java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:33:13,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:33:13,599 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:33:13,616 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:33:13,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:33:13,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:33:13,619 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:33:13,621 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:33:13,622 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:33:13,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:33:13,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:33:13,625 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:33:13,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:33:13,628 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:33:13,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:33:13,634 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:33:13,637 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:33:13,642 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:33:13,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:33:13,647 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:33:13,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:33:13,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:33:13,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:33:13,661 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:33:13,689 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:33:13,689 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:33:13,690 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:33:13,693 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:33:13,693 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:33:13,693 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:33:13,693 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:33:13,694 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:33:13,694 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:33:13,694 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:33:13,694 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:33:13,694 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:33:13,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:33:13,696 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:33:13,697 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:33:13,697 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:33:13,697 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:33:13,697 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:33:13,697 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:33:13,698 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:33:13,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:33:13,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:33:13,700 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:33:13,700 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:33:13,700 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:33:13,701 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:33:13,701 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:33:13,701 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:33:13,701 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:33:13,701 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:33:13,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:33:13,702 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:33:13,702 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:33:13,702 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:33:13,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:33:13,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:33:13,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:33:13,776 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:33:13,777 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:33:13,777 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c [2018-11-07 00:33:13,847 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75296d02/a26841ebaff942dba697ccdf05cf0787/FLAG4581fc658 [2018-11-07 00:33:14,622 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:33:14,623 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label30_false-unreach-call.c [2018-11-07 00:33:14,649 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75296d02/a26841ebaff942dba697ccdf05cf0787/FLAG4581fc658 [2018-11-07 00:33:14,665 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f75296d02/a26841ebaff942dba697ccdf05cf0787 [2018-11-07 00:33:14,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:33:14,678 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:33:14,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:33:14,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:33:14,683 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:33:14,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:14" (1/1) ... [2018-11-07 00:33:14,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710be24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:14, skipping insertion in model container [2018-11-07 00:33:14,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:33:14" (1/1) ... [2018-11-07 00:33:14,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:33:14,799 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:33:15,492 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:33:15,500 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:33:15,780 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:33:15,803 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:33:15,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15 WrapperNode [2018-11-07 00:33:15,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:33:15,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:33:15,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:33:15,805 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:33:15,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:33:16,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:33:16,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:33:16,014 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:33:16,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... [2018-11-07 00:33:16,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:33:16,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:33:16,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:33:16,191 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:33:16,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:33:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:33:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:33:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:33:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:33:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:33:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:33:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:33:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:33:16,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:33:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:33:16,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:33:22,162 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:33:22,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:22 BoogieIcfgContainer [2018-11-07 00:33:22,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:33:22,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:33:22,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:33:22,169 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:33:22,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:33:14" (1/3) ... [2018-11-07 00:33:22,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:22, skipping insertion in model container [2018-11-07 00:33:22,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:33:15" (2/3) ... [2018-11-07 00:33:22,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0c1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:33:22, skipping insertion in model container [2018-11-07 00:33:22,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:33:22" (3/3) ... [2018-11-07 00:33:22,173 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label30_false-unreach-call.c [2018-11-07 00:33:22,184 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:33:22,193 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:33:22,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:33:22,253 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:33:22,253 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:33:22,253 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:33:22,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:33:22,254 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:33:22,254 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:33:22,254 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:33:22,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:33:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 00:33:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-07 00:33:22,295 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:22,296 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] [2018-11-07 00:33:22,298 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:22,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:22,304 INFO L82 PathProgramCache]: Analyzing trace with hash 328599972, now seen corresponding path program 1 times [2018-11-07 00:33:22,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:22,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:22,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:22,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:22,352 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:22,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:33:22,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:33:22,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:33:22,683 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:22,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:33:22,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:33:22,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:33:22,712 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 00:33:28,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:28,951 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 00:33:28,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:33:28,953 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-07 00:33:28,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:28,980 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 00:33:28,981 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 00:33:28,991 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:33:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 00:33:29,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-11-07 00:33:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-11-07 00:33:29,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-11-07 00:33:29,130 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 22 [2018-11-07 00:33:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:29,131 INFO L480 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-11-07 00:33:29,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:33:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-11-07 00:33:29,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-11-07 00:33:29,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:29,142 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:33:29,142 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:29,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:29,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1272949813, now seen corresponding path program 1 times [2018-11-07 00:33:29,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:29,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:29,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:29,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:29,145 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:33:29,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:33:29,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:33:29,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:29,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:33:29,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:33:29,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:33:29,542 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-11-07 00:33:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:34,426 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-11-07 00:33:34,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:33:34,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-11-07 00:33:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:34,449 INFO L225 Difference]: With dead ends: 3259 [2018-11-07 00:33:34,450 INFO L226 Difference]: Without dead ends: 2168 [2018-11-07 00:33:34,457 INFO L604 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 [2018-11-07 00:33:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-11-07 00:33:34,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-11-07 00:33:34,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-11-07 00:33:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-11-07 00:33:34,560 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 93 [2018-11-07 00:33:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:34,561 INFO L480 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-11-07 00:33:34,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:33:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-11-07 00:33:34,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 00:33:34,576 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:34,576 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:33:34,576 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:34,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:34,579 INFO L82 PathProgramCache]: Analyzing trace with hash 48893395, now seen corresponding path program 1 times [2018-11-07 00:33:34,579 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:34,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:34,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:34,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:34,581 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:33:34,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:33:34,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:33:34,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:34,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:33:34,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:33:34,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:33:34,881 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-11-07 00:33:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:39,629 INFO L93 Difference]: Finished difference Result 7053 states and 12688 transitions. [2018-11-07 00:33:39,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:33:39,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-11-07 00:33:39,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:39,682 INFO L225 Difference]: With dead ends: 7053 [2018-11-07 00:33:39,682 INFO L226 Difference]: Without dead ends: 4917 [2018-11-07 00:33:39,704 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:33:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2018-11-07 00:33:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4877. [2018-11-07 00:33:39,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2018-11-07 00:33:39,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 7891 transitions. [2018-11-07 00:33:39,870 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 7891 transitions. Word has length 121 [2018-11-07 00:33:39,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:39,871 INFO L480 AbstractCegarLoop]: Abstraction has 4877 states and 7891 transitions. [2018-11-07 00:33:39,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:33:39,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 7891 transitions. [2018-11-07 00:33:39,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 00:33:39,874 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:39,874 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:33:39,874 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:39,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:39,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1031937393, now seen corresponding path program 1 times [2018-11-07 00:33:39,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:39,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:39,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:39,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:39,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:33:40,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:33:40,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:33:40,122 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:40,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:33:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:33:40,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:33:40,123 INFO L87 Difference]: Start difference. First operand 4877 states and 7891 transitions. Second operand 6 states. [2018-11-07 00:33:42,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:42,860 INFO L93 Difference]: Finished difference Result 11909 states and 19972 transitions. [2018-11-07 00:33:42,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:33:42,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 00:33:42,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:42,910 INFO L225 Difference]: With dead ends: 11909 [2018-11-07 00:33:42,911 INFO L226 Difference]: Without dead ends: 7038 [2018-11-07 00:33:42,935 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:33:42,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2018-11-07 00:33:43,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6977. [2018-11-07 00:33:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6977 states. [2018-11-07 00:33:43,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9942 transitions. [2018-11-07 00:33:43,148 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9942 transitions. Word has length 139 [2018-11-07 00:33:43,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:43,149 INFO L480 AbstractCegarLoop]: Abstraction has 6977 states and 9942 transitions. [2018-11-07 00:33:43,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:33:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9942 transitions. [2018-11-07 00:33:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-11-07 00:33:43,153 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:43,153 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:33:43,153 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:43,154 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:43,154 INFO L82 PathProgramCache]: Analyzing trace with hash 203002038, now seen corresponding path program 1 times [2018-11-07 00:33:43,154 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:43,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:43,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:43,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:43,156 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:43,516 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:33:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:33:43,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:33:43,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:33:43,659 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:43,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:33:43,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:33:43,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:33:43,661 INFO L87 Difference]: Start difference. First operand 6977 states and 9942 transitions. Second operand 6 states. [2018-11-07 00:33:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:33:47,496 INFO L93 Difference]: Finished difference Result 17709 states and 25496 transitions. [2018-11-07 00:33:47,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:33:47,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2018-11-07 00:33:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:33:47,552 INFO L225 Difference]: With dead ends: 17709 [2018-11-07 00:33:47,552 INFO L226 Difference]: Without dead ends: 10738 [2018-11-07 00:33:47,597 INFO L604 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 [2018-11-07 00:33:47,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10738 states. [2018-11-07 00:33:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10738 to 10702. [2018-11-07 00:33:47,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2018-11-07 00:33:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 14504 transitions. [2018-11-07 00:33:47,881 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 14504 transitions. Word has length 186 [2018-11-07 00:33:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:33:47,882 INFO L480 AbstractCegarLoop]: Abstraction has 10702 states and 14504 transitions. [2018-11-07 00:33:47,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:33:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 14504 transitions. [2018-11-07 00:33:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-11-07 00:33:47,885 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:33:47,886 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:33:47,886 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:33:47,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:47,886 INFO L82 PathProgramCache]: Analyzing trace with hash 773533269, now seen corresponding path program 1 times [2018-11-07 00:33:47,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:33:47,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:47,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:33:47,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:33:47,888 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:33:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:33:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 83 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:33:48,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:33:48,188 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:33:48,189 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-11-07 00:33:48,192 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [677], [681], [685], [689], [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], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:33:48,282 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:33:48,282 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:33:51,955 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:33:51,957 INFO L272 AbstractInterpreter]: Visited 135 different actions 135 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:33:51,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:33:51,968 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:33:54,053 INFO L227 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 77.45% of their original sizes. [2018-11-07 00:33:54,053 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:33:54,660 INFO L415 sIntCurrentIteration]: We unified 222 AI predicates to 222 [2018-11-07 00:33:54,660 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:33:54,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:33:54,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-07 00:33:54,662 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:33:54,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:33:54,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:33:54,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:33:54,663 INFO L87 Difference]: Start difference. First operand 10702 states and 14504 transitions. Second operand 8 states. [2018-11-07 00:33:57,371 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:34:49,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:34:49,973 INFO L93 Difference]: Finished difference Result 21738 states and 29396 transitions. [2018-11-07 00:34:49,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:34:49,973 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2018-11-07 00:34:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:34:50,016 INFO L225 Difference]: With dead ends: 21738 [2018-11-07 00:34:50,017 INFO L226 Difference]: Without dead ends: 11042 [2018-11-07 00:34:50,049 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:34:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2018-11-07 00:34:50,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 11040. [2018-11-07 00:34:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11040 states. [2018-11-07 00:34:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11040 states to 11040 states and 14851 transitions. [2018-11-07 00:34:50,306 INFO L78 Accepts]: Start accepts. Automaton has 11040 states and 14851 transitions. Word has length 223 [2018-11-07 00:34:50,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:34:50,306 INFO L480 AbstractCegarLoop]: Abstraction has 11040 states and 14851 transitions. [2018-11-07 00:34:50,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:34:50,307 INFO L276 IsEmpty]: Start isEmpty. Operand 11040 states and 14851 transitions. [2018-11-07 00:34:50,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-11-07 00:34:50,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:34:50,314 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:34:50,314 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:34:50,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:34:50,315 INFO L82 PathProgramCache]: Analyzing trace with hash -159997069, now seen corresponding path program 1 times [2018-11-07 00:34:50,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:34:50,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:34:50,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:34:50,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:34:50,316 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:34:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:34:50,821 WARN L179 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-07 00:34:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 117 proven. 116 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-11-07 00:34:51,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:34:51,101 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:34:51,101 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-11-07 00:34:51,101 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [255], [257], [260], [268], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [676], [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], [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], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:34:51,108 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:34:51,108 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:34:52,241 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:35:06,797 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:35:06,798 INFO L272 AbstractInterpreter]: Visited 139 different actions 537 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:35:06,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:35:06,805 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:35:10,140 INFO L227 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 79.91% of their original sizes. [2018-11-07 00:35:10,141 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:36:18,299 INFO L415 sIntCurrentIteration]: We unified 314 AI predicates to 314 [2018-11-07 00:36:18,300 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:36:18,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:36:18,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [7] total 27 [2018-11-07 00:36:18,300 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:36:18,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 00:36:18,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 00:36:18,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=371, Unknown=0, NotChecked=0, Total=462 [2018-11-07 00:36:18,302 INFO L87 Difference]: Start difference. First operand 11040 states and 14851 transitions. Second operand 22 states. Received shutdown request... [2018-11-07 00:37:11,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 00:37:11,591 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:37:11,598 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:37:11,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:37:11 BoogieIcfgContainer [2018-11-07 00:37:11,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:37:11,600 INFO L168 Benchmark]: Toolchain (without parser) took 236922.61 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -846.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 00:37:11,601 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:37:11,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1125.11 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:37:11,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 208.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 00:37:11,603 INFO L168 Benchmark]: Boogie Preprocessor took 176.63 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:37:11,604 INFO L168 Benchmark]: RCFGBuilder took 5973.42 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: 259.8 MB). Peak memory consumption was 259.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:37:11,605 INFO L168 Benchmark]: TraceAbstraction took 229434.05 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -309.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 00:37:11,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1125.11 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 208.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.63 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5973.42 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: 259.8 MB). Peak memory consumption was 259.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229434.05 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -309.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (11040states) and FLOYD_HOARE automaton (currently 15 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (143 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 229.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 131.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 963 SDtfs, 9599 SDslu, 839 SDs, 0 SdLazy, 12411 SolverSat, 4203 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 58.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 592 GetRequests, 426 SyntacticMatches, 100 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 71.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11040occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9954405959333766 AbsIntWeakeningRatio, 0.10820895522388059 AbsIntAvgWeakeningVarsNumRemoved, 554.5876865671642 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 165 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1099 NumberOfCodeBlocks, 1099 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1092 ConstructedInterpolants, 0 QuantifiedInterpolants, 1005393 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 311/440 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown