java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label39_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:00:52,538 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:00:52,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:00:52,552 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:00:52,552 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:00:52,553 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:00:52,555 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:00:52,557 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:00:52,558 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:00:52,559 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:00:52,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:00:52,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:00:52,561 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:00:52,562 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:00:52,563 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:00:52,564 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:00:52,565 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:00:52,567 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:00:52,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:00:52,570 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:00:52,571 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:00:52,573 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:00:52,575 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:00:52,590 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:00:52,622 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:00:52,623 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:00:52,626 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:00:52,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:00:52,626 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:00:52,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:00:52,626 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:00:52,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:00:52,627 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:00:52,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:00:52,627 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:00:52,627 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:00:52,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:00:52,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:00:52,632 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:00:52,632 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:00:52,632 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:00:52,632 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:00:52,633 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:00:52,633 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:00:52,633 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:00:52,633 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:00:52,633 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:00:52,635 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:00:52,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:00:52,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:00:52,636 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:00:52,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:00:52,636 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:00:52,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:00:52,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:00:52,637 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:00:52,637 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:00:52,637 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:00:52,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:00:52,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:00:52,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:00:52,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:00:52,709 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:00:52,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label39_false-unreach-call.c [2018-11-07 00:00:52,765 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550bf3f4d/1be5c0186dd7418990e8015a3862ade4/FLAG0e73a7752 [2018-11-07 00:00:53,383 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:00:53,386 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label39_false-unreach-call.c [2018-11-07 00:00:53,404 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550bf3f4d/1be5c0186dd7418990e8015a3862ade4/FLAG0e73a7752 [2018-11-07 00:00:53,428 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/550bf3f4d/1be5c0186dd7418990e8015a3862ade4 [2018-11-07 00:00:53,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:00:53,442 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:00:53,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:00:53,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:00:53,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:00:53,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:53" (1/1) ... [2018-11-07 00:00:53,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516bc9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:53, skipping insertion in model container [2018-11-07 00:00:53,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:00:53" (1/1) ... [2018-11-07 00:00:53,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:00:53,552 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:00:54,188 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:00:54,193 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:00:54,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:00:54,410 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:00:54,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54 WrapperNode [2018-11-07 00:00:54,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:00:54,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:00:54,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:00:54,412 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:00:54,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:00:54,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:00:54,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:00:54,601 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:00:54,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... [2018-11-07 00:00:54,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:00:54,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:00:54,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:00:54,757 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:00:54,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:00:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:00:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:00:54,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:00:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:00:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:00:54,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:00:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:00:59,375 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:00:59,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:59 BoogieIcfgContainer [2018-11-07 00:00:59,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:00:59,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:00:59,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:00:59,382 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:00:59,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:00:53" (1/3) ... [2018-11-07 00:00:59,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae105ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:59, skipping insertion in model container [2018-11-07 00:00:59,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:00:54" (2/3) ... [2018-11-07 00:00:59,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae105ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:00:59, skipping insertion in model container [2018-11-07 00:00:59,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:00:59" (3/3) ... [2018-11-07 00:00:59,386 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label39_false-unreach-call.c [2018-11-07 00:00:59,395 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:00:59,404 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:00:59,424 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:00:59,469 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:00:59,469 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:00:59,469 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:00:59,470 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:00:59,470 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:00:59,470 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:00:59,470 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:00:59,470 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:00:59,514 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 00:00:59,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-07 00:00:59,523 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:00:59,524 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:00:59,526 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:00:59,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:00:59,532 INFO L82 PathProgramCache]: Analyzing trace with hash -254580935, now seen corresponding path program 1 times [2018-11-07 00:00:59,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:00:59,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:59,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:00:59,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:00:59,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:00:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:00:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:00:59,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:00:59,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:00:59,877 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:00:59,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:00:59,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:00:59,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:00:59,903 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-11-07 00:01:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:01:02,061 INFO L93 Difference]: Finished difference Result 783 states and 1371 transitions. [2018-11-07 00:01:02,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:01:02,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-07 00:01:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:01:02,083 INFO L225 Difference]: With dead ends: 783 [2018-11-07 00:01:02,083 INFO L226 Difference]: Without dead ends: 488 [2018-11-07 00:01:02,093 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:01:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-11-07 00:01:02,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2018-11-07 00:01:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-11-07 00:01:02,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 737 transitions. [2018-11-07 00:01:02,192 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 737 transitions. Word has length 17 [2018-11-07 00:01:02,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:01:02,193 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 737 transitions. [2018-11-07 00:01:02,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:01:02,194 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 737 transitions. [2018-11-07 00:01:02,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-11-07 00:01:02,200 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:01:02,200 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:01:02,201 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:01:02,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:01:02,201 INFO L82 PathProgramCache]: Analyzing trace with hash -908384725, now seen corresponding path program 1 times [2018-11-07 00:01:02,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:01:02,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:02,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:01:02,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:02,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:01:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:01:02,619 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:01:02,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:01:02,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:01:02,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:01:02,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:01:02,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:01:02,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:01:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:01:02,718 INFO L87 Difference]: Start difference. First operand 488 states and 737 transitions. Second operand 6 states. [2018-11-07 00:01:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:01:07,303 INFO L93 Difference]: Finished difference Result 1564 states and 2506 transitions. [2018-11-07 00:01:07,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:01:07,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-11-07 00:01:07,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:01:07,314 INFO L225 Difference]: With dead ends: 1564 [2018-11-07 00:01:07,314 INFO L226 Difference]: Without dead ends: 1082 [2018-11-07 00:01:07,317 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:01:07,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-11-07 00:01:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2018-11-07 00:01:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-11-07 00:01:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1603 transitions. [2018-11-07 00:01:07,376 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1603 transitions. Word has length 90 [2018-11-07 00:01:07,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:01:07,377 INFO L480 AbstractCegarLoop]: Abstraction has 1070 states and 1603 transitions. [2018-11-07 00:01:07,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:01:07,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1603 transitions. [2018-11-07 00:01:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-11-07 00:01:07,380 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:01:07,380 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:01:07,380 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:01:07,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:01:07,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1292382188, now seen corresponding path program 1 times [2018-11-07 00:01:07,381 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:01:07,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:07,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:01:07,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:07,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:01:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:01:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:01:07,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:01:07,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 00:01:07,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:01:07,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 00:01:07,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 00:01:07,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 00:01:07,717 INFO L87 Difference]: Start difference. First operand 1070 states and 1603 transitions. Second operand 7 states. [2018-11-07 00:01:10,673 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-07 00:01:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:01:13,704 INFO L93 Difference]: Finished difference Result 2995 states and 4583 transitions. [2018-11-07 00:01:13,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 00:01:13,704 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-11-07 00:01:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:01:13,723 INFO L225 Difference]: With dead ends: 2995 [2018-11-07 00:01:13,723 INFO L226 Difference]: Without dead ends: 1931 [2018-11-07 00:01:13,730 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-07 00:01:13,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2018-11-07 00:01:13,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1825. [2018-11-07 00:01:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2018-11-07 00:01:13,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2579 transitions. [2018-11-07 00:01:13,842 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2579 transitions. Word has length 91 [2018-11-07 00:01:13,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:01:13,843 INFO L480 AbstractCegarLoop]: Abstraction has 1825 states and 2579 transitions. [2018-11-07 00:01:13,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 00:01:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2579 transitions. [2018-11-07 00:01:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 00:01:13,851 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:01:13,851 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:01:13,852 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:01:13,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:01:13,852 INFO L82 PathProgramCache]: Analyzing trace with hash -598381571, now seen corresponding path program 1 times [2018-11-07 00:01:13,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:01:13,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:13,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:01:13,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:01:13,854 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:01:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:01:14,157 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:01:14,157 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:01:14,157 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:01:14,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2018-11-07 00:01:14,160 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [37], [39], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [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], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 00:01:14,250 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:01:14,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:01:18,550 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:01:35,816 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:01:35,818 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 00:01:35,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:01:35,840 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:01:38,686 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 88.46% of their original sizes. [2018-11-07 00:01:38,687 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:02:48,260 INFO L415 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2018-11-07 00:02:48,261 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:02:48,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:02:48,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [8] total 23 [2018-11-07 00:02:48,262 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:02:48,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-07 00:02:48,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-07 00:02:48,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2018-11-07 00:02:48,263 INFO L87 Difference]: Start difference. First operand 1825 states and 2579 transitions. Second operand 17 states. Received shutdown request... [2018-11-07 00:05:06,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-11-07 00:05:06,127 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:05:06,132 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:05:06,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:05:06 BoogieIcfgContainer [2018-11-07 00:05:06,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:05:06,134 INFO L168 Benchmark]: Toolchain (without parser) took 252692.61 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 392.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:05:06,135 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-07 00:05:06,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 967.87 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:05:06,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2018-11-07 00:05:06,138 INFO L168 Benchmark]: Boogie Preprocessor took 155.70 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:05:06,138 INFO L168 Benchmark]: RCFGBuilder took 4619.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 178.3 MB). Peak memory consumption was 178.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:05:06,139 INFO L168 Benchmark]: TraceAbstraction took 246755.18 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 257.7 MB. Max. memory is 7.1 GB. [2018-11-07 00:05:06,146 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 967.87 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 188.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 722.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 155.70 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4619.99 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 178.3 MB). Peak memory consumption was 178.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 246755.18 ms. Allocated memory was 2.2 GB in the beginning and 3.6 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 257.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 36]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 36). Cancelled while BasicCegarLoop was constructing difference of abstraction (1825states) and FLOYD_HOARE automaton (currently 18 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (400 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 246.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 150.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 540 SDtfs, 3126 SDslu, 502 SDs, 0 SdLazy, 5466 SolverSat, 948 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 45.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 185 GetRequests, 83 SyntacticMatches, 60 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 77.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1825occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.993922493922494 AbsIntWeakeningRatio, 0.1554054054054054 AbsIntAvgWeakeningVarsNumRemoved, 882.6216216216217 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 118 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 332559 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 24/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown