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/Problem11_label31_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:36:00,591 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:36:00,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:36:00,614 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:36:00,614 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:36:00,615 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:36:00,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:36:00,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:36:00,622 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:36:00,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:36:00,630 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:36:00,631 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:36:00,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:36:00,637 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:36:00,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:36:00,640 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:36:00,641 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:36:00,645 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:36:00,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:36:00,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:36:00,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:36:00,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:36:00,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-26 23:36:00,661 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 [2018-10-26 23:36:00,677 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:36:00,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:36:00,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:36:00,679 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:36:00,679 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:36:00,680 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:36:00,680 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:36:00,681 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:36:00,681 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-26 23:36:00,681 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:36:00,681 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:36:00,681 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:36:00,682 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:36:00,683 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:36:00,684 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:36:00,684 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:36:00,684 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:36:00,684 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:36:00,684 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:36:00,685 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:36:00,686 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:36:00,686 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:36:00,687 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:36:00,687 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:36:00,687 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:36:00,687 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:36:00,687 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:36:00,688 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 23:36:00,688 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-26 23:36:00,741 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:36:00,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:36:00,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:36:00,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:36:00,765 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:36:00,766 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-10-26 23:36:00,843 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/998aebc6c/2106ccc0d8424d36a6aa3af24c39189f/FLAG6f2d27afb [2018-10-26 23:36:01,470 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:36:01,475 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label31_false-unreach-call.c [2018-10-26 23:36:01,497 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/998aebc6c/2106ccc0d8424d36a6aa3af24c39189f/FLAG6f2d27afb [2018-10-26 23:36:01,518 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/998aebc6c/2106ccc0d8424d36a6aa3af24c39189f [2018-10-26 23:36:01,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:36:01,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 23:36:01,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:36:01,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:36:01,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:36:01,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:36:01" (1/1) ... [2018-10-26 23:36:01,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7fd792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:01, skipping insertion in model container [2018-10-26 23:36:01,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:36:01" (1/1) ... [2018-10-26 23:36:01,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:36:01,638 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:36:02,246 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:36:02,252 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:36:02,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:36:02,498 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:36:02,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02 WrapperNode [2018-10-26 23:36:02,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:36:02,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:36:02,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:36:02,500 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:36:02,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,783 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:36:02,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:36:02,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:36:02,784 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:36:02,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (1/1) ... [2018-10-26 23:36:02,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:36:02,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:36:02,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:36:02,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:36:02,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (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 [2018-10-26 23:36:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:36:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:36:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-26 23:36:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-26 23:36:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:36:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:36:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:36:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:36:07,319 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:36:07,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:36:07 BoogieIcfgContainer [2018-10-26 23:36:07,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:36:07,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:36:07,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:36:07,325 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:36:07,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:36:01" (1/3) ... [2018-10-26 23:36:07,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cd0792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:36:07, skipping insertion in model container [2018-10-26 23:36:07,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:36:02" (2/3) ... [2018-10-26 23:36:07,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cd0792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:36:07, skipping insertion in model container [2018-10-26 23:36:07,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:36:07" (3/3) ... [2018-10-26 23:36:07,329 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label31_false-unreach-call.c [2018-10-26 23:36:07,339 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:36:07,349 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:36:07,367 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:36:07,409 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:36:07,409 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:36:07,409 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:36:07,409 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:36:07,410 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:36:07,410 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:36:07,410 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:36:07,410 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:36:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-26 23:36:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-26 23:36:07,447 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:36:07,448 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:36:07,450 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:36:07,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:07,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1380418692, now seen corresponding path program 1 times [2018-10-26 23:36:07,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:36:07,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:07,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:07,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:07,513 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:36:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:36:07,845 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:36:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:36:07,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:36:07,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 23:36:07,954 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:36:07,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:36:07,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:36:07,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:36:07,982 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-26 23:36:10,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:36:10,184 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-26 23:36:10,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:36:10,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-26 23:36:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:36:10,209 INFO L225 Difference]: With dead ends: 782 [2018-10-26 23:36:10,210 INFO L226 Difference]: Without dead ends: 487 [2018-10-26 23:36:10,219 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 23:36:10,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-26 23:36:10,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-26 23:36:10,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-26 23:36:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-10-26 23:36:10,309 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 14 [2018-10-26 23:36:10,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:36:10,309 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-10-26 23:36:10,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:36:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-10-26 23:36:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-26 23:36:10,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:36:10,316 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-26 23:36:10,316 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:36:10,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:10,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1196080591, now seen corresponding path program 1 times [2018-10-26 23:36:10,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:36:10,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:10,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:10,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:10,319 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:36:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:36:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:36:11,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:36:11,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:36:11,125 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:36:11,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:36:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:36:11,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:36:11,129 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-10-26 23:36:17,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:36:17,674 INFO L93 Difference]: Finished difference Result 1756 states and 3231 transitions. [2018-10-26 23:36:17,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 23:36:17,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2018-10-26 23:36:17,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:36:17,688 INFO L225 Difference]: With dead ends: 1756 [2018-10-26 23:36:17,688 INFO L226 Difference]: Without dead ends: 1280 [2018-10-26 23:36:17,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-26 23:36:17,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2018-10-26 23:36:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 1033. [2018-10-26 23:36:17,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1033 states. [2018-10-26 23:36:17,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1679 transitions. [2018-10-26 23:36:17,799 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1679 transitions. Word has length 89 [2018-10-26 23:36:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:36:17,799 INFO L481 AbstractCegarLoop]: Abstraction has 1033 states and 1679 transitions. [2018-10-26 23:36:17,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:36:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1679 transitions. [2018-10-26 23:36:17,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-26 23:36:17,814 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:36:17,814 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:36:17,814 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:36:17,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:17,819 INFO L82 PathProgramCache]: Analyzing trace with hash -669093568, now seen corresponding path program 1 times [2018-10-26 23:36:17,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:36:17,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:17,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:17,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:17,821 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:36:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:36:18,133 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-26 23:36:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 14 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-26 23:36:18,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:36:18,345 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:36:18,346 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2018-10-26 23:36:18,348 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [13], [15], [18], [26], [34], [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], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-26 23:36:18,425 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:36:18,425 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:36:20,497 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:36:20,786 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:36:20,789 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-26 23:36:20,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:20,802 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:36:23,050 INFO L227 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 72.96% of their original sizes. [2018-10-26 23:36:23,050 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:36:23,531 INFO L415 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2018-10-26 23:36:23,532 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:36:23,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:36:23,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-26 23:36:23,533 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:36:23,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:36:23,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:36:23,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:36:23,535 INFO L87 Difference]: Start difference. First operand 1033 states and 1679 transitions. Second operand 7 states. [2018-10-26 23:36:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:36:59,928 INFO L93 Difference]: Finished difference Result 2252 states and 3562 transitions. [2018-10-26 23:36:59,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:36:59,928 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2018-10-26 23:36:59,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:36:59,936 INFO L225 Difference]: With dead ends: 2252 [2018-10-26 23:36:59,936 INFO L226 Difference]: Without dead ends: 1225 [2018-10-26 23:36:59,940 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-26 23:36:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2018-10-26 23:36:59,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1223. [2018-10-26 23:36:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1223 states. [2018-10-26 23:36:59,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1877 transitions. [2018-10-26 23:36:59,983 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1877 transitions. Word has length 162 [2018-10-26 23:36:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:36:59,984 INFO L481 AbstractCegarLoop]: Abstraction has 1223 states and 1877 transitions. [2018-10-26 23:36:59,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:36:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1877 transitions. [2018-10-26 23:36:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-26 23:36:59,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:36:59,988 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-26 23:36:59,989 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:36:59,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:36:59,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1475705382, now seen corresponding path program 1 times [2018-10-26 23:36:59,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:36:59,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:59,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:36:59,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:36:59,991 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:37:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:00,531 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-26 23:37:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 18 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:01,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:37:01,028 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-26 23:37:01,029 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-26 23:37:01,029 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [13], [15], [18], [26], [34], [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], [514], [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], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-26 23:37:01,037 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:37:01,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:37:06,571 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-26 23:37:16,241 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:37:16,241 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-26 23:37:16,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:16,249 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:37:19,339 INFO L227 lantSequenceWeakener]: Weakened 74 states. On average, predicates are now at 73.52% of their original sizes. [2018-10-26 23:37:19,339 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:37:54,933 INFO L415 sIntCurrentIteration]: We unified 205 AI predicates to 205 [2018-10-26 23:37:54,933 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:37:54,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 23:37:54,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [10] total 24 [2018-10-26 23:37:54,934 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:37:54,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-26 23:37:54,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-26 23:37:54,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-26 23:37:54,936 INFO L87 Difference]: Start difference. First operand 1223 states and 1877 transitions. Second operand 16 states. Received shutdown request... [2018-10-26 23:40:02,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-26 23:40:02,727 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 23:40:02,732 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 23:40:02,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:40:02 BoogieIcfgContainer [2018-10-26 23:40:02,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:40:02,734 INFO L168 Benchmark]: Toolchain (without parser) took 241200.98 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 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-26 23:40:02,735 INFO L168 Benchmark]: CDTParser took 0.51 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. [2018-10-26 23:40:02,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 964.84 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-26 23:40:02,736 INFO L168 Benchmark]: Boogie Procedure Inliner took 283.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-26 23:40:02,737 INFO L168 Benchmark]: Boogie Preprocessor took 168.10 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 23:40:02,738 INFO L168 Benchmark]: RCFGBuilder took 4367.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 7.1 GB. [2018-10-26 23:40:02,739 INFO L168 Benchmark]: TraceAbstraction took 235411.37 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -685.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-26 23:40:02,744 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 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 964.84 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 283.52 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 168.10 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4367.92 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235411.37 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 2.7 GB in the end (delta: -685.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 27). Cancelled while BasicCegarLoop was constructing difference of abstraction (1223states) and FLOYD_HOARE automaton (currently 17 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (734 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 235.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 173.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 679 SDtfs, 2819 SDslu, 658 SDs, 0 SdLazy, 4607 SolverSat, 812 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 71.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 392 GetRequests, 324 SyntacticMatches, 30 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 40.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1223occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9944921502298555 AbsIntWeakeningRatio, 0.15300546448087432 AbsIntAvgWeakeningVarsNumRemoved, 629.8688524590164 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 254 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 471 NumberOfCodeBlocks, 471 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 467 ConstructedInterpolants, 0 QuantifiedInterpolants, 558869 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 44/183 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown