0a784ff0a3d1d67786f108b4 [2018-11-12 18:44:42,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:44:42,614 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:44:42,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:44:42,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:44:42,619 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:44:42,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:42" (1/1) ... [2018-11-12 18:44:42,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495f9b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:42, skipping insertion in model container [2018-11-12 18:44:42,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:42" (1/1) ... [2018-11-12 18:44:42,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:44:42,795 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:44:44,322 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:44:44,333 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:44:44,954 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:44:44,991 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:44:44,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44 WrapperNode [2018-11-12 18:44:44,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:44:44,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:44:44,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:44:44,993 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:44:45,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:44:45,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:44:45,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:44:45,350 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:44:45,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (1/1) ... [2018-11-12 18:44:45,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:44:45,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:44:45,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:44:45,602 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:44:45,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (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 18:44:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:44:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:44:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:44:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:44:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:44:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:44:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:44:45,672 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:44:45,672 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:44:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:44:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:44:45,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:44:45,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:44:45,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:44:45,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:44:54,767 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:44:54,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:54 BoogieIcfgContainer [2018-11-12 18:44:54,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:44:54,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:44:54,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:44:54,773 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:44:54,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:44:42" (1/3) ... [2018-11-12 18:44:54,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8efeb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:54, skipping insertion in model container [2018-11-12 18:44:54,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:44" (2/3) ... [2018-11-12 18:44:54,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8efeb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:54, skipping insertion in model container [2018-11-12 18:44:54,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:54" (3/3) ... [2018-11-12 18:44:54,777 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-11-12 18:44:54,788 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:44:54,798 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:44:54,918 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:44:54,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:44:54,977 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:44:54,977 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:44:54,977 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:44:54,978 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:44:54,978 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:44:54,978 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:44:54,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:44:55,032 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-12 18:44:55,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-12 18:44:55,043 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:44:55,044 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, 1, 1, 1, 1, 1, 1] [2018-11-12 18:44:55,047 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:44:55,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:44:55,053 INFO L82 PathProgramCache]: Analyzing trace with hash -629755477, now seen corresponding path program 1 times [2018-11-12 18:44:55,056 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:44:55,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:55,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:44:55,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:55,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:44:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:44:55,547 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:44:55,670 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 18:44:55,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:44:55,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:44:55,674 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:44:55,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:44:55,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:44:55,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:44:55,702 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-12 18:45:03,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:45:03,665 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-12 18:45:03,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:45:03,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-11-12 18:45:03,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:45:03,718 INFO L225 Difference]: With dead ends: 2446 [2018-11-12 18:45:03,719 INFO L226 Difference]: Without dead ends: 1604 [2018-11-12 18:45:03,734 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 18:45:03,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-12 18:45:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-12 18:45:03,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-12 18:45:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-11-12 18:45:03,907 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 67 [2018-11-12 18:45:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:45:03,908 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-11-12 18:45:03,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:45:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-11-12 18:45:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-12 18:45:03,918 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:45:03,918 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, 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] [2018-11-12 18:45:03,919 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:45:03,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1436302644, now seen corresponding path program 1 times [2018-11-12 18:45:03,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:45:03,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:03,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:45:03,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:03,922 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:45:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:45:04,280 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:45:04,573 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:45:04,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:45:04,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:45:04,574 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:45:04,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:45:04,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:45:04,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:45:04,577 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-11-12 18:45:17,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:45:17,143 INFO L93 Difference]: Finished difference Result 6330 states and 12128 transitions. [2018-11-12 18:45:17,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:45:17,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-11-12 18:45:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:45:17,186 INFO L225 Difference]: With dead ends: 6330 [2018-11-12 18:45:17,186 INFO L226 Difference]: Without dead ends: 4732 [2018-11-12 18:45:17,197 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 18:45:17,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2018-11-12 18:45:17,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4700. [2018-11-12 18:45:17,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4700 states. [2018-11-12 18:45:17,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 7674 transitions. [2018-11-12 18:45:17,341 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 7674 transitions. Word has length 145 [2018-11-12 18:45:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:45:17,342 INFO L480 AbstractCegarLoop]: Abstraction has 4700 states and 7674 transitions. [2018-11-12 18:45:17,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:45:17,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 7674 transitions. [2018-11-12 18:45:17,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-12 18:45:17,348 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:45:17,348 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, 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] [2018-11-12 18:45:17,349 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:45:17,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:17,349 INFO L82 PathProgramCache]: Analyzing trace with hash -659539728, now seen corresponding path program 1 times [2018-11-12 18:45:17,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:45:17,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:17,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:45:17,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:17,351 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:45:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:45:17,563 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:45:17,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:45:17,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 18:45:17,563 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:45:17,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 18:45:17,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 18:45:17,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-12 18:45:17,565 INFO L87 Difference]: Start difference. First operand 4700 states and 7674 transitions. Second operand 5 states. [2018-11-12 18:45:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:45:25,386 INFO L93 Difference]: Finished difference Result 14303 states and 23676 transitions. [2018-11-12 18:45:25,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 18:45:25,394 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-11-12 18:45:25,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:45:25,449 INFO L225 Difference]: With dead ends: 14303 [2018-11-12 18:45:25,450 INFO L226 Difference]: Without dead ends: 9609 [2018-11-12 18:45:25,463 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:45:25,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2018-11-12 18:45:25,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 9527. [2018-11-12 18:45:25,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9527 states. [2018-11-12 18:45:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9527 states to 9527 states and 14359 transitions. [2018-11-12 18:45:25,727 INFO L78 Accepts]: Start accepts. Automaton has 9527 states and 14359 transitions. Word has length 147 [2018-11-12 18:45:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:45:25,727 INFO L480 AbstractCegarLoop]: Abstraction has 9527 states and 14359 transitions. [2018-11-12 18:45:25,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 18:45:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 9527 states and 14359 transitions. [2018-11-12 18:45:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-11-12 18:45:25,731 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:45:25,731 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, 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] [2018-11-12 18:45:25,732 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:45:25,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash -731114027, now seen corresponding path program 1 times [2018-11-12 18:45:25,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:45:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:25,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:45:25,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:25,734 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:45:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:45:25,964 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:45:25,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:45:25,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:45:25,965 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:45:25,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:45:25,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:45:25,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:45:25,966 INFO L87 Difference]: Start difference. First operand 9527 states and 14359 transitions. Second operand 6 states. [2018-11-12 18:45:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:45:39,005 INFO L93 Difference]: Finished difference Result 38051 states and 60894 transitions. [2018-11-12 18:45:39,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:45:39,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-11-12 18:45:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:45:39,152 INFO L225 Difference]: With dead ends: 38051 [2018-11-12 18:45:39,152 INFO L226 Difference]: Without dead ends: 28530 [2018-11-12 18:45:39,223 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-12 18:45:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28530 states. [2018-11-12 18:45:39,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28530 to 28478. [2018-11-12 18:45:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28478 states. [2018-11-12 18:45:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28478 states to 28478 states and 41531 transitions. [2018-11-12 18:45:39,978 INFO L78 Accepts]: Start accepts. Automaton has 28478 states and 41531 transitions. Word has length 158 [2018-11-12 18:45:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:45:39,979 INFO L480 AbstractCegarLoop]: Abstraction has 28478 states and 41531 transitions. [2018-11-12 18:45:39,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:45:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 28478 states and 41531 transitions. [2018-11-12 18:45:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-12 18:45:39,984 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:45:39,986 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, 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] [2018-11-12 18:45:39,986 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:45:39,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:39,986 INFO L82 PathProgramCache]: Analyzing trace with hash -90858887, now seen corresponding path program 1 times [2018-11-12 18:45:39,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:45:39,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:39,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:45:39,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:39,989 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:45:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:45:40,296 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:45:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:45:40,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:45:40,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:45:40,721 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:45:40,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:45:40,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:45:40,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:45:40,722 INFO L87 Difference]: Start difference. First operand 28478 states and 41531 transitions. Second operand 6 states. [2018-11-12 18:45:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:45:50,636 INFO L93 Difference]: Finished difference Result 76099 states and 117787 transitions. [2018-11-12 18:45:50,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:45:50,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-11-12 18:45:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:45:50,847 INFO L225 Difference]: With dead ends: 76099 [2018-11-12 18:45:50,848 INFO L226 Difference]: Without dead ends: 47627 [2018-11-12 18:45:50,960 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 18:45:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47627 states. [2018-11-12 18:45:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47627 to 47440. [2018-11-12 18:45:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47440 states. [2018-11-12 18:45:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47440 states to 47440 states and 66607 transitions. [2018-11-12 18:45:52,456 INFO L78 Accepts]: Start accepts. Automaton has 47440 states and 66607 transitions. Word has length 192 [2018-11-12 18:45:52,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:45:52,456 INFO L480 AbstractCegarLoop]: Abstraction has 47440 states and 66607 transitions. [2018-11-12 18:45:52,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:45:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand 47440 states and 66607 transitions. [2018-11-12 18:45:52,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-11-12 18:45:52,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:45:52,473 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:45:52,473 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:45:52,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:52,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1240874338, now seen corresponding path program 1 times [2018-11-12 18:45:52,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:45:52,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:52,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:45:52,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:45:52,475 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:45:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:45:52,769 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:45:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 18:45:53,192 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:45:53,192 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:45:53,193 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-11-12 18:45:53,196 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2400], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2516], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:45:53,246 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:45:53,247 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:45:53,951 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:45:53,953 INFO L272 AbstractInterpreter]: Visited 114 different actions 114 times. Never merged. Never widened. Performed 1147 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 18:45:54,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:45:54,008 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:45:54,645 INFO L227 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 75.75% of their original sizes. [2018-11-12 18:45:54,646 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:45:55,152 INFO L415 sIntCurrentIteration]: We unified 255 AI predicates to 255 [2018-11-12 18:45:55,152 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:45:55,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:45:55,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-12 18:45:55,154 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:45:55,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 18:45:55,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 18:45:55,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:45:55,155 INFO L87 Difference]: Start difference. First operand 47440 states and 66607 transitions. Second operand 8 states. [2018-11-12 18:46:03,262 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:46:50,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:46:50,018 INFO L93 Difference]: Finished difference Result 95644 states and 134118 transitions. [2018-11-12 18:46:50,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:46:50,019 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 256 [2018-11-12 18:46:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:46:50,220 INFO L225 Difference]: With dead ends: 95644 [2018-11-12 18:46:50,220 INFO L226 Difference]: Without dead ends: 48210 [2018-11-12 18:46:50,341 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 257 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 18:46:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48210 states. [2018-11-12 18:46:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48210 to 48208. [2018-11-12 18:46:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48208 states. [2018-11-12 18:46:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48208 states to 48208 states and 67386 transitions. [2018-11-12 18:46:51,456 INFO L78 Accepts]: Start accepts. Automaton has 48208 states and 67386 transitions. Word has length 256 [2018-11-12 18:46:51,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:46:51,457 INFO L480 AbstractCegarLoop]: Abstraction has 48208 states and 67386 transitions. [2018-11-12 18:46:51,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 18:46:51,457 INFO L276 IsEmpty]: Start isEmpty. Operand 48208 states and 67386 transitions. [2018-11-12 18:46:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-11-12 18:46:51,473 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:46:51,473 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:46:51,474 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:46:51,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:46:51,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1231181236, now seen corresponding path program 1 times [2018-11-12 18:46:51,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:46:51,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:51,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:46:51,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:51,476 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:46:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:47:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:47:02,114 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:47:02,114 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:47:02,114 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 305 with the following transitions: [2018-11-12 18:47:02,115 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2444], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:47:02,124 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:47:02,124 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:47:02,459 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:47:02,897 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:47:02,898 INFO L272 AbstractInterpreter]: Visited 154 different actions 304 times. Merged at 5 different actions 7 times. Never widened. Performed 5565 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5565 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 18:47:02,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:47:02,934 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:47:03,763 INFO L227 lantSequenceWeakener]: Weakened 78 states. On average, predicates are now at 78.07% of their original sizes. [2018-11-12 18:47:03,763 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:47:05,383 INFO L415 sIntCurrentIteration]: We unified 303 AI predicates to 303 [2018-11-12 18:47:05,383 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:47:05,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:47:05,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-12 18:47:05,384 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:47:05,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 18:47:05,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 18:47:05,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-12 18:47:05,386 INFO L87 Difference]: Start difference. First operand 48208 states and 67386 transitions. Second operand 20 states. Received shutdown request... [2018-11-12 18:48:09,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-12 18:48:09,261 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:48:09,266 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:48:09,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:48:09 BoogieIcfgContainer [2018-11-12 18:48:09,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:48:09,267 INFO L168 Benchmark]: Toolchain (without parser) took 206654.92 ms. Allocated memory was 1.5 GB in the beginning and 5.8 GB in the end (delta: 4.3 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -70.4 MB). Peak memory consumption was 4.2 GB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,268 INFO L168 Benchmark]: CDTParser took 0.26 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 18:48:09,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2377.35 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 356.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,271 INFO L168 Benchmark]: Boogie Preprocessor took 251.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,271 INFO L168 Benchmark]: RCFGBuilder took 9166.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.3 MB). Peak memory consumption was 650.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,272 INFO L168 Benchmark]: TraceAbstraction took 194496.76 ms. Allocated memory was 2.3 GB in the beginning and 5.8 GB in the end (delta: 3.5 GB). Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 105.7 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-11-12 18:48:09,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 2377.35 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 356.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 251.56 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9166.84 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 650.3 MB). Peak memory consumption was 650.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194496.76 ms. Allocated memory was 2.3 GB in the beginning and 5.8 GB in the end (delta: 3.5 GB). Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 105.7 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (48208states) and FLOYD_HOARE automaton (currently 18 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (52466 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 194.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 171.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2173 SDtfs, 21563 SDslu, 1802 SDs, 0 SdLazy, 41126 SolverSat, 6029 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 611 GetRequests, 547 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48208occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9978783510655879 AbsIntWeakeningRatio, 0.0967741935483871 AbsIntAvgWeakeningVarsNumRemoved, 19.440860215053764 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 355 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 13.1s InterpolantComputationTime, 1269 NumberOfCodeBlocks, 1269 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1262 ConstructedInterpolants, 0 QuantifiedInterpolants, 929444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 574/651 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown