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/Problem14_label55_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:43:39,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:43:39,602 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:43:39,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:43:39,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:43:39,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:43:39,623 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:43:39,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:43:39,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:43:39,627 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:43:39,628 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:43:39,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:43:39,629 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:43:39,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:43:39,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:43:39,632 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:43:39,633 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:43:39,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:43:39,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:43:39,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:43:39,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:43:39,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:43:39,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:43:39,653 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 21:43:39,683 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:43:39,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:43:39,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:43:39,685 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:43:39,685 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:43:39,686 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:43:39,686 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:43:39,686 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:43:39,686 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:43:39,686 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:43:39,687 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:43:39,687 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:43:39,687 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:43:39,692 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:43:39,692 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:43:39,696 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:43:39,696 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:43:39,696 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:43:39,696 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:43:39,697 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:43:39,698 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:43:39,698 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:43:39,699 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:43:39,699 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:43:39,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:43:39,699 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:43:39,699 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:43:39,700 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:43:39,700 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:43:39,700 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:43:39,700 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:43:39,700 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:43:39,701 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:43:39,701 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:43:39,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:43:39,786 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:43:39,790 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:43:39,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:43:39,793 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:43:39,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-10-24 21:43:39,863 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4572d4595/d1c6d223790849838115e607f3f6b0c7/FLAG618c924bd [2018-10-24 21:43:40,507 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:43:40,508 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label55_true-unreach-call_false-termination.c [2018-10-24 21:43:40,526 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4572d4595/d1c6d223790849838115e607f3f6b0c7/FLAG618c924bd [2018-10-24 21:43:40,542 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4572d4595/d1c6d223790849838115e607f3f6b0c7 [2018-10-24 21:43:40,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:43:40,557 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:43:40,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:43:40,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:43:40,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:43:40,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:43:40" (1/1) ... [2018-10-24 21:43:40,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:40, skipping insertion in model container [2018-10-24 21:43:40,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:43:40" (1/1) ... [2018-10-24 21:43:40,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:43:40,655 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:43:41,113 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:43:41,124 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:43:41,279 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:43:41,298 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:43:41,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41 WrapperNode [2018-10-24 21:43:41,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:43:41,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:43:41,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:43:41,300 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:43:41,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:43:41,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:43:41,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:43:41,551 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:43:41,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,626 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (1/1) ... [2018-10-24 21:43:41,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:43:41,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:43:41,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:43:41,649 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:43:41,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (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 21:43:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:43:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:43:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:43:41,736 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:43:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:43:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:43:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:43:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:43:45,409 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:43:45,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:43:45 BoogieIcfgContainer [2018-10-24 21:43:45,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:43:45,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:43:45,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:43:45,416 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:43:45,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:43:40" (1/3) ... [2018-10-24 21:43:45,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edb8343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:43:45, skipping insertion in model container [2018-10-24 21:43:45,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:43:41" (2/3) ... [2018-10-24 21:43:45,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edb8343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:43:45, skipping insertion in model container [2018-10-24 21:43:45,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:43:45" (3/3) ... [2018-10-24 21:43:45,420 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label55_true-unreach-call_false-termination.c [2018-10-24 21:43:45,428 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:43:45,438 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:43:45,456 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:43:45,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:43:45,496 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:43:45,496 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:43:45,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:43:45,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:43:45,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:43:45,497 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:43:45,497 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:43:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 21:43:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-24 21:43:45,546 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:43:45,547 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:43:45,550 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:43:45,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:43:45,556 INFO L82 PathProgramCache]: Analyzing trace with hash -353931284, now seen corresponding path program 1 times [2018-10-24 21:43:45,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:43:45,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:45,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:43:45,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:45,606 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:43:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:43:46,042 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 21:43:46,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:43:46,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:43:46,045 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:43:46,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:43:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:43:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:43:46,073 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-10-24 21:43:49,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:43:49,120 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-10-24 21:43:49,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:43:49,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2018-10-24 21:43:49,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:43:49,148 INFO L225 Difference]: With dead ends: 894 [2018-10-24 21:43:49,148 INFO L226 Difference]: Without dead ends: 633 [2018-10-24 21:43:49,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:43:49,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-10-24 21:43:49,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-10-24 21:43:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-10-24 21:43:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 1007 transitions. [2018-10-24 21:43:49,256 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 1007 transitions. Word has length 64 [2018-10-24 21:43:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:43:49,257 INFO L481 AbstractCegarLoop]: Abstraction has 633 states and 1007 transitions. [2018-10-24 21:43:49,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:43:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 1007 transitions. [2018-10-24 21:43:49,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-24 21:43:49,278 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:43:49,279 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:43:49,279 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:43:49,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:43:49,281 INFO L82 PathProgramCache]: Analyzing trace with hash 835688739, now seen corresponding path program 1 times [2018-10-24 21:43:49,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:43:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:49,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:43:49,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:49,284 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:43:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:43:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:43:49,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:43:49,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:43:49,588 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:43:49,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:43:49,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:43:49,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:43:49,591 INFO L87 Difference]: Start difference. First operand 633 states and 1007 transitions. Second operand 4 states. [2018-10-24 21:43:52,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:43:52,801 INFO L93 Difference]: Finished difference Result 2358 states and 3926 transitions. [2018-10-24 21:43:52,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:43:52,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-10-24 21:43:52,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:43:52,819 INFO L225 Difference]: With dead ends: 2358 [2018-10-24 21:43:52,820 INFO L226 Difference]: Without dead ends: 1731 [2018-10-24 21:43:52,826 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:43:52,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-10-24 21:43:52,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-10-24 21:43:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-10-24 21:43:52,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2621 transitions. [2018-10-24 21:43:52,918 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2621 transitions. Word has length 177 [2018-10-24 21:43:52,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:43:52,919 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2621 transitions. [2018-10-24 21:43:52,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:43:52,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2621 transitions. [2018-10-24 21:43:52,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-24 21:43:52,936 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:43:52,936 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2018-10-24 21:43:52,936 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:43:52,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:43:52,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1405952572, now seen corresponding path program 1 times [2018-10-24 21:43:52,937 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:43:52,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:52,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:43:52,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:43:52,939 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:43:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:43:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:43:53,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:43:53,554 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:43:53,557 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-10-24 21:43:53,559 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:43:53,654 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:43:53,655 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:43:55,877 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:43:55,879 INFO L272 AbstractInterpreter]: Visited 117 different actions 117 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:43:55,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:43:55,900 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:43:58,098 INFO L232 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 78.18% of their original sizes. [2018-10-24 21:43:58,099 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:43:58,300 INFO L413 sIntCurrentIteration]: We have 259 unified AI predicates [2018-10-24 21:43:58,301 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:43:58,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:43:58,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:43:58,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:43:58,307 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:43:58,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:43:58,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:43:58,312 INFO L87 Difference]: Start difference. First operand 1731 states and 2621 transitions. Second operand 7 states. [2018-10-24 21:44:00,495 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:44:24,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:44:24,891 INFO L93 Difference]: Finished difference Result 3641 states and 5476 transitions. [2018-10-24 21:44:24,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:44:24,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2018-10-24 21:44:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:44:24,903 INFO L225 Difference]: With dead ends: 3641 [2018-10-24 21:44:24,903 INFO L226 Difference]: Without dead ends: 1916 [2018-10-24 21:44:24,909 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:44:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-10-24 21:44:25,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2018-10-24 21:44:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-10-24 21:44:25,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2811 transitions. [2018-10-24 21:44:25,061 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2811 transitions. Word has length 260 [2018-10-24 21:44:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:44:25,061 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2811 transitions. [2018-10-24 21:44:25,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:44:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2811 transitions. [2018-10-24 21:44:25,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-10-24 21:44:25,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:44:25,072 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 21:44:25,073 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:44:25,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:44:25,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1712998387, now seen corresponding path program 1 times [2018-10-24 21:44:25,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:44:25,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:44:25,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:44:25,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:44:25,075 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:44:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:44:25,647 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:44:25,846 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:44:26,062 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 21:44:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 258 proven. 161 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:44:26,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:44:26,542 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:44:26,542 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 346 with the following transitions: [2018-10-24 21:44:26,543 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [413], [415], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [662], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 21:44:26,549 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:44:26,549 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:44:30,139 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:44:30,139 INFO L272 AbstractInterpreter]: Visited 121 different actions 235 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:44:30,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:44:30,146 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:44:32,809 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 78.05% of their original sizes. [2018-10-24 21:44:32,810 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:44:54,865 INFO L413 sIntCurrentIteration]: We have 344 unified AI predicates [2018-10-24 21:44:54,865 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:44:54,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:44:54,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2018-10-24 21:44:54,866 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:44:54,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 21:44:54,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 21:44:54,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-10-24 21:44:54,867 INFO L87 Difference]: Start difference. First operand 1914 states and 2811 transitions. Second operand 18 states. [2018-10-24 21:46:09,465 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:47:46,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 21:47:46,506 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:47:46,511 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:47:46,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:47:46 BoogieIcfgContainer [2018-10-24 21:47:46,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:47:46,512 INFO L168 Benchmark]: Toolchain (without parser) took 245956.47 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 597.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,514 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:47:46,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 251.42 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 702.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -797.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,516 INFO L168 Benchmark]: Boogie Preprocessor took 97.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,517 INFO L168 Benchmark]: RCFGBuilder took 3762.55 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 134.6 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,518 INFO L168 Benchmark]: TraceAbstraction took 241099.59 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 490.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:47:46,525 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 251.42 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 702.5 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -797.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3762.55 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 134.6 MB). Peak memory consumption was 134.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241099.59 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 490.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 175). Cancelled while BasicCegarLoop was constructing difference of abstraction (1914states) and FLOYD_HOARE automaton (currently 18 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (1935 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 241.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 204.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 596 SDtfs, 2802 SDslu, 579 SDs, 0 SdLazy, 5021 SolverSat, 892 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 76.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 621 GetRequests, 569 SyntacticMatches, 20 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 23.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1914occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9959471963852234 AbsIntWeakeningRatio, 0.09618573797678276 AbsIntAvgWeakeningVarsNumRemoved, 592.6849087893864 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 846 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 842 ConstructedInterpolants, 0 QuantifiedInterpolants, 1576239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 516/679 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown