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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 02:53:16,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 02:53:16,628 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 02:53:16,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 02:53:16,644 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 02:53:16,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 02:53:16,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 02:53:16,651 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 02:53:16,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 02:53:16,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 02:53:16,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 02:53:16,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 02:53:16,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 02:53:16,664 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 02:53:16,668 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 02:53:16,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 02:53:16,669 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 02:53:16,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 02:53:16,676 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 02:53:16,678 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 02:53:16,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 02:53:16,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 02:53:16,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 02:53:16,696 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 02:53:16,722 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 02:53:16,723 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 02:53:16,724 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 02:53:16,724 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 02:53:16,724 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 02:53:16,724 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 02:53:16,724 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 02:53:16,724 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 02:53:16,725 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 02:53:16,725 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 02:53:16,726 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 02:53:16,726 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 02:53:16,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 02:53:16,727 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 02:53:16,727 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 02:53:16,727 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 02:53:16,727 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 02:53:16,727 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 02:53:16,728 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 02:53:16,729 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 02:53:16,729 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 02:53:16,729 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 02:53:16,729 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 02:53:16,729 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 02:53:16,730 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 02:53:16,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 02:53:16,730 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 02:53:16,730 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 02:53:16,730 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 02:53:16,731 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 02:53:16,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 02:53:16,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 02:53:16,731 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 02:53:16,731 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 02:53:16,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 02:53:16,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 02:53:16,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 02:53:16,811 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 02:53:16,811 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 02:53:16,812 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-11-07 02:53:16,878 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e59a857/d6ea6d6777974e709ec764ab2fc34826/FLAG432b00a00 [2018-11-07 02:53:17,475 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 02:53:17,476 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-11-07 02:53:17,502 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e59a857/d6ea6d6777974e709ec764ab2fc34826/FLAG432b00a00 [2018-11-07 02:53:17,519 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68e59a857/d6ea6d6777974e709ec764ab2fc34826 [2018-11-07 02:53:17,536 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 02:53:17,537 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 02:53:17,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 02:53:17,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 02:53:17,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 02:53:17,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:53:17" (1/1) ... [2018-11-07 02:53:17,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d140be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:17, skipping insertion in model container [2018-11-07 02:53:17,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:53:17" (1/1) ... [2018-11-07 02:53:17,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 02:53:17,629 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 02:53:18,327 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:53:18,333 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 02:53:18,553 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 02:53:18,572 INFO L193 MainTranslator]: Completed translation [2018-11-07 02:53:18,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18 WrapperNode [2018-11-07 02:53:18,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 02:53:18,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 02:53:18,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 02:53:18,575 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 02:53:18,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 02:53:18,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 02:53:18,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 02:53:18,781 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 02:53:18,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (1/1) ... [2018-11-07 02:53:18,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 02:53:18,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 02:53:18,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 02:53:18,928 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 02:53:18,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (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 02:53:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 02:53:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 02:53:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 02:53:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 02:53:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 02:53:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 02:53:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 02:53:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 02:53:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 02:53:23,406 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 02:53:23,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:23 BoogieIcfgContainer [2018-11-07 02:53:23,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 02:53:23,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 02:53:23,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 02:53:23,412 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 02:53:23,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:53:17" (1/3) ... [2018-11-07 02:53:23,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:23, skipping insertion in model container [2018-11-07 02:53:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:53:18" (2/3) ... [2018-11-07 02:53:23,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7601e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:23, skipping insertion in model container [2018-11-07 02:53:23,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:23" (3/3) ... [2018-11-07 02:53:23,417 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label10_true-unreach-call.c [2018-11-07 02:53:23,428 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 02:53:23,439 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 02:53:23,455 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 02:53:23,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 02:53:23,495 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 02:53:23,495 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 02:53:23,495 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 02:53:23,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 02:53:23,496 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 02:53:23,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 02:53:23,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 02:53:23,527 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 02:53:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-07 02:53:23,535 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:23,536 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] [2018-11-07 02:53:23,539 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:23,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:23,546 INFO L82 PathProgramCache]: Analyzing trace with hash -250768471, now seen corresponding path program 1 times [2018-11-07 02:53:23,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:23,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:23,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:23,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:23,603 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:24,011 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-11-07 02:53:24,020 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 02:53:24,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:24,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:53:24,025 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:24,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:53:24,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:53:24,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:53:24,047 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-11-07 02:53:27,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:27,573 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-11-07 02:53:27,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:53:27,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-07 02:53:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:27,599 INFO L225 Difference]: With dead ends: 1001 [2018-11-07 02:53:27,599 INFO L226 Difference]: Without dead ends: 702 [2018-11-07 02:53:27,608 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:53:27,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-11-07 02:53:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-11-07 02:53:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-11-07 02:53:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-11-07 02:53:27,720 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 29 [2018-11-07 02:53:27,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:27,721 INFO L480 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-11-07 02:53:27,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:53:27,721 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-11-07 02:53:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 02:53:27,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:27,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:27,728 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:27,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:27,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2105116581, now seen corresponding path program 1 times [2018-11-07 02:53:27,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:27,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:27,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:27,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:27,731 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:28,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:28,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:53:28,097 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:28,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:53:28,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:53:28,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:53:28,100 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-11-07 02:53:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:32,929 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-11-07 02:53:32,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:53:32,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-11-07 02:53:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:32,946 INFO L225 Difference]: With dead ends: 2534 [2018-11-07 02:53:32,946 INFO L226 Difference]: Without dead ends: 1841 [2018-11-07 02:53:32,954 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 02:53:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-11-07 02:53:33,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-11-07 02:53:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-11-07 02:53:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-11-07 02:53:33,058 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 102 [2018-11-07 02:53:33,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:33,059 INFO L480 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-11-07 02:53:33,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:53:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-11-07 02:53:33,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-07 02:53:33,066 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:33,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:33,067 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:33,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:33,067 INFO L82 PathProgramCache]: Analyzing trace with hash 367698756, now seen corresponding path program 1 times [2018-11-07 02:53:33,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:33,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:33,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:33,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:33,070 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:33,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:33,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 02:53:33,263 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:33,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 02:53:33,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 02:53:33,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 02:53:33,264 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-11-07 02:53:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:35,732 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-11-07 02:53:35,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 02:53:35,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-11-07 02:53:35,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:35,770 INFO L225 Difference]: With dead ends: 4796 [2018-11-07 02:53:35,771 INFO L226 Difference]: Without dead ends: 2987 [2018-11-07 02:53:35,787 INFO L604 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 [2018-11-07 02:53:35,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-11-07 02:53:35,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-11-07 02:53:35,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-11-07 02:53:35,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-11-07 02:53:35,893 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 103 [2018-11-07 02:53:35,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:35,893 INFO L480 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-11-07 02:53:35,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 02:53:35,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-11-07 02:53:35,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-11-07 02:53:35,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:35,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:35,903 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:35,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:35,903 INFO L82 PathProgramCache]: Analyzing trace with hash -537163217, now seen corresponding path program 1 times [2018-11-07 02:53:35,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:35,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:35,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:35,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:35,906 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:36,469 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:36,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 02:53:36,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 02:53:36,471 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:36,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 02:53:36,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 02:53:36,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 02:53:36,474 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-11-07 02:53:40,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:53:40,169 INFO L93 Difference]: Finished difference Result 11408 states and 20931 transitions. [2018-11-07 02:53:40,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 02:53:40,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-11-07 02:53:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:53:40,263 INFO L225 Difference]: With dead ends: 11408 [2018-11-07 02:53:40,264 INFO L226 Difference]: Without dead ends: 8444 [2018-11-07 02:53:40,351 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 02:53:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8444 states. [2018-11-07 02:53:40,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8444 to 7648. [2018-11-07 02:53:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7648 states. [2018-11-07 02:53:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7648 states to 7648 states and 11142 transitions. [2018-11-07 02:53:40,703 INFO L78 Accepts]: Start accepts. Automaton has 7648 states and 11142 transitions. Word has length 128 [2018-11-07 02:53:40,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:53:40,704 INFO L480 AbstractCegarLoop]: Abstraction has 7648 states and 11142 transitions. [2018-11-07 02:53:40,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 02:53:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 7648 states and 11142 transitions. [2018-11-07 02:53:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-07 02:53:40,713 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:53:40,713 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, 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] [2018-11-07 02:53:40,713 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:53:40,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:40,714 INFO L82 PathProgramCache]: Analyzing trace with hash -388558922, now seen corresponding path program 1 times [2018-11-07 02:53:40,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:53:40,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:40,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:53:40,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:53:40,715 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:53:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:53:41,157 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:53:41,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:53:41,158 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:53:41,159 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-11-07 02:53:41,161 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [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], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:53:41,226 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:53:41,226 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:53:43,042 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:53:43,044 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 02:53:43,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:53:43,056 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:53:45,219 INFO L227 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.31% of their original sizes. [2018-11-07 02:53:45,219 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:53:45,753 INFO L415 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-11-07 02:53:45,754 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:53:45,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:53:45,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 02:53:45,755 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:53:45,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 02:53:45,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 02:53:45,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 02:53:45,756 INFO L87 Difference]: Start difference. First operand 7648 states and 11142 transitions. Second operand 7 states. [2018-11-07 02:53:48,297 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:54:35,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:54:35,163 INFO L93 Difference]: Finished difference Result 15482 states and 22497 transitions. [2018-11-07 02:54:35,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 02:54:35,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2018-11-07 02:54:35,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:54:35,212 INFO L225 Difference]: With dead ends: 15482 [2018-11-07 02:54:35,212 INFO L226 Difference]: Without dead ends: 7840 [2018-11-07 02:54:35,247 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 02:54:35,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2018-11-07 02:54:35,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 7838. [2018-11-07 02:54:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7838 states. [2018-11-07 02:54:35,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7838 states to 7838 states and 11343 transitions. [2018-11-07 02:54:35,492 INFO L78 Accepts]: Start accepts. Automaton has 7838 states and 11343 transitions. Word has length 176 [2018-11-07 02:54:35,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:54:35,493 INFO L480 AbstractCegarLoop]: Abstraction has 7838 states and 11343 transitions. [2018-11-07 02:54:35,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 02:54:35,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7838 states and 11343 transitions. [2018-11-07 02:54:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-11-07 02:54:35,500 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:54:35,500 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, 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, 1, 1, 1, 1, 1] [2018-11-07 02:54:35,501 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:54:35,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:54:35,501 INFO L82 PathProgramCache]: Analyzing trace with hash 987927268, now seen corresponding path program 1 times [2018-11-07 02:54:35,501 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:54:35,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:54:35,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:54:35,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:54:35,503 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:54:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:54:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:54:36,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:54:36,105 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:54:36,106 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-11-07 02:54:36,108 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [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], [502], [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 02:54:36,127 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:54:36,127 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:54:39,487 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:54:55,533 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 02:54:55,533 INFO L272 AbstractInterpreter]: Visited 141 different actions 410 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:54:55,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:54:55,544 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 02:54:55,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:54:55,544 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 02:54:55,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:54:55,559 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 02:54:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:54:55,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 02:54:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:54:55,954 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 02:54:56,116 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 02:54:56,218 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 02:54:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 02:54:56,796 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 02:54:56,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 02:54:56,797 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 02:54:56,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 02:54:56,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 02:54:56,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 02:54:56,799 INFO L87 Difference]: Start difference. First operand 7838 states and 11343 transitions. Second operand 9 states. [2018-11-07 02:55:07,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 02:55:07,762 INFO L93 Difference]: Finished difference Result 21959 states and 42220 transitions. [2018-11-07 02:55:07,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 02:55:07,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 233 [2018-11-07 02:55:07,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 02:55:07,930 INFO L225 Difference]: With dead ends: 21959 [2018-11-07 02:55:07,931 INFO L226 Difference]: Without dead ends: 14317 [2018-11-07 02:55:08,153 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 469 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-11-07 02:55:08,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14317 states. [2018-11-07 02:55:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14317 to 14158. [2018-11-07 02:55:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14158 states. [2018-11-07 02:55:08,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14158 states to 14158 states and 24731 transitions. [2018-11-07 02:55:08,916 INFO L78 Accepts]: Start accepts. Automaton has 14158 states and 24731 transitions. Word has length 233 [2018-11-07 02:55:08,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 02:55:08,917 INFO L480 AbstractCegarLoop]: Abstraction has 14158 states and 24731 transitions. [2018-11-07 02:55:08,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 02:55:08,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14158 states and 24731 transitions. [2018-11-07 02:55:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-11-07 02:55:08,925 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 02:55:08,926 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, 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, 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] [2018-11-07 02:55:08,926 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 02:55:08,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:55:08,927 INFO L82 PathProgramCache]: Analyzing trace with hash 877957787, now seen corresponding path program 1 times [2018-11-07 02:55:08,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 02:55:08,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:55:08,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 02:55:08,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 02:55:08,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 02:55:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 02:55:09,302 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-11-07 02:55:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 02:55:10,185 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 02:55:10,185 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 02:55:10,185 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-11-07 02:55:10,185 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [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], [594], [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], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 02:55:10,191 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 02:55:10,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 02:55:12,616 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 02:55:30,182 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 02:55:30,182 INFO L272 AbstractInterpreter]: Visited 135 different actions 393 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 02:55:30,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 02:55:30,188 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 02:55:35,396 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 76.12% of their original sizes. [2018-11-07 02:55:35,397 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 02:56:10,746 INFO L415 sIntCurrentIteration]: We unified 250 AI predicates to 250 [2018-11-07 02:56:10,747 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 02:56:10,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 02:56:10,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [9] total 25 [2018-11-07 02:56:10,747 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 02:56:10,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 02:56:10,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 02:56:10,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-11-07 02:56:10,749 INFO L87 Difference]: Start difference. First operand 14158 states and 24731 transitions. Second operand 18 states. Received shutdown request... [2018-11-07 02:57:06,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 02:57:06,413 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 02:57:06,418 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 02:57:06,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:57:06 BoogieIcfgContainer [2018-11-07 02:57:06,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 02:57:06,419 INFO L168 Benchmark]: Toolchain (without parser) took 228883.33 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -499.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-07 02:57:06,421 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 02:57:06,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1035.21 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. [2018-11-07 02:57:06,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 206.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2018-11-07 02:57:06,423 INFO L168 Benchmark]: Boogie Preprocessor took 146.50 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. [2018-11-07 02:57:06,423 INFO L168 Benchmark]: RCFGBuilder took 4480.03 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: 184.8 MB). Peak memory consumption was 184.8 MB. Max. memory is 7.1 GB. [2018-11-07 02:57:06,424 INFO L168 Benchmark]: TraceAbstraction took 223010.23 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 1.9 GB in the end (delta: 88.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-07 02:57:06,429 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1035.21 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 206.28 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.50 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 4480.03 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: 184.8 MB). Peak memory consumption was 184.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223010.23 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 1.9 GB in the end (delta: 88.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 72). Cancelled while BasicCegarLoop was constructing difference of abstraction (14158states) and FLOYD_HOARE automaton (currently 12 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (135 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 222.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 131.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1447 SDtfs, 6179 SDslu, 1498 SDs, 0 SdLazy, 11089 SolverSat, 2569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 956 GetRequests, 862 SyntacticMatches, 26 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 39.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14158occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 41.3s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9952567693744169 AbsIntWeakeningRatio, 0.13176470588235295 AbsIntAvgWeakeningVarsNumRemoved, 551.3788235294118 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1255 NumberOfCodeBlocks, 1255 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1479 ConstructedInterpolants, 0 QuantifiedInterpolants, 891739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 443 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 614/669 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown