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/Problem15_label02_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:22:26,519 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:22:26,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:22:26,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:22:26,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:22:26,536 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:22:26,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:22:26,540 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:22:26,541 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:22:26,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:22:26,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:22:26,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:22:26,544 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:22:26,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:22:26,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:22:26,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:22:26,548 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:22:26,550 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:22:26,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:22:26,554 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:22:26,555 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:22:26,556 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:22:26,559 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:22:26,570 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 00:22:26,586 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:22:26,586 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:22:26,587 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:22:26,587 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:22:26,587 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:22:26,587 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:22:26,588 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:22:26,588 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:22:26,588 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:22:26,588 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:22:26,588 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:22:26,589 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:22:26,589 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:22:26,589 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:22:26,590 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:22:26,590 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:22:26,590 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:22:26,590 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:22:26,590 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:22:26,591 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:22:26,591 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:22:26,591 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:22:26,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:22:26,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:22:26,592 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:22:26,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:22:26,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:22:26,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:22:26,592 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:22:26,593 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:22:26,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:22:26,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:22:26,593 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:22:26,593 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:22:26,637 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:22:26,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:22:26,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:22:26,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:22:26,657 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:22:26,658 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-11-07 00:22:26,715 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe18b3ab/a586a3bc55e44ca6862852b4e4299a0d/FLAGe9a1739b5 [2018-11-07 00:22:27,371 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:22:27,372 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label02_false-unreach-call.c [2018-11-07 00:22:27,391 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe18b3ab/a586a3bc55e44ca6862852b4e4299a0d/FLAGe9a1739b5 [2018-11-07 00:22:27,407 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe18b3ab/a586a3bc55e44ca6862852b4e4299a0d [2018-11-07 00:22:27,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:22:27,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:22:27,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:22:27,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:22:27,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:22:27,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:22:27" (1/1) ... [2018-11-07 00:22:27,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca78f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:27, skipping insertion in model container [2018-11-07 00:22:27,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:22:27" (1/1) ... [2018-11-07 00:22:27,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:22:27,541 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:22:28,361 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:22:28,366 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:22:28,658 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:22:28,680 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:22:28,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28 WrapperNode [2018-11-07 00:22:28,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:22:28,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:22:28,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:22:28,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:22:28,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:28,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:28,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:22:28,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:22:28,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:22:28,919 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:22:28,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:28,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:28,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:28,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:29,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:29,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:29,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (1/1) ... [2018-11-07 00:22:29,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:22:29,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:22:29,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:22:29,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:22:29,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (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 00:22:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:22:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:22:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:22:29,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:22:29,141 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:22:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:22:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:22:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:22:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:22:29,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:22:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:22:35,266 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:22:35,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:22:35 BoogieIcfgContainer [2018-11-07 00:22:35,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:22:35,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:22:35,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:22:35,274 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:22:35,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:22:27" (1/3) ... [2018-11-07 00:22:35,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:22:35, skipping insertion in model container [2018-11-07 00:22:35,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:22:28" (2/3) ... [2018-11-07 00:22:35,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4af4d49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:22:35, skipping insertion in model container [2018-11-07 00:22:35,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:22:35" (3/3) ... [2018-11-07 00:22:35,277 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label02_false-unreach-call.c [2018-11-07 00:22:35,286 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:22:35,294 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:22:35,309 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:22:35,352 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:22:35,352 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:22:35,352 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:22:35,352 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:22:35,352 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:22:35,353 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:22:35,353 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:22:35,353 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:22:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 00:22:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-07 00:22:35,398 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:35,399 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] [2018-11-07 00:22:35,401 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:35,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:35,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1104690921, now seen corresponding path program 1 times [2018-11-07 00:22:35,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:35,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:35,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:35,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:35,459 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:35,806 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 00:22:35,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:35,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:22:35,809 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:35,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:22:35,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:22:35,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:22:35,835 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 00:22:43,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:43,384 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 00:22:43,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:22:43,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-07 00:22:43,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:43,413 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 00:22:43,413 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 00:22:43,424 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 00:22:43,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 00:22:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-11-07 00:22:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-11-07 00:22:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-11-07 00:22:43,547 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 35 [2018-11-07 00:22:43,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:43,549 INFO L480 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-11-07 00:22:43,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:22:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-11-07 00:22:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-07 00:22:43,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:43,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:43,566 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:43,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:43,568 INFO L82 PathProgramCache]: Analyzing trace with hash 647598068, now seen corresponding path program 1 times [2018-11-07 00:22:43,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:43,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:43,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:43,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:43,571 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:43,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:43,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:22:43,958 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:43,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:22:43,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:22:43,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:22:43,961 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-11-07 00:22:49,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:49,506 INFO L93 Difference]: Finished difference Result 3246 states and 5588 transitions. [2018-11-07 00:22:49,518 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:22:49,518 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 108 [2018-11-07 00:22:49,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:49,536 INFO L225 Difference]: With dead ends: 3246 [2018-11-07 00:22:49,536 INFO L226 Difference]: Without dead ends: 2161 [2018-11-07 00:22:49,543 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:22:49,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2018-11-07 00:22:49,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2114. [2018-11-07 00:22:49,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-11-07 00:22:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-11-07 00:22:49,628 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 108 [2018-11-07 00:22:49,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:49,629 INFO L480 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-11-07 00:22:49,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:22:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-11-07 00:22:49,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-11-07 00:22:49,635 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:49,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:22:49,636 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:49,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash -858002428, now seen corresponding path program 1 times [2018-11-07 00:22:49,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:49,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:49,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:49,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:49,638 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:22:49,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:22:49,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 00:22:49,849 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:22:49,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 00:22:49,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 00:22:49,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:22:49,850 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-11-07 00:22:55,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:22:55,197 INFO L93 Difference]: Finished difference Result 7944 states and 12441 transitions. [2018-11-07 00:22:55,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 00:22:55,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-11-07 00:22:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:22:55,247 INFO L225 Difference]: With dead ends: 7944 [2018-11-07 00:22:55,248 INFO L226 Difference]: Without dead ends: 5836 [2018-11-07 00:22:55,274 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 00:22:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5836 states. [2018-11-07 00:22:55,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5836 to 5834. [2018-11-07 00:22:55,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5834 states. [2018-11-07 00:22:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8173 transitions. [2018-11-07 00:22:55,476 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8173 transitions. Word has length 116 [2018-11-07 00:22:55,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:22:55,477 INFO L480 AbstractCegarLoop]: Abstraction has 5834 states and 8173 transitions. [2018-11-07 00:22:55,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 00:22:55,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8173 transitions. [2018-11-07 00:22:55,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-11-07 00:22:55,489 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:22:55,489 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 00:22:55,489 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:22:55,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:55,491 INFO L82 PathProgramCache]: Analyzing trace with hash 833656258, now seen corresponding path program 1 times [2018-11-07 00:22:55,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:22:55,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:55,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:22:55,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:22:55,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:22:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:22:55,798 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:22:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 56 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:22:55,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:22:55,988 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:22:55,989 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-11-07 00:22:55,991 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:22:56,064 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:22:56,065 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:22:58,044 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:22:58,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:22:58,859 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 00:22:58,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:22:58,903 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:23:00,889 INFO L227 lantSequenceWeakener]: Weakened 197 states. On average, predicates are now at 77.77% of their original sizes. [2018-11-07 00:23:00,890 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:23:01,491 INFO L415 sIntCurrentIteration]: We unified 204 AI predicates to 204 [2018-11-07 00:23:01,491 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:23:01,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:23:01,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 00:23:01,492 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:23:01,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:23:01,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:23:01,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:23:01,494 INFO L87 Difference]: Start difference. First operand 5834 states and 8173 transitions. Second operand 8 states. [2018-11-07 00:24:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:24:40,889 INFO L93 Difference]: Finished difference Result 11972 states and 16730 transitions. [2018-11-07 00:24:40,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:24:40,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 205 [2018-11-07 00:24:40,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:24:40,925 INFO L225 Difference]: With dead ends: 11972 [2018-11-07 00:24:40,926 INFO L226 Difference]: Without dead ends: 6144 [2018-11-07 00:24:40,958 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 206 GetRequests, 198 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 00:24:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2018-11-07 00:24:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 6142. [2018-11-07 00:24:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6142 states. [2018-11-07 00:24:41,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6142 states to 6142 states and 8490 transitions. [2018-11-07 00:24:41,151 INFO L78 Accepts]: Start accepts. Automaton has 6142 states and 8490 transitions. Word has length 205 [2018-11-07 00:24:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:24:41,152 INFO L480 AbstractCegarLoop]: Abstraction has 6142 states and 8490 transitions. [2018-11-07 00:24:41,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:24:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 6142 states and 8490 transitions. [2018-11-07 00:24:41,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-11-07 00:24:41,165 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:24:41,165 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 00:24:41,166 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:24:41,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:41,166 INFO L82 PathProgramCache]: Analyzing trace with hash -187310056, now seen corresponding path program 1 times [2018-11-07 00:24:41,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:24:41,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:41,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:24:41,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:24:41,171 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:24:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:24:41,593 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:24:41,818 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 90 proven. 212 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-07 00:24:41,819 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:24:41,819 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:24:41,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 302 with the following transitions: [2018-11-07 00:24:41,820 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [253], [255], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 00:24:41,825 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:24:41,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:24:42,966 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:24:50,089 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:24:50,089 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:24:50,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:24:50,099 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:24:55,079 INFO L227 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 79.63% of their original sizes. [2018-11-07 00:24:55,079 INFO L413 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-11-07 00:26:07,065 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:26:07,069 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:26:07,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:26:07 BoogieIcfgContainer [2018-11-07 00:26:07,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:26:07,071 INFO L168 Benchmark]: Toolchain (without parser) took 219652.40 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,072 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:26:07,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1260.30 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: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 237.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.0 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,075 INFO L168 Benchmark]: Boogie Preprocessor took 147.22 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,076 INFO L168 Benchmark]: RCFGBuilder took 6200.95 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: 300.8 MB). Peak memory consumption was 300.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,081 INFO L168 Benchmark]: TraceAbstraction took 211801.72 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -952.3 MB). Peak memory consumption was 927.2 MB. Max. memory is 7.1 GB. [2018-11-07 00:26:07,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 1260.30 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: 108.3 MB). Peak memory consumption was 108.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 237.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 743.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.0 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.22 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6200.95 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: 300.8 MB). Peak memory consumption was 300.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211801.72 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -952.3 MB). Peak memory consumption was 927.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 91]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 91). Cancelled while BasicCegarLoop was analyzing trace of length 302 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 211.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 118.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1500 SDtfs, 3436 SDslu, 1141 SDs, 0 SdLazy, 7769 SolverSat, 1674 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 226 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6142occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9951511099608924 AbsIntWeakeningRatio, 0.11507936507936507 AbsIntAvgWeakeningVarsNumRemoved, 379.2857142857143 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 74 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 460 ConstructedInterpolants, 0 QuantifiedInterpolants, 227770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 117/182 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown