java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:03:55,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:03:55,612 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:03:55,624 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:03:55,625 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:03:55,626 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:03:55,627 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:03:55,629 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:03:55,630 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:03:55,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:03:55,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:03:55,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:03:55,633 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:03:55,634 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:03:55,635 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:03:55,636 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:03:55,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:03:55,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:03:55,641 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:03:55,642 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:03:55,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:03:55,644 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:03:55,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:03:55,647 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:03:55,647 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:03:55,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:03:55,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:03:55,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:03:55,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:03:55,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:03:55,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:03:55,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:03:55,653 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:03:55,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:03:55,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:03:55,655 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:03:55,655 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:03:55,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:03:55,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:03:55,672 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:03:55,672 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:03:55,672 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:03:55,672 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:03:55,672 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:03:55,673 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:03:55,673 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:03:55,673 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:03:55,673 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:03:55,673 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:03:55,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:03:55,674 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:03:55,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:03:55,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:03:55,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:03:55,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:03:55,675 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:03:55,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:03:55,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:03:55,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:03:55,676 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:03:55,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:03:55,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:03:55,677 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:03:55,677 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:03:55,677 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:03:55,677 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:03:55,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:03:55,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:03:55,678 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:03:55,678 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:03:55,678 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:03:55,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:03:55,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:03:55,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:03:55,748 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:03:55,749 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:03:55,749 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-10-24 21:03:55,816 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c8b8f5dde/c20ed826e8b44f858227c6e0ca27075d/FLAGdaacf20eb [2018-10-24 21:03:56,372 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:03:56,373 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label56_true-unreach-call.c [2018-10-24 21:03:56,393 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c8b8f5dde/c20ed826e8b44f858227c6e0ca27075d/FLAGdaacf20eb [2018-10-24 21:03:56,411 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c8b8f5dde/c20ed826e8b44f858227c6e0ca27075d [2018-10-24 21:03:56,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:03:56,426 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:03:56,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:03:56,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:03:56,434 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:03:56,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:03:56" (1/1) ... [2018-10-24 21:03:56,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a03468d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:56, skipping insertion in model container [2018-10-24 21:03:56,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:03:56" (1/1) ... [2018-10-24 21:03:56,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:03:56,521 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:03:56,915 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:03:56,920 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:03:57,048 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:03:57,064 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:03:57,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57 WrapperNode [2018-10-24 21:03:57,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:03:57,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:03:57,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:03:57,067 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:03:57,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:03:57,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:03:57,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:03:57,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:03:57,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (1/1) ... [2018-10-24 21:03:57,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:03:57,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:03:57,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:03:57,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:03:57,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (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 [2018-10-24 21:03:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:03:57,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:03:57,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:03:57,433 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:03:57,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:03:57,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:03:57,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:03:57,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:04:00,615 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:04:00,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:04:00 BoogieIcfgContainer [2018-10-24 21:04:00,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:04:00,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:04:00,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:04:00,620 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:04:00,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:03:56" (1/3) ... [2018-10-24 21:04:00,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305416c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:04:00, skipping insertion in model container [2018-10-24 21:04:00,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:57" (2/3) ... [2018-10-24 21:04:00,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305416c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:04:00, skipping insertion in model container [2018-10-24 21:04:00,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:04:00" (3/3) ... [2018-10-24 21:04:00,624 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label56_true-unreach-call.c [2018-10-24 21:04:00,632 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:04:00,641 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:04:00,658 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:04:00,696 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:04:00,697 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:04:00,697 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:04:00,697 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:04:00,697 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:04:00,698 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:04:00,698 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:04:00,698 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:04:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 21:04:00,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-24 21:04:00,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:04:00,734 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] [2018-10-24 21:04:00,741 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:04:00,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:04:00,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1189398212, now seen corresponding path program 1 times [2018-10-24 21:04:00,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:04:00,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:00,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:04:00,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:00,804 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:04:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:04:01,220 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:04:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:04:01,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:04:01,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:04:01,341 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:04:01,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:04:01,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:04:01,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:04:01,368 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 21:04:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:04:03,686 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 21:04:03,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:04:03,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-10-24 21:04:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:04:03,708 INFO L225 Difference]: With dead ends: 574 [2018-10-24 21:04:03,708 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 21:04:03,716 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:04:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 21:04:03,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 21:04:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 21:04:03,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-24 21:04:03,796 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 30 [2018-10-24 21:04:03,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:04:03,796 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-24 21:04:03,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:04:03,797 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-24 21:04:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-24 21:04:03,803 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:04:03,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:04:03,804 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:04:03,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:04:03,804 INFO L82 PathProgramCache]: Analyzing trace with hash 536301288, now seen corresponding path program 1 times [2018-10-24 21:04:03,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:04:03,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:03,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:04:03,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:03,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:04:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:04:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 21:04:04,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:04:04,161 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:04:04,162 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-10-24 21:04:04,165 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:04:04,256 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:04:04,257 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:04:06,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:04:06,952 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:04:06,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:04:06,964 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:04:09,070 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.76% of their original sizes. [2018-10-24 21:04:09,071 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:04:13,190 INFO L413 sIntCurrentIteration]: We have 117 unified AI predicates [2018-10-24 21:04:13,190 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:04:13,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:04:13,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-24 21:04:13,191 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:04:13,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 21:04:13,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 21:04:13,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:04:13,194 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-24 21:04:24,792 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:05:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:05:06,946 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-24 21:05:06,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:05:06,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 118 [2018-10-24 21:05:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:05:06,950 INFO L225 Difference]: With dead ends: 855 [2018-10-24 21:05:06,950 INFO L226 Difference]: Without dead ends: 505 [2018-10-24 21:05:06,956 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 121 GetRequests, 92 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-24 21:05:06,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-24 21:05:07,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-24 21:05:07,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-24 21:05:07,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-24 21:05:07,008 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 118 [2018-10-24 21:05:07,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:05:07,008 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-24 21:05:07,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 21:05:07,009 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-24 21:05:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-24 21:05:07,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:05:07,013 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:05:07,014 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:05:07,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:05:07,014 INFO L82 PathProgramCache]: Analyzing trace with hash -524938665, now seen corresponding path program 1 times [2018-10-24 21:05:07,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:05:07,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:05:07,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:05:07,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:05:07,016 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:05:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:05:07,394 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 21:05:07,394 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:05:07,394 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:05:07,395 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-10-24 21:05:07,395 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:05:07,400 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:05:07,400 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:05:08,609 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:05:19,131 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:05:19,131 INFO L272 AbstractInterpreter]: Visited 96 different actions 546 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:05:19,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:05:19,142 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:05:20,997 INFO L232 lantSequenceWeakener]: Weakened 103 states. On average, predicates are now at 73.76% of their original sizes. [2018-10-24 21:05:20,997 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:05:32,358 INFO L413 sIntCurrentIteration]: We have 188 unified AI predicates [2018-10-24 21:05:32,358 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:05:32,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:05:32,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 19 [2018-10-24 21:05:32,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:05:32,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 21:05:32,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 21:05:32,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2018-10-24 21:05:32,360 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 17 states. [2018-10-24 21:07:16,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:07:16,263 INFO L93 Difference]: Finished difference Result 1309 states and 2189 transitions. [2018-10-24 21:07:16,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 21:07:16,263 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 189 [2018-10-24 21:07:16,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:07:16,269 INFO L225 Difference]: With dead ends: 1309 [2018-10-24 21:07:16,269 INFO L226 Difference]: Without dead ends: 959 [2018-10-24 21:07:16,272 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 156 SyntacticMatches, 17 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2018-10-24 21:07:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2018-10-24 21:07:16,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 872. [2018-10-24 21:07:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2018-10-24 21:07:16,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1166 transitions. [2018-10-24 21:07:16,359 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1166 transitions. Word has length 189 [2018-10-24 21:07:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:07:16,360 INFO L481 AbstractCegarLoop]: Abstraction has 872 states and 1166 transitions. [2018-10-24 21:07:16,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-24 21:07:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1166 transitions. [2018-10-24 21:07:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-10-24 21:07:16,365 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:07:16,365 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:07:16,365 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:07:16,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:07:16,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1669427612, now seen corresponding path program 1 times [2018-10-24 21:07:16,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:07:16,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:07:16,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:07:16,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:07:16,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:07:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:07:16,665 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:07:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 21:07:17,604 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:07:17,604 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:07:17,604 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2018-10-24 21:07:17,605 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [141], [143], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:07:17,609 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:07:17,609 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:07:19,180 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:07:50,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:07:50,481 INFO L272 AbstractInterpreter]: Visited 96 different actions 561 times. Merged at 7 different actions 40 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:07:50,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:07:50,485 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:07:52,512 INFO L232 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 82.95% of their original sizes. [2018-10-24 21:07:52,512 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 21:07:55,949 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:07:55,953 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:07:55,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:07:55 BoogieIcfgContainer [2018-10-24 21:07:55,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:07:55,954 INFO L168 Benchmark]: Toolchain (without parser) took 239529.63 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 872.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,955 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:07:55,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 180.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -826.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,958 INFO L168 Benchmark]: Boogie Preprocessor took 107.35 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,959 INFO L168 Benchmark]: RCFGBuilder took 3261.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,960 INFO L168 Benchmark]: TraceAbstraction took 235336.55 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 784.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:55,968 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 638.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 180.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -826.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.35 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3261.62 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 117.9 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235336.55 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 784.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 73). Cancelled while BasicCegarLoop was analyzing trace of length 199 with TraceHistMax 3,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 235.2s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 160.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 3049 SDslu, 380 SDs, 0 SdLazy, 2372 SolverSat, 664 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 322 GetRequests, 250 SyntacticMatches, 36 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 17.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=872occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 47.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.993630550262717 AbsIntWeakeningRatio, 0.14342629482071714 AbsIntAvgWeakeningVarsNumRemoved, 240.4382470119522 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 92 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 159769 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/140 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown