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/Problem18_label55_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:02:22,675 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:02:22,677 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:02:22,689 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:02:22,689 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:02:22,690 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:02:22,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:02:22,694 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:02:22,696 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:02:22,697 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:02:22,698 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:02:22,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:02:22,699 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:02:22,700 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:02:22,701 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:02:22,702 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:02:22,703 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:02:22,705 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:02:22,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:02:22,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:02:22,710 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:02:22,711 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:02:22,714 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 19:02:22,724 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:02:22,740 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:02:22,741 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:02:22,741 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:02:22,742 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:02:22,742 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:02:22,742 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:02:22,743 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:02:22,743 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:02:22,743 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:02:22,743 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:02:22,744 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:02:22,744 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:02:22,745 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:02:22,745 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:02:22,745 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:02:22,745 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:02:22,746 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:02:22,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:02:22,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:02:22,747 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:02:22,747 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:02:22,747 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:02:22,747 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:02:22,748 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:02:22,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:02:22,748 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:02:22,748 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:02:22,749 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:02:22,749 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:02:22,749 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:02:22,749 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:02:22,750 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:02:22,750 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:02:22,750 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:02:22,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:02:22,823 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:02:22,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:02:22,828 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:02:22,829 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:02:22,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label55_false-unreach-call.c [2018-10-24 19:02:22,884 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df8c1e789/c4233ae99fc5453a9ecca1b90dd16b26/FLAGce086a7fc [2018-10-24 19:02:23,639 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:02:23,640 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label55_false-unreach-call.c [2018-10-24 19:02:23,664 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df8c1e789/c4233ae99fc5453a9ecca1b90dd16b26/FLAGce086a7fc [2018-10-24 19:02:23,680 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/df8c1e789/c4233ae99fc5453a9ecca1b90dd16b26 [2018-10-24 19:02:23,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:02:23,693 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:02:23,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:02:23,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:02:23,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:02:23,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:02:23" (1/1) ... [2018-10-24 19:02:23,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694b18b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:23, skipping insertion in model container [2018-10-24 19:02:23,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:02:23" (1/1) ... [2018-10-24 19:02:23,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:02:23,836 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:02:24,870 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:02:24,875 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:02:25,347 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:02:25,377 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:02:25,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25 WrapperNode [2018-10-24 19:02:25,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:02:25,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:02:25,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:02:25,379 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:02:25,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:02:25,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:02:25,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:02:25,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:02:25,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... [2018-10-24 19:02:25,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:02:25,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:02:25,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:02:25,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:02:25,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:02:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:02:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:02:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 19:02:26,039 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 19:02:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 19:02:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 19:02:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:02:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:02:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:02:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:02:26,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:02:26,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:02:34,946 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:02:34,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:02:34 BoogieIcfgContainer [2018-10-24 19:02:34,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:02:34,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:02:34,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:02:34,952 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:02:34,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:02:23" (1/3) ... [2018-10-24 19:02:34,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3e1ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:02:34, skipping insertion in model container [2018-10-24 19:02:34,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:02:25" (2/3) ... [2018-10-24 19:02:34,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3e1ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:02:34, skipping insertion in model container [2018-10-24 19:02:34,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:02:34" (3/3) ... [2018-10-24 19:02:34,956 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label55_false-unreach-call.c [2018-10-24 19:02:34,966 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:02:34,977 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:02:34,996 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:02:35,042 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:02:35,042 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:02:35,043 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:02:35,043 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:02:35,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:02:35,043 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:02:35,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:02:35,044 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:02:35,084 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 19:02:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-24 19:02:35,095 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:02:35,096 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:02:35,098 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:02:35,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:02:35,104 INFO L82 PathProgramCache]: Analyzing trace with hash 795838455, now seen corresponding path program 1 times [2018-10-24 19:02:35,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:02:35,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:35,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:02:35,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:35,159 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:02:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:02:35,487 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:02:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:02:35,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:02:35,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 19:02:35,602 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:02:35,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 19:02:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 19:02:35,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 19:02:35,631 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 19:02:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:02:42,612 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 19:02:42,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 19:02:42,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-10-24 19:02:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:02:42,645 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 19:02:42,646 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 19:02:42,658 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 [2018-10-24 19:02:42,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 19:02:42,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 19:02:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 19:02:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-24 19:02:42,801 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 19 [2018-10-24 19:02:42,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:02:42,802 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-24 19:02:42,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 19:02:42,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-24 19:02:42,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-10-24 19:02:42,809 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:02:42,810 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 19:02:42,810 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:02:42,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:02:42,811 INFO L82 PathProgramCache]: Analyzing trace with hash 644505201, now seen corresponding path program 1 times [2018-10-24 19:02:42,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:02:42,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:42,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:02:42,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:42,813 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:02:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:02:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:02:43,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:02:43,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:02:43,223 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:02:43,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:02:43,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:02:43,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:02:43,226 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-10-24 19:02:51,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:02:51,923 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-10-24 19:02:51,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:02:51,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-10-24 19:02:51,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:02:51,949 INFO L225 Difference]: With dead ends: 4419 [2018-10-24 19:02:51,950 INFO L226 Difference]: Without dead ends: 2951 [2018-10-24 19:02:51,956 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:02:51,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-24 19:02:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-10-24 19:02:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-24 19:02:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-10-24 19:02:52,078 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 108 [2018-10-24 19:02:52,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:02:52,079 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-10-24 19:02:52,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:02:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-10-24 19:02:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-24 19:02:52,098 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:02:52,098 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:02:52,099 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:02:52,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:02:52,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1531957100, now seen corresponding path program 1 times [2018-10-24 19:02:52,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:02:52,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:52,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:02:52,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:02:52,101 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:02:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:02:52,525 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:02:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:02:52,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:02:52,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:02:52,833 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:02:52,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:02:52,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:02:52,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:02:52,835 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-10-24 19:03:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:03:01,710 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-10-24 19:03:01,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:03:01,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-10-24 19:03:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:03:01,758 INFO L225 Difference]: With dead ends: 10194 [2018-10-24 19:03:01,758 INFO L226 Difference]: Without dead ends: 7272 [2018-10-24 19:03:01,779 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:03:01,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-10-24 19:03:01,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-10-24 19:03:01,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-10-24 19:03:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-10-24 19:03:02,020 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 155 [2018-10-24 19:03:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:03:02,021 INFO L481 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-10-24 19:03:02,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:03:02,021 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-10-24 19:03:02,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 19:03:02,025 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:03:02,025 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:03:02,026 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:03:02,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:03:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash -318450672, now seen corresponding path program 1 times [2018-10-24 19:03:02,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:03:02,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:02,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:03:02,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:02,028 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:03:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:03:02,289 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 19:03:02,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:03:02,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:03:02,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:03:02,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:03:02,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:03:02,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:03:02,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:03:02,681 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-10-24 19:03:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:03:08,149 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-10-24 19:03:08,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:03:08,151 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-10-24 19:03:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:03:08,210 INFO L225 Difference]: With dead ends: 17365 [2018-10-24 19:03:08,210 INFO L226 Difference]: Without dead ends: 10163 [2018-10-24 19:03:08,235 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:03:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-10-24 19:03:08,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-10-24 19:03:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-10-24 19:03:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-10-24 19:03:08,499 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 157 [2018-10-24 19:03:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:03:08,500 INFO L481 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-10-24 19:03:08,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:03:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-10-24 19:03:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 19:03:08,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:03:08,511 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 19:03:08,511 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:03:08,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:03:08,512 INFO L82 PathProgramCache]: Analyzing trace with hash 950100659, now seen corresponding path program 1 times [2018-10-24 19:03:08,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:03:08,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:08,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:03:08,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:08,513 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:03:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:03:08,777 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-24 19:03:08,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:03:08,778 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:03:08,778 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:03:08,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:03:08,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:03:08,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:03:08,780 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-10-24 19:03:16,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:03:16,949 INFO L93 Difference]: Finished difference Result 28811 states and 41798 transitions. [2018-10-24 19:03:16,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:03:16,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2018-10-24 19:03:16,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:03:17,052 INFO L225 Difference]: With dead ends: 28811 [2018-10-24 19:03:17,053 INFO L226 Difference]: Without dead ends: 18709 [2018-10-24 19:03:17,103 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:03:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2018-10-24 19:03:17,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2018-10-24 19:03:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18709 states. [2018-10-24 19:03:17,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 25926 transitions. [2018-10-24 19:03:17,537 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 25926 transitions. Word has length 215 [2018-10-24 19:03:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:03:17,538 INFO L481 AbstractCegarLoop]: Abstraction has 18709 states and 25926 transitions. [2018-10-24 19:03:17,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:03:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 25926 transitions. [2018-10-24 19:03:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2018-10-24 19:03:17,556 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:03:17,556 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 19:03:17,557 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:03:17,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:03:17,557 INFO L82 PathProgramCache]: Analyzing trace with hash 953625931, now seen corresponding path program 1 times [2018-10-24 19:03:17,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:03:17,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:17,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:03:17,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:03:17,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:03:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:03:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 116 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:03:17,953 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:03:17,953 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:03:17,955 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 260 with the following transitions: [2018-10-24 19:03:17,958 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1675], [1677], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 19:03:18,061 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:03:18,061 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:03:22,028 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 19:03:22,082 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:03:22,084 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 19:03:22,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:03:22,115 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:03:24,983 INFO L232 lantSequenceWeakener]: Weakened 251 states. On average, predicates are now at 77.37% of their original sizes. [2018-10-24 19:03:24,984 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:03:25,435 INFO L413 sIntCurrentIteration]: We have 258 unified AI predicates [2018-10-24 19:03:25,435 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:03:25,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:03:25,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2018-10-24 19:03:25,437 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:03:25,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 19:03:25,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 19:03:25,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 19:03:25,438 INFO L87 Difference]: Start difference. First operand 18709 states and 25926 transitions. Second operand 7 states. [2018-10-24 19:04:19,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:04:19,004 INFO L93 Difference]: Finished difference Result 38117 states and 52714 transitions. [2018-10-24 19:04:19,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:04:19,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2018-10-24 19:04:19,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:04:19,066 INFO L225 Difference]: With dead ends: 38117 [2018-10-24 19:04:19,067 INFO L226 Difference]: Without dead ends: 19414 [2018-10-24 19:04:19,112 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 259 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 19:04:19,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2018-10-24 19:04:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19412. [2018-10-24 19:04:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19412 states. [2018-10-24 19:04:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19412 states to 19412 states and 26641 transitions. [2018-10-24 19:04:19,480 INFO L78 Accepts]: Start accepts. Automaton has 19412 states and 26641 transitions. Word has length 259 [2018-10-24 19:04:19,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:04:19,480 INFO L481 AbstractCegarLoop]: Abstraction has 19412 states and 26641 transitions. [2018-10-24 19:04:19,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 19:04:19,480 INFO L276 IsEmpty]: Start isEmpty. Operand 19412 states and 26641 transitions. [2018-10-24 19:04:19,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-10-24 19:04:19,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:04:19,498 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:04:19,499 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:04:19,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:04:19,499 INFO L82 PathProgramCache]: Analyzing trace with hash 362723945, now seen corresponding path program 1 times [2018-10-24 19:04:19,499 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:04:19,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:04:19,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:04:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:04:19,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:04:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:04:20,052 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 19:04:20,449 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 19:04:20,857 WARN L179 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 19:04:21,569 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 95 proven. 283 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:04:21,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:04:21,570 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:04:21,570 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 447 with the following transitions: [2018-10-24 19:04:21,571 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1675], [1677], [1680], [1688], [1696], [1704], [1712], [1720], [1728], [1736], [1744], [1752], [1760], [1768], [1776], [1784], [1792], [1800], [1808], [1816], [1824], [1832], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 19:04:21,583 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:04:21,583 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 19:04:24,054 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 19:04:33,974 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 19:04:33,975 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 19:04:33,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:04:33,981 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 19:04:38,635 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 77.51% of their original sizes. [2018-10-24 19:04:38,635 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 19:05:10,106 INFO L413 sIntCurrentIteration]: We have 445 unified AI predicates [2018-10-24 19:05:10,107 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 19:05:10,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 19:05:10,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-10-24 19:05:10,107 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:05:10,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 19:05:10,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 19:05:10,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2018-10-24 19:05:10,109 INFO L87 Difference]: Start difference. First operand 19412 states and 26641 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 19:06:02,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 19:06:02,587 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:06:02,591 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:06:02,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:06:02 BoogieIcfgContainer [2018-10-24 19:06:02,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:06:02,592 INFO L168 Benchmark]: Toolchain (without parser) took 218901.07 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.8 GB). Peak memory consumption was 847.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,594 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:06:02,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1684.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 387.31 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -896.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,596 INFO L168 Benchmark]: Boogie Preprocessor took 197.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,597 INFO L168 Benchmark]: RCFGBuilder took 8982.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 516.2 MB). Peak memory consumption was 516.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,598 INFO L168 Benchmark]: TraceAbstraction took 207643.84 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 342.0 MB. Max. memory is 7.1 GB. [2018-10-24 19:06:02,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1684.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 387.31 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -896.1 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 197.29 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8982.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 516.2 MB). Peak memory consumption was 516.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207643.84 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.6 GB in the beginning and 3.1 GB in the end (delta: -1.5 GB). Peak memory consumption was 342.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while BasicCegarLoop was constructing difference of abstraction (19412states) and FLOYD_HOARE automaton (currently 9 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (154 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 207.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 144.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2556 SDtfs, 12993 SDslu, 693 SDs, 0 SdLazy, 22700 SolverSat, 6329 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 748 GetRequests, 646 SyntacticMatches, 53 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 33.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19412occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.996523697610654 AbsIntWeakeningRatio, 0.08250355618776671 AbsIntAvgWeakeningVarsNumRemoved, 343.325746799431 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1359 NumberOfCodeBlocks, 1359 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1352 ConstructedInterpolants, 0 QuantifiedInterpolants, 2094857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 370/663 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown