java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 11:17:53,617 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 11:17:53,619 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 11:17:53,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 11:17:53,631 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 11:17:53,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 11:17:53,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 11:17:53,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 11:17:53,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 11:17:53,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 11:17:53,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 11:17:53,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 11:17:53,640 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 11:17:53,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 11:17:53,647 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 11:17:53,648 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 11:17:53,651 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 11:17:53,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 11:17:53,662 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 11:17:53,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 11:17:53,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 11:17:53,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 11:17:53,671 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 11:17:53,671 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 11:17:53,672 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 11:17:53,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 11:17:53,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 11:17:53,674 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 11:17:53,675 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 11:17:53,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 11:17:53,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 11:17:53,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 11:17:53,678 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 11:17:53,678 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 11:17:53,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 11:17:53,680 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 11:17:53,680 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 11:17:53,696 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 11:17:53,696 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 11:17:53,697 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 11:17:53,697 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 11:17:53,698 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 11:17:53,698 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 11:17:53,698 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 11:17:53,698 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 11:17:53,699 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 11:17:53,699 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 11:17:53,699 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 11:17:53,699 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 11:17:53,700 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 11:17:53,700 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 11:17:53,700 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 11:17:53,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 11:17:53,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 11:17:53,701 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 11:17:53,701 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 11:17:53,701 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 11:17:53,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 11:17:53,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 11:17:53,702 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 11:17:53,702 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 11:17:53,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:17:53,703 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 11:17:53,703 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 11:17:53,703 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 11:17:53,703 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 11:17:53,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 11:17:53,704 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 11:17:53,704 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 11:17:53,704 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 11:17:53,704 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 11:17:53,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 11:17:53,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 11:17:53,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 11:17:53,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 11:17:53,792 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 11:17:53,793 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label30_false-unreach-call.c [2018-10-27 11:17:53,871 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2417ae0ff/c07dbb18e7a04c2981249c6a66ed85ba/FLAGa064153e2 [2018-10-27 11:17:54,637 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 11:17:54,638 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label30_false-unreach-call.c [2018-10-27 11:17:54,669 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2417ae0ff/c07dbb18e7a04c2981249c6a66ed85ba/FLAGa064153e2 [2018-10-27 11:17:54,690 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2417ae0ff/c07dbb18e7a04c2981249c6a66ed85ba [2018-10-27 11:17:54,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 11:17:54,703 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 11:17:54,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 11:17:54,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 11:17:54,709 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 11:17:54,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:17:54" (1/1) ... [2018-10-27 11:17:54,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4569e7cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:54, skipping insertion in model container [2018-10-27 11:17:54,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 11:17:54" (1/1) ... [2018-10-27 11:17:54,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 11:17:54,913 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 11:17:56,451 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:17:56,456 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 11:17:57,038 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 11:17:57,075 INFO L193 MainTranslator]: Completed translation [2018-10-27 11:17:57,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57 WrapperNode [2018-10-27 11:17:57,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 11:17:57,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 11:17:57,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 11:17:57,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 11:17:57,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 11:17:57,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 11:17:57,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 11:17:57,598 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 11:17:57,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... [2018-10-27 11:17:57,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 11:17:57,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 11:17:57,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 11:17:57,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 11:17:57,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 11:17:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 11:17:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 11:17:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 11:17:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 11:17:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 11:17:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 11:17:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 11:17:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 11:17:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 11:17:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 11:17:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 11:17:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 11:17:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 11:17:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 11:18:09,984 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 11:18:09,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:18:09 BoogieIcfgContainer [2018-10-27 11:18:09,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 11:18:09,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 11:18:09,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 11:18:09,990 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 11:18:09,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 11:17:54" (1/3) ... [2018-10-27 11:18:09,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fcc25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:18:09, skipping insertion in model container [2018-10-27 11:18:09,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 11:17:57" (2/3) ... [2018-10-27 11:18:09,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fcc25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 11:18:09, skipping insertion in model container [2018-10-27 11:18:09,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 11:18:09" (3/3) ... [2018-10-27 11:18:09,994 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label30_false-unreach-call.c [2018-10-27 11:18:10,003 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 11:18:10,015 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 11:18:10,032 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 11:18:10,096 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 11:18:10,097 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 11:18:10,097 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 11:18:10,097 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 11:18:10,097 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 11:18:10,097 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 11:18:10,097 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 11:18:10,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 11:18:10,135 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-27 11:18:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-27 11:18:10,142 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:18:10,145 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] [2018-10-27 11:18:10,149 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:18:10,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:18:10,155 INFO L82 PathProgramCache]: Analyzing trace with hash -145223636, now seen corresponding path program 1 times [2018-10-27 11:18:10,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:18:10,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:10,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:18:10,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:10,213 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:18:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:18:10,625 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-27 11:18:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:18:10,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:18:10,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 11:18:10,642 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:18:10,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 11:18:10,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 11:18:10,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:18:10,671 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-10-27 11:18:22,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:18:22,962 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-10-27 11:18:22,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 11:18:22,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2018-10-27 11:18:22,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:18:23,014 INFO L225 Difference]: With dead ends: 3234 [2018-10-27 11:18:23,015 INFO L226 Difference]: Without dead ends: 2388 [2018-10-27 11:18:23,026 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 11:18:23,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-10-27 11:18:23,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-10-27 11:18:23,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-10-27 11:18:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3845 transitions. [2018-10-27 11:18:23,225 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3845 transitions. Word has length 32 [2018-10-27 11:18:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:18:23,226 INFO L481 AbstractCegarLoop]: Abstraction has 2388 states and 3845 transitions. [2018-10-27 11:18:23,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 11:18:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3845 transitions. [2018-10-27 11:18:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-10-27 11:18:23,236 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:18:23,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:18:23,237 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:18:23,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:18:23,237 INFO L82 PathProgramCache]: Analyzing trace with hash 552295319, now seen corresponding path program 1 times [2018-10-27 11:18:23,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:18:23,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:23,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:18:23,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:23,242 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:18:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:18:23,644 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:18:23,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:18:23,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 11:18:23,645 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:18:23,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:18:23,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:18:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:18:23,648 INFO L87 Difference]: Start difference. First operand 2388 states and 3845 transitions. Second operand 6 states. [2018-10-27 11:18:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:18:39,673 INFO L93 Difference]: Finished difference Result 9463 states and 15573 transitions. [2018-10-27 11:18:39,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:18:39,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-10-27 11:18:39,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:18:39,728 INFO L225 Difference]: With dead ends: 9463 [2018-10-27 11:18:39,729 INFO L226 Difference]: Without dead ends: 7081 [2018-10-27 11:18:39,743 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 11:18:39,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2018-10-27 11:18:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 7037. [2018-10-27 11:18:39,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7037 states. [2018-10-27 11:18:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7037 states to 7037 states and 10229 transitions. [2018-10-27 11:18:39,940 INFO L78 Accepts]: Start accepts. Automaton has 7037 states and 10229 transitions. Word has length 113 [2018-10-27 11:18:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:18:39,941 INFO L481 AbstractCegarLoop]: Abstraction has 7037 states and 10229 transitions. [2018-10-27 11:18:39,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 11:18:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7037 states and 10229 transitions. [2018-10-27 11:18:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-27 11:18:39,947 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:18:39,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:18:39,948 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:18:39,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:18:39,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1059149049, now seen corresponding path program 1 times [2018-10-27 11:18:39,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:18:39,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:39,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:18:39,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:39,950 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:18:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:18:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:18:40,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:18:40,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 11:18:40,151 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:18:40,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:18:40,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:18:40,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:18:40,153 INFO L87 Difference]: Start difference. First operand 7037 states and 10229 transitions. Second operand 6 states. [2018-10-27 11:18:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:18:51,181 INFO L93 Difference]: Finished difference Result 23489 states and 35291 transitions. [2018-10-27 11:18:51,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:18:51,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-10-27 11:18:51,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:18:51,272 INFO L225 Difference]: With dead ends: 23489 [2018-10-27 11:18:51,272 INFO L226 Difference]: Without dead ends: 16458 [2018-10-27 11:18:51,313 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 11:18:51,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16458 states. [2018-10-27 11:18:51,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16458 to 16369. [2018-10-27 11:18:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16369 states. [2018-10-27 11:18:51,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16369 states to 16369 states and 22454 transitions. [2018-10-27 11:18:51,721 INFO L78 Accepts]: Start accepts. Automaton has 16369 states and 22454 transitions. Word has length 121 [2018-10-27 11:18:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:18:51,722 INFO L481 AbstractCegarLoop]: Abstraction has 16369 states and 22454 transitions. [2018-10-27 11:18:51,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 11:18:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 16369 states and 22454 transitions. [2018-10-27 11:18:51,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-27 11:18:51,730 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:18:51,730 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 11:18:51,731 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:18:51,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:18:51,731 INFO L82 PathProgramCache]: Analyzing trace with hash -128929438, now seen corresponding path program 1 times [2018-10-27 11:18:51,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:18:51,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:51,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:18:51,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:18:51,735 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:18:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:18:52,052 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 11:18:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 11:18:52,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 11:18:52,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 11:18:52,136 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:18:52,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 11:18:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 11:18:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 11:18:52,139 INFO L87 Difference]: Start difference. First operand 16369 states and 22454 transitions. Second operand 6 states. [2018-10-27 11:19:05,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 11:19:05,833 INFO L93 Difference]: Finished difference Result 51805 states and 75181 transitions. [2018-10-27 11:19:05,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:19:05,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-10-27 11:19:05,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 11:19:05,979 INFO L225 Difference]: With dead ends: 51805 [2018-10-27 11:19:05,980 INFO L226 Difference]: Without dead ends: 35442 [2018-10-27 11:19:06,065 INFO L605 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 [2018-10-27 11:19:06,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35442 states. [2018-10-27 11:19:06,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35442 to 35319. [2018-10-27 11:19:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35319 states. [2018-10-27 11:19:06,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35319 states to 35319 states and 49477 transitions. [2018-10-27 11:19:06,841 INFO L78 Accepts]: Start accepts. Automaton has 35319 states and 49477 transitions. Word has length 146 [2018-10-27 11:19:06,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 11:19:06,841 INFO L481 AbstractCegarLoop]: Abstraction has 35319 states and 49477 transitions. [2018-10-27 11:19:06,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 11:19:06,842 INFO L276 IsEmpty]: Start isEmpty. Operand 35319 states and 49477 transitions. [2018-10-27 11:19:06,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-27 11:19:06,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 11:19:06,854 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 11:19:06,856 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 11:19:06,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:19:06,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1800636461, now seen corresponding path program 1 times [2018-10-27 11:19:06,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 11:19:06,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:19:06,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 11:19:06,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 11:19:06,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 11:19:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 11:19:07,164 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 11:19:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 50 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 11:19:07,595 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 11:19:07,596 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 11:19:07,597 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-27 11:19:07,599 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], [2023], [2025], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2480], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-27 11:19:07,669 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 11:19:07,669 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 11:19:08,177 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 11:19:08,179 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 11:19:08,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 11:19:08,235 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 11:19:08,740 INFO L227 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 75.25% of their original sizes. [2018-10-27 11:19:08,740 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 11:19:09,131 INFO L415 sIntCurrentIteration]: We unified 208 AI predicates to 208 [2018-10-27 11:19:09,132 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 11:19:09,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 11:19:09,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-27 11:19:09,133 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 11:19:09,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 11:19:09,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 11:19:09,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-27 11:19:09,134 INFO L87 Difference]: Start difference. First operand 35319 states and 49477 transitions. Second operand 7 states. [2018-10-27 11:19:12,633 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 11:22:06,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 11:22:06,713 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 11:22:06,719 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 11:22:06,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 11:22:06 BoogieIcfgContainer [2018-10-27 11:22:06,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 11:22:06,720 INFO L168 Benchmark]: Toolchain (without parser) took 252018.15 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-27 11:22:06,722 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 11:22:06,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2371.59 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. [2018-10-27 11:22:06,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 519.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 797.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2018-10-27 11:22:06,725 INFO L168 Benchmark]: Boogie Preprocessor took 339.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2018-10-27 11:22:06,726 INFO L168 Benchmark]: RCFGBuilder took 12048.94 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -187.5 MB). Peak memory consumption was 663.1 MB. Max. memory is 7.1 GB. [2018-10-27 11:22:06,727 INFO L168 Benchmark]: TraceAbstraction took 236733.29 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -23.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-27 11:22:06,733 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2371.59 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 519.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 797.4 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 339.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12048.94 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 183.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -187.5 MB). Peak memory consumption was 663.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236733.29 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -23.1 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: 87]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 87). Cancelled while BasicCegarLoop was constructing difference of abstraction (35319states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (10849 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 236.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 231.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 994 SDtfs, 15115 SDslu, 694 SDs, 0 SdLazy, 24533 SolverSat, 6694 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 214.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 246 GetRequests, 213 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35319occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975256853653593 AbsIntWeakeningRatio, 0.12980769230769232 AbsIntAvgWeakeningVarsNumRemoved, 19.14423076923077 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 256 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 616 ConstructedInterpolants, 0 QuantifiedInterpolants, 473246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 130/202 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown