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/Problem17_label43_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:06:49,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:06:49,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:06:49,041 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:06:49,041 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:06:49,042 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:06:49,044 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:06:49,045 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:06:49,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:06:49,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:06:49,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:06:49,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:06:49,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:06:49,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:06:49,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:06:49,062 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:06:49,063 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:06:49,065 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:06:49,067 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:06:49,068 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:06:49,070 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:06:49,071 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:06:49,073 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:06:49,079 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 02:06:49,080 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 02:06:49,081 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 02:06:49,081 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 02:06:49,082 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 02:06:49,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:06:49,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:06:49,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:06:49,111 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:06:49,112 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:06:49,112 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:06:49,112 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:06:49,112 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:06:49,113 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:06:49,115 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:06:49,115 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:06:49,116 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:06:49,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:06:49,117 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:06:49,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:06:49,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:06:49,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:06:49,118 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:06:49,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:06:49,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:06:49,118 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:06:49,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:06:49,119 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:06:49,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:06:49,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:06:49,120 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:06:49,120 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:06:49,120 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:06:49,120 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:06:49,120 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:06:49,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:06:49,121 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:06:49,121 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:06:49,121 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:06:49,184 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:06:49,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:06:49,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:06:49,206 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:06:49,206 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:06:49,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label43_true-unreach-call.c [2018-10-24 02:06:49,275 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1f617dde/a5575cb874964f1a8a84247268ef165a/FLAG00062a132 [2018-10-24 02:06:50,072 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:06:50,073 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label43_true-unreach-call.c [2018-10-24 02:06:50,096 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1f617dde/a5575cb874964f1a8a84247268ef165a/FLAG00062a132 [2018-10-24 02:06:50,112 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d1f617dde/a5575cb874964f1a8a84247268ef165a [2018-10-24 02:06:50,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:06:50,126 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:06:50,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:06:50,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:06:50,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:06:50,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:50" (1/1) ... [2018-10-24 02:06:50,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3894aa01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:50, skipping insertion in model container [2018-10-24 02:06:50,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:06:50" (1/1) ... [2018-10-24 02:06:50,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:06:50,262 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:06:51,249 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:06:51,254 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:06:51,719 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:06:51,744 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:06:51,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51 WrapperNode [2018-10-24 02:06:51,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:06:51,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:06:51,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:06:51,747 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:06:51,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:51,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:06:52,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:06:52,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:06:52,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:06:52,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (1/1) ... [2018-10-24 02:06:52,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:06:52,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:06:52,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:06:52,524 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:06:52,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (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 02:06:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:06:52,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:06:52,600 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:06:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:06:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:06:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:06:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:06:52,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:06:52,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:06:52,602 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:07:04,378 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:07:04,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:07:04 BoogieIcfgContainer [2018-10-24 02:07:04,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:07:04,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:07:04,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:07:04,385 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:07:04,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:06:50" (1/3) ... [2018-10-24 02:07:04,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb3c15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:07:04, skipping insertion in model container [2018-10-24 02:07:04,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:06:51" (2/3) ... [2018-10-24 02:07:04,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb3c15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:07:04, skipping insertion in model container [2018-10-24 02:07:04,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:07:04" (3/3) ... [2018-10-24 02:07:04,389 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label43_true-unreach-call.c [2018-10-24 02:07:04,399 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:07:04,408 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:07:04,426 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:07:04,471 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:07:04,471 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:07:04,471 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:07:04,471 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:07:04,472 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:07:04,472 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:07:04,472 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:07:04,472 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:07:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 02:07:04,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-24 02:07:04,520 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:07:04,522 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, 1, 1, 1, 1] [2018-10-24 02:07:04,524 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:07:04,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:04,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1064773166, now seen corresponding path program 1 times [2018-10-24 02:07:04,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:07:04,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:04,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:04,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:04,586 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:07:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:05,013 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 02:07:05,015 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:07:05,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 02:07:05,016 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:07:05,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 02:07:05,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 02:07:05,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:07:05,041 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 02:07:14,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:07:14,937 INFO L93 Difference]: Finished difference Result 2118 states and 3937 transitions. [2018-10-24 02:07:14,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 02:07:14,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 69 [2018-10-24 02:07:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:07:14,969 INFO L225 Difference]: With dead ends: 2118 [2018-10-24 02:07:14,969 INFO L226 Difference]: Without dead ends: 1508 [2018-10-24 02:07:14,980 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 02:07:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2018-10-24 02:07:15,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1039. [2018-10-24 02:07:15,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-10-24 02:07:15,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1596 transitions. [2018-10-24 02:07:15,126 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1596 transitions. Word has length 69 [2018-10-24 02:07:15,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:07:15,127 INFO L481 AbstractCegarLoop]: Abstraction has 1039 states and 1596 transitions. [2018-10-24 02:07:15,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 02:07:15,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1596 transitions. [2018-10-24 02:07:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-24 02:07:15,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:07:15,145 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, 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 02:07:15,146 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:07:15,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:15,146 INFO L82 PathProgramCache]: Analyzing trace with hash -213445479, now seen corresponding path program 1 times [2018-10-24 02:07:15,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:07:15,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:15,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:15,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:07:15,150 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:07:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:07:15,674 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:07:15,675 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:07:15,676 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-10-24 02:07:15,678 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1162], [1164], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:07:15,748 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:07:15,748 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:07:17,382 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:07:38,304 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:07:38,305 INFO L272 AbstractInterpreter]: Visited 83 different actions 543 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 02:07:38,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:07:38,316 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:07:38,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:07:38,317 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:07:38,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:07:38,325 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:07:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:07:38,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:07:44,981 WARN L179 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 42 [2018-10-24 02:07:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:07:45,221 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:07:47,896 WARN L179 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 39 DAG size of output: 13 [2018-10-24 02:07:48,362 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-10-24 02:07:48,771 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:07:48,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 02:07:48,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-10-24 02:07:48,806 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:07:48,809 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:07:48,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:07:48,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-24 02:07:48,810 INFO L87 Difference]: Start difference. First operand 1039 states and 1596 transitions. Second operand 6 states. [2018-10-24 02:08:18,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:18,716 INFO L93 Difference]: Finished difference Result 3455 states and 5553 transitions. [2018-10-24 02:08:18,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:08:18,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-10-24 02:08:18,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:18,746 INFO L225 Difference]: With dead ends: 3455 [2018-10-24 02:08:18,746 INFO L226 Difference]: Without dead ends: 2422 [2018-10-24 02:08:18,755 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 283 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-10-24 02:08:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2422 states. [2018-10-24 02:08:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2422 to 2414. [2018-10-24 02:08:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2414 states. [2018-10-24 02:08:18,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 3757 transitions. [2018-10-24 02:08:18,850 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 3757 transitions. Word has length 144 [2018-10-24 02:08:18,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:18,850 INFO L481 AbstractCegarLoop]: Abstraction has 2414 states and 3757 transitions. [2018-10-24 02:08:18,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:08:18,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 3757 transitions. [2018-10-24 02:08:18,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 02:08:18,863 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:18,863 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, 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] [2018-10-24 02:08:18,864 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:18,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:18,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1594999713, now seen corresponding path program 1 times [2018-10-24 02:08:18,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:18,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:18,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:18,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:18,866 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:19,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:19,149 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:08:19,149 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2018-10-24 02:08:19,149 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1162], [1164], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:08:19,155 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:08:19,155 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:08:20,866 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:08:29,073 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:08:29,073 INFO L272 AbstractInterpreter]: Visited 96 different actions 274 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 02:08:29,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:29,111 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:08:29,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:29,111 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:08:29,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:29,125 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:08:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:29,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:08:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:29,398 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:08:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:29,629 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:08:29,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-10-24 02:08:29,629 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:08:29,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:08:29,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:08:29,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:08:29,631 INFO L87 Difference]: Start difference. First operand 2414 states and 3757 transitions. Second operand 3 states. [2018-10-24 02:08:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:08:36,670 INFO L93 Difference]: Finished difference Result 6999 states and 11112 transitions. [2018-10-24 02:08:36,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:08:36,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2018-10-24 02:08:36,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:08:36,703 INFO L225 Difference]: With dead ends: 6999 [2018-10-24 02:08:36,703 INFO L226 Difference]: Without dead ends: 4591 [2018-10-24 02:08:36,717 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 313 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:08:36,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2018-10-24 02:08:36,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4590. [2018-10-24 02:08:36,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4590 states. [2018-10-24 02:08:36,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 7102 transitions. [2018-10-24 02:08:36,862 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 7102 transitions. Word has length 157 [2018-10-24 02:08:36,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:08:36,862 INFO L481 AbstractCegarLoop]: Abstraction has 4590 states and 7102 transitions. [2018-10-24 02:08:36,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:08:36,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 7102 transitions. [2018-10-24 02:08:36,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-24 02:08:36,869 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:08:36,869 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, 3, 3, 3, 3, 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] [2018-10-24 02:08:36,869 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:08:36,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:36,870 INFO L82 PathProgramCache]: Analyzing trace with hash -963850834, now seen corresponding path program 1 times [2018-10-24 02:08:36,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:08:36,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:36,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:36,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:08:36,871 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:08:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:37,239 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:08:37,664 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 125 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 02:08:37,665 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:37,665 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:08:37,665 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-10-24 02:08:37,666 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1162], [1164], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1290], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:08:37,673 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:08:37,674 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:08:38,430 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:08:56,894 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:08:56,894 INFO L272 AbstractInterpreter]: Visited 99 different actions 562 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 02:08:56,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:08:56,902 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:08:56,902 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:08:56,902 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:08:56,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:08:56,919 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:08:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:08:57,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:08:57,096 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:57,096 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:08:57,407 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:08:57,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 02:08:57,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 02:08:57,440 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 02:08:57,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 02:08:57,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 02:08:57,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-24 02:08:57,442 INFO L87 Difference]: Start difference. First operand 4590 states and 7102 transitions. Second operand 9 states. [2018-10-24 02:09:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:09:05,475 INFO L93 Difference]: Finished difference Result 11490 states and 17905 transitions. [2018-10-24 02:09:05,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 02:09:05,477 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 234 [2018-10-24 02:09:05,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:09:05,512 INFO L225 Difference]: With dead ends: 11490 [2018-10-24 02:09:05,513 INFO L226 Difference]: Without dead ends: 6420 [2018-10-24 02:09:05,534 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 466 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-10-24 02:09:05,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6420 states. [2018-10-24 02:09:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6420 to 6408. [2018-10-24 02:09:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6408 states. [2018-10-24 02:09:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6408 states to 6408 states and 7903 transitions. [2018-10-24 02:09:05,723 INFO L78 Accepts]: Start accepts. Automaton has 6408 states and 7903 transitions. Word has length 234 [2018-10-24 02:09:05,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:09:05,723 INFO L481 AbstractCegarLoop]: Abstraction has 6408 states and 7903 transitions. [2018-10-24 02:09:05,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 02:09:05,723 INFO L276 IsEmpty]: Start isEmpty. Operand 6408 states and 7903 transitions. [2018-10-24 02:09:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-24 02:09:05,729 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:09:05,729 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:09:05,729 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:09:05,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:09:05,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1177890901, now seen corresponding path program 1 times [2018-10-24 02:09:05,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:09:05,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:09:05,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:09:05,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:09:05,731 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:09:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:09:05,977 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 02:09:05,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:09:05,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:09:05,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:09:05,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:09:05,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:09:05,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:09:05,979 INFO L87 Difference]: Start difference. First operand 6408 states and 7903 transitions. Second operand 3 states. [2018-10-24 02:09:10,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:09:10,320 INFO L93 Difference]: Finished difference Result 17169 states and 21201 transitions. [2018-10-24 02:09:10,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:09:10,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2018-10-24 02:09:10,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:09:10,365 INFO L225 Difference]: With dead ends: 17169 [2018-10-24 02:09:10,366 INFO L226 Difference]: Without dead ends: 8930 [2018-10-24 02:09:10,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:09:10,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2018-10-24 02:09:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8490. [2018-10-24 02:09:10,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8490 states. [2018-10-24 02:09:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8490 states to 8490 states and 10058 transitions. [2018-10-24 02:09:10,590 INFO L78 Accepts]: Start accepts. Automaton has 8490 states and 10058 transitions. Word has length 246 [2018-10-24 02:09:10,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:09:10,591 INFO L481 AbstractCegarLoop]: Abstraction has 8490 states and 10058 transitions. [2018-10-24 02:09:10,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:09:10,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8490 states and 10058 transitions. [2018-10-24 02:09:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-24 02:09:10,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:09:10,599 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 02:09:10,600 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:09:10,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:09:10,600 INFO L82 PathProgramCache]: Analyzing trace with hash -862340150, now seen corresponding path program 1 times [2018-10-24 02:09:10,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:09:10,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:09:10,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:09:10,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:09:10,602 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:09:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:09:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 02:09:11,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:09:11,026 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:09:11,026 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 318 with the following transitions: [2018-10-24 02:09:11,029 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1142], [1150], [1158], [1162], [1164], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1654], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 02:09:11,036 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:09:11,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:09:12,041 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 02:10:16,468 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 02:10:16,469 INFO L272 AbstractInterpreter]: Visited 169 different actions 1328 times. Merged at 7 different actions 54 times. Widened at 1 different actions 2 times. Found 8 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-24 02:10:16,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:10:16,473 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 02:10:16,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:10:16,473 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 02:10:16,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:10:16,481 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 02:10:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:10:16,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 02:10:19,073 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 129 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 02:10:19,074 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 02:10:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 129 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:10:20,065 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 02:10:20,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 16 [2018-10-24 02:10:20,065 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 02:10:20,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 02:10:20,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 02:10:20,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=169, Unknown=1, NotChecked=0, Total=240 [2018-10-24 02:10:20,067 INFO L87 Difference]: Start difference. First operand 8490 states and 10058 transitions. Second operand 10 states. Received shutdown request... [2018-10-24 02:10:51,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 02:10:51,944 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:10:51,951 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:10:51,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:10:51 BoogieIcfgContainer [2018-10-24 02:10:51,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:10:51,953 INFO L168 Benchmark]: Toolchain (without parser) took 241828.06 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -568.2 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,954 INFO L168 Benchmark]: CDTParser took 0.26 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 02:10:51,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1618.81 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 469.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,956 INFO L168 Benchmark]: Boogie Preprocessor took 307.36 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,957 INFO L168 Benchmark]: RCFGBuilder took 11856.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.1 MB). Peak memory consumption was 481.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,958 INFO L168 Benchmark]: TraceAbstraction took 227571.01 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -276.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 02:10:51,963 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1618.81 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 469.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 307.36 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11856.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 481.1 MB). Peak memory consumption was 481.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227571.01 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -276.6 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 194]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 194). Cancelled while BasicCegarLoop was constructing difference of abstraction (8490states) and FLOYD_HOARE automaton (currently 11 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (4686 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 227.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 91.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2584 SDtfs, 8833 SDslu, 1239 SDs, 0 SdLazy, 17412 SolverSat, 4900 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 84.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1764 GetRequests, 1697 SyntacticMatches, 10 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8490occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 117.2s AbstIntTime, 4 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 930 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 16.6s InterpolantComputationTime, 2019 NumberOfCodeBlocks, 2019 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2857 ConstructedInterpolants, 173 QuantifiedInterpolants, 3117422 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1546 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 14 InterpolantComputations, 5 PerfectInterpolantSequences, 1593/1817 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown