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/Problem16_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:56:52,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:56:52,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:56:52,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:56:52,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:56:52,670 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:56:52,672 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:56:52,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:56:52,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:56:52,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:56:52,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:56:52,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:56:52,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:56:52,688 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:56:52,689 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:56:52,690 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:56:52,693 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:56:52,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:56:52,700 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:56:52,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:56:52,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:56:52,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:56:52,712 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:56:52,721 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:56:52,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:56:52,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:56:52,737 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:56:52,737 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:56:52,737 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:56:52,738 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:56:52,738 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:56:52,738 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:56:52,738 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:56:52,738 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:56:52,739 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:56:52,739 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:56:52,739 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:56:52,740 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:56:52,740 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:56:52,740 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:56:52,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:56:52,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:56:52,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:56:52,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:56:52,741 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:56:52,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:56:52,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:56:52,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:56:52,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:56:52,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:56:52,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:56:52,742 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:56:52,743 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:56:52,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:56:52,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:56:52,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:56:52,812 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:56:52,813 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:56:52,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label17_true-unreach-call.c [2018-10-24 21:56:52,876 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1bb7dd12/322dbc3e647447268b52f4a840875a6c/FLAGdc5b86341 [2018-10-24 21:56:53,573 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:56:53,575 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label17_true-unreach-call.c [2018-10-24 21:56:53,596 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1bb7dd12/322dbc3e647447268b52f4a840875a6c/FLAGdc5b86341 [2018-10-24 21:56:53,612 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c1bb7dd12/322dbc3e647447268b52f4a840875a6c [2018-10-24 21:56:53,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:56:53,624 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:56:53,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:56:53,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:56:53,631 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:56:53,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:53" (1/1) ... [2018-10-24 21:56:53,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa98528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:53, skipping insertion in model container [2018-10-24 21:56:53,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:56:53" (1/1) ... [2018-10-24 21:56:53,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:56:53,739 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:56:54,486 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:56:54,491 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:56:54,739 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:56:54,766 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:56:54,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54 WrapperNode [2018-10-24 21:56:54,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:56:54,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:56:54,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:56:54,769 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:56:54,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:54,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:56:55,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:56:55,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:56:55,124 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:56:55,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... [2018-10-24 21:56:55,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:56:55,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:56:55,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:56:55,283 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:56:55,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:56:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:56:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:56:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:56:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:56:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:56:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:56:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:56:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:56:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:56:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:57:01,982 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:57:01,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:01 BoogieIcfgContainer [2018-10-24 21:57:01,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:57:01,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:57:01,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:57:01,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:57:01,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:56:53" (1/3) ... [2018-10-24 21:57:01,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:01, skipping insertion in model container [2018-10-24 21:57:01,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:56:54" (2/3) ... [2018-10-24 21:57:01,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68f095bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:01, skipping insertion in model container [2018-10-24 21:57:01,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:01" (3/3) ... [2018-10-24 21:57:01,999 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label17_true-unreach-call.c [2018-10-24 21:57:02,011 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:57:02,022 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:57:02,041 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:57:02,087 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:57:02,088 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:57:02,088 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:57:02,088 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:57:02,088 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:57:02,088 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:57:02,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:57:02,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:57:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 21:57:02,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-24 21:57:02,136 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:02,138 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:57:02,140 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:02,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:02,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1724248043, now seen corresponding path program 1 times [2018-10-24 21:57:02,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:02,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:02,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:02,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:02,201 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:02,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:57:02,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:57:02,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:57:02,649 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:02,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:57:02,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:57:02,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:57:02,678 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 21:57:06,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:06,646 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 21:57:06,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:57:06,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-10-24 21:57:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:06,680 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 21:57:06,681 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 21:57:06,694 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:57:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 21:57:06,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 21:57:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 21:57:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-10-24 21:57:06,821 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 65 [2018-10-24 21:57:06,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:06,822 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-10-24 21:57:06,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:57:06,822 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-10-24 21:57:06,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-10-24 21:57:06,831 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:06,832 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:57:06,832 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:06,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:06,833 INFO L82 PathProgramCache]: Analyzing trace with hash 735694757, now seen corresponding path program 1 times [2018-10-24 21:57:06,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:06,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:06,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:06,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:06,835 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:57:07,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:57:07,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:57:07,252 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:07,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:57:07,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:57:07,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:57:07,255 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 6 states. [2018-10-24 21:57:14,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:14,678 INFO L93 Difference]: Finished difference Result 2191 states and 4077 transitions. [2018-10-24 21:57:14,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:57:14,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2018-10-24 21:57:14,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:14,695 INFO L225 Difference]: With dead ends: 2191 [2018-10-24 21:57:14,695 INFO L226 Difference]: Without dead ends: 1453 [2018-10-24 21:57:14,702 INFO L605 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 [2018-10-24 21:57:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2018-10-24 21:57:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1436. [2018-10-24 21:57:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-10-24 21:57:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2556 transitions. [2018-10-24 21:57:14,793 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2556 transitions. Word has length 136 [2018-10-24 21:57:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:14,796 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2556 transitions. [2018-10-24 21:57:14,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:57:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2556 transitions. [2018-10-24 21:57:14,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 21:57:14,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:14,810 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:57:14,811 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:14,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:14,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1598709869, now seen corresponding path program 1 times [2018-10-24 21:57:14,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:14,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:14,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:14,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:14,813 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:57:15,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:57:15,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:57:15,135 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:15,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:57:15,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:57:15,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:57:15,139 INFO L87 Difference]: Start difference. First operand 1436 states and 2556 transitions. Second operand 6 states. [2018-10-24 21:57:21,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:21,673 INFO L93 Difference]: Finished difference Result 3925 states and 7037 transitions. [2018-10-24 21:57:21,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:57:21,674 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-24 21:57:21,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:21,690 INFO L225 Difference]: With dead ends: 3925 [2018-10-24 21:57:21,691 INFO L226 Difference]: Without dead ends: 2495 [2018-10-24 21:57:21,700 INFO L605 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 [2018-10-24 21:57:21,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2018-10-24 21:57:21,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2466. [2018-10-24 21:57:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2466 states. [2018-10-24 21:57:21,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2466 states to 2466 states and 4043 transitions. [2018-10-24 21:57:21,784 INFO L78 Accepts]: Start accepts. Automaton has 2466 states and 4043 transitions. Word has length 140 [2018-10-24 21:57:21,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:21,784 INFO L481 AbstractCegarLoop]: Abstraction has 2466 states and 4043 transitions. [2018-10-24 21:57:21,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:57:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 2466 states and 4043 transitions. [2018-10-24 21:57:21,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-24 21:57:21,789 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:21,789 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:57:21,789 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:21,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:21,790 INFO L82 PathProgramCache]: Analyzing trace with hash -901457180, now seen corresponding path program 1 times [2018-10-24 21:57:21,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:21,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:21,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:21,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:21,792 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:22,059 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:57:22,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:57:22,059 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:57:22,059 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:22,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:57:22,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:57:22,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:57:22,061 INFO L87 Difference]: Start difference. First operand 2466 states and 4043 transitions. Second operand 6 states. [2018-10-24 21:57:26,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:26,343 INFO L93 Difference]: Finished difference Result 6987 states and 11546 transitions. [2018-10-24 21:57:26,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:57:26,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2018-10-24 21:57:26,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:26,376 INFO L225 Difference]: With dead ends: 6987 [2018-10-24 21:57:26,376 INFO L226 Difference]: Without dead ends: 4527 [2018-10-24 21:57:26,395 INFO L605 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 [2018-10-24 21:57:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2018-10-24 21:57:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 4495. [2018-10-24 21:57:26,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4495 states. [2018-10-24 21:57:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 6547 transitions. [2018-10-24 21:57:26,514 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 6547 transitions. Word has length 171 [2018-10-24 21:57:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:26,515 INFO L481 AbstractCegarLoop]: Abstraction has 4495 states and 6547 transitions. [2018-10-24 21:57:26,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:57:26,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 6547 transitions. [2018-10-24 21:57:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-10-24 21:57:26,521 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:26,521 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:57:26,521 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:26,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:26,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1025094140, now seen corresponding path program 1 times [2018-10-24 21:57:26,522 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:26,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:26,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:26,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:26,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:26,854 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:57:26,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:57:26,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:57:26,855 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:26,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:57:26,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:57:26,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:57:26,856 INFO L87 Difference]: Start difference. First operand 4495 states and 6547 transitions. Second operand 6 states. [2018-10-24 21:57:35,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:35,889 INFO L93 Difference]: Finished difference Result 17032 states and 26184 transitions. [2018-10-24 21:57:35,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:57:35,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 215 [2018-10-24 21:57:35,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:35,989 INFO L225 Difference]: With dead ends: 17032 [2018-10-24 21:57:35,989 INFO L226 Difference]: Without dead ends: 12543 [2018-10-24 21:57:36,044 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:57:36,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12543 states. [2018-10-24 21:57:36,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12543 to 12538. [2018-10-24 21:57:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12538 states. [2018-10-24 21:57:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12538 states to 12538 states and 17866 transitions. [2018-10-24 21:57:36,412 INFO L78 Accepts]: Start accepts. Automaton has 12538 states and 17866 transitions. Word has length 215 [2018-10-24 21:57:36,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:36,413 INFO L481 AbstractCegarLoop]: Abstraction has 12538 states and 17866 transitions. [2018-10-24 21:57:36,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:57:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states and 17866 transitions. [2018-10-24 21:57:36,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2018-10-24 21:57:36,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:36,457 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:57:36,458 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:36,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:36,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1811832691, now seen corresponding path program 1 times [2018-10-24 21:57:36,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:36,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:36,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:36,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:36,460 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:36,779 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:57:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 116 proven. 70 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:57:37,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:57:37,286 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:57:37,287 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 340 with the following transitions: [2018-10-24 21:57:37,292 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [599], [601], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [692], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1188], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 21:57:37,397 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:57:37,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:57:42,382 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:57:42,384 INFO L272 AbstractInterpreter]: Visited 204 different actions 204 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:57:42,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:42,426 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:57:45,244 INFO L232 lantSequenceWeakener]: Weakened 331 states. On average, predicates are now at 77.98% of their original sizes. [2018-10-24 21:57:45,244 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:57:45,861 INFO L413 sIntCurrentIteration]: We have 338 unified AI predicates [2018-10-24 21:57:45,861 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:57:45,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:57:45,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 21:57:45,864 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:45,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 21:57:45,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 21:57:45,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:57:45,865 INFO L87 Difference]: Start difference. First operand 12538 states and 17866 transitions. Second operand 8 states. [2018-10-24 21:57:48,744 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:59:00,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:59:00,590 INFO L93 Difference]: Finished difference Result 25410 states and 36187 transitions. [2018-10-24 21:59:00,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:59:00,590 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 339 [2018-10-24 21:59:00,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:59:00,675 INFO L225 Difference]: With dead ends: 25410 [2018-10-24 21:59:00,675 INFO L226 Difference]: Without dead ends: 12878 [2018-10-24 21:59:00,741 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 340 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:59:00,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12878 states. [2018-10-24 21:59:01,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12878 to 12876. [2018-10-24 21:59:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12876 states. [2018-10-24 21:59:01,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12876 states to 12876 states and 18213 transitions. [2018-10-24 21:59:01,111 INFO L78 Accepts]: Start accepts. Automaton has 12876 states and 18213 transitions. Word has length 339 [2018-10-24 21:59:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:59:01,112 INFO L481 AbstractCegarLoop]: Abstraction has 12876 states and 18213 transitions. [2018-10-24 21:59:01,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 21:59:01,112 INFO L276 IsEmpty]: Start isEmpty. Operand 12876 states and 18213 transitions. [2018-10-24 21:59:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-10-24 21:59:01,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:59:01,158 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-24 21:59:01,159 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:59:01,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:59:01,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2061657169, now seen corresponding path program 1 times [2018-10-24 21:59:01,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:59:01,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:59:01,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:59:01,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:59:01,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:59:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:59:01,506 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:59:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 180 proven. 266 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-10-24 21:59:01,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:59:01,929 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:59:01,929 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 407 with the following transitions: [2018-10-24 21:59:01,929 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [599], [601], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [788], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [992], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 21:59:01,938 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:59:01,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:59:03,142 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:59:14,113 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:59:14,113 INFO L272 AbstractInterpreter]: Visited 159 different actions 468 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:59:14,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:59:14,120 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:59:17,967 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 77.89% of their original sizes. [2018-10-24 21:59:17,968 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:00:26,588 INFO L413 sIntCurrentIteration]: We have 405 unified AI predicates [2018-10-24 22:00:26,588 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:00:26,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:00:26,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-10-24 22:00:26,588 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:00:26,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 22:00:26,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 22:00:26,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-10-24 22:00:26,590 INFO L87 Difference]: Start difference. First operand 12876 states and 18213 transitions. Second operand 19 states. Received shutdown request... [2018-10-24 22:00:38,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 22:00:38,016 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:00:38,021 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:00:38,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:00:38 BoogieIcfgContainer [2018-10-24 22:00:38,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:00:38,023 INFO L168 Benchmark]: Toolchain (without parser) took 224399.39 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 969.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,024 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 22:00:38,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 354.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,026 INFO L168 Benchmark]: Boogie Preprocessor took 158.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,027 INFO L168 Benchmark]: RCFGBuilder took 6705.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 271.5 MB). Peak memory consumption was 271.5 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,028 INFO L168 Benchmark]: TraceAbstraction took 216031.99 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -859.4 MB). Peak memory consumption was 712.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:00:38,036 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1142.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 354.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -862.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6705.70 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 271.5 MB). Peak memory consumption was 271.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216031.99 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -859.4 MB). Peak memory consumption was 712.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 181]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 181). Cancelled while BasicCegarLoop was constructing difference of abstraction (12876states) and FLOYD_HOARE automaton (currently 9 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (31 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 215.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 117.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 935 SDtfs, 7710 SDslu, 931 SDs, 0 SdLazy, 13061 SolverSat, 3301 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 793 GetRequests, 651 SyntacticMatches, 85 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 70.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12876occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9967108471336336 AbsIntWeakeningRatio, 0.07806191117092867 AbsIntAvgWeakeningVarsNumRemoved, 627.9905787348587 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 85 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1472 NumberOfCodeBlocks, 1472 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1465 ConstructedInterpolants, 0 QuantifiedInterpolants, 1505393 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 544/880 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown