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/Problem13_label43_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:21:42,104 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:21:42,107 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:21:42,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:21:42,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:21:42,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:21:42,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:21:42,131 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:21:42,133 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:21:42,134 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:21:42,135 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:21:42,135 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:21:42,136 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:21:42,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:21:42,138 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:21:42,139 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:21:42,140 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:21:42,142 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:21:42,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:21:42,146 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:21:42,147 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:21:42,148 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:21:42,151 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 22:21:42,158 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 22:21:42,158 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 22:21:42,159 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 22:21:42,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 22:21:42,161 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 [2018-10-23 22:21:42,185 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:21:42,186 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:21:42,187 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:21:42,188 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:21:42,188 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:21:42,188 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:21:42,188 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:21:42,188 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:21:42,189 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:21:42,189 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:21:42,190 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:21:42,190 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:21:42,191 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:21:42,192 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:21:42,192 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:21:42,192 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:21:42,192 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:21:42,192 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:21:42,193 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:21:42,193 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:21:42,193 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:21:42,193 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:21:42,193 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:21:42,194 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:21:42,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:21:42,195 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:21:42,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:21:42,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:21:42,196 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:21:42,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:21:42,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:21:42,197 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:21:42,197 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:21:42,197 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:21:42,242 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:21:42,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:21:42,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:21:42,263 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:21:42,263 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:21:42,264 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-10-23 22:21:42,342 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/973b0764f/3a4001610c9f431aa08fa1ee0a1ad5ec/FLAGc252407ea [2018-10-23 22:21:43,299 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:21:43,300 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label43_false-unreach-call.c [2018-10-23 22:21:43,352 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/973b0764f/3a4001610c9f431aa08fa1ee0a1ad5ec/FLAGc252407ea [2018-10-23 22:21:43,372 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/973b0764f/3a4001610c9f431aa08fa1ee0a1ad5ec [2018-10-23 22:21:43,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:21:43,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:21:43,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:21:43,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:21:43,396 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:21:43,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:21:43" (1/1) ... [2018-10-23 22:21:43,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b326c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:43, skipping insertion in model container [2018-10-23 22:21:43,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:21:43" (1/1) ... [2018-10-23 22:21:43,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:21:43,611 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:21:44,982 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:21:44,987 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:21:45,787 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:21:45,825 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:21:45,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45 WrapperNode [2018-10-23 22:21:45,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:21:45,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:21:45,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:21:45,828 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:21:45,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:45,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:21:46,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:21:46,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:21:46,454 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:21:46,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (1/1) ... [2018-10-23 22:21:46,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:21:46,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:21:46,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:21:46,921 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:21:46,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (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 [2018-10-23 22:21:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:21:47,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-23 22:21:47,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-23 22:21:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-23 22:21:47,000 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-23 22:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-23 22:21:47,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-23 22:21:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:21:47,001 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:21:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:21:47,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:21:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:21:47,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:21:59,940 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:21:59,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:21:59 BoogieIcfgContainer [2018-10-23 22:21:59,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:21:59,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:21:59,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:21:59,945 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:21:59,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:21:43" (1/3) ... [2018-10-23 22:21:59,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf2b5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:21:59, skipping insertion in model container [2018-10-23 22:21:59,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:21:45" (2/3) ... [2018-10-23 22:21:59,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf2b5a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:21:59, skipping insertion in model container [2018-10-23 22:21:59,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:21:59" (3/3) ... [2018-10-23 22:21:59,949 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label43_false-unreach-call.c [2018-10-23 22:21:59,959 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:21:59,970 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:21:59,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:22:00,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:22:00,048 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:22:00,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:22:00,048 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:22:00,048 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:22:00,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:22:00,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:22:00,049 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:22:00,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-23 22:22:00,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-23 22:22:00,126 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:00,127 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] [2018-10-23 22:22:00,131 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:00,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:00,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2074424869, now seen corresponding path program 1 times [2018-10-23 22:22:00,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:00,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:00,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:00,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:00,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:00,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:00,580 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:22:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:22:00,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:22:00,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:22:00,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:00,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:22:00,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:22:00,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:22:00,770 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-23 22:22:13,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:22:13,685 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-10-23 22:22:13,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:22:13,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-10-23 22:22:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:22:13,724 INFO L225 Difference]: With dead ends: 3101 [2018-10-23 22:22:13,724 INFO L226 Difference]: Without dead ends: 1979 [2018-10-23 22:22:13,737 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:22:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-10-23 22:22:13,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-10-23 22:22:13,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-23 22:22:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-10-23 22:22:13,927 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 25 [2018-10-23 22:22:13,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:22:13,927 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-10-23 22:22:13,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:22:13,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-10-23 22:22:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-23 22:22:13,934 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:13,934 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:22:13,935 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:13,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:13,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1247410474, now seen corresponding path program 1 times [2018-10-23 22:22:13,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:13,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:13,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:13,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:13,937 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:14,295 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:22:14,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:22:14,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 22:22:14,295 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:14,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 22:22:14,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 22:22:14,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 22:22:14,298 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-10-23 22:22:34,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:22:34,450 INFO L93 Difference]: Finished difference Result 5717 states and 10466 transitions. [2018-10-23 22:22:34,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 22:22:34,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2018-10-23 22:22:34,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:22:34,479 INFO L225 Difference]: With dead ends: 5717 [2018-10-23 22:22:34,479 INFO L226 Difference]: Without dead ends: 3764 [2018-10-23 22:22:34,487 INFO L605 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 [2018-10-23 22:22:34,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2018-10-23 22:22:34,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3679. [2018-10-23 22:22:34,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3679 states. [2018-10-23 22:22:34,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 6042 transitions. [2018-10-23 22:22:34,628 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 6042 transitions. Word has length 101 [2018-10-23 22:22:34,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:22:34,629 INFO L481 AbstractCegarLoop]: Abstraction has 3679 states and 6042 transitions. [2018-10-23 22:22:34,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 22:22:34,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 6042 transitions. [2018-10-23 22:22:34,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-23 22:22:34,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:34,640 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:22:34,642 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:34,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1584202367, now seen corresponding path program 1 times [2018-10-23 22:22:34,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:34,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:34,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:34,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:34,647 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:22:34,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:22:34,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:22:34,890 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:34,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:22:34,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:22:34,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:22:34,891 INFO L87 Difference]: Start difference. First operand 3679 states and 6042 transitions. Second operand 6 states. [2018-10-23 22:22:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:22:43,997 INFO L93 Difference]: Finished difference Result 10857 states and 18392 transitions. [2018-10-23 22:22:44,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:22:44,000 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-10-23 22:22:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:22:44,045 INFO L225 Difference]: With dead ends: 10857 [2018-10-23 22:22:44,045 INFO L226 Difference]: Without dead ends: 7184 [2018-10-23 22:22:44,060 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:22:44,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2018-10-23 22:22:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 7133. [2018-10-23 22:22:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7133 states. [2018-10-23 22:22:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 10914 transitions. [2018-10-23 22:22:44,285 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 10914 transitions. Word has length 102 [2018-10-23 22:22:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:22:44,286 INFO L481 AbstractCegarLoop]: Abstraction has 7133 states and 10914 transitions. [2018-10-23 22:22:44,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:22:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 10914 transitions. [2018-10-23 22:22:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-23 22:22:44,289 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:44,290 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:22:44,290 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:44,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:44,290 INFO L82 PathProgramCache]: Analyzing trace with hash -51827352, now seen corresponding path program 1 times [2018-10-23 22:22:44,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:44,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:44,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:44,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:44,292 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:44,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:22:44,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:22:44,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:22:44,479 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:22:44,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:22:44,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:22:44,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:22:44,482 INFO L87 Difference]: Start difference. First operand 7133 states and 10914 transitions. Second operand 3 states. [2018-10-23 22:22:51,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:22:51,206 INFO L93 Difference]: Finished difference Result 20919 states and 33369 transitions. [2018-10-23 22:22:51,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:22:51,206 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2018-10-23 22:22:51,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:22:51,286 INFO L225 Difference]: With dead ends: 20919 [2018-10-23 22:22:51,287 INFO L226 Difference]: Without dead ends: 13792 [2018-10-23 22:22:51,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:22:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13792 states. [2018-10-23 22:22:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13792 to 13791. [2018-10-23 22:22:51,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13791 states. [2018-10-23 22:22:51,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13791 states to 13791 states and 20341 transitions. [2018-10-23 22:22:51,728 INFO L78 Accepts]: Start accepts. Automaton has 13791 states and 20341 transitions. Word has length 126 [2018-10-23 22:22:51,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:22:51,730 INFO L481 AbstractCegarLoop]: Abstraction has 13791 states and 20341 transitions. [2018-10-23 22:22:51,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:22:51,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13791 states and 20341 transitions. [2018-10-23 22:22:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-10-23 22:22:51,737 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:22:51,737 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-23 22:22:51,738 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:22:51,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:22:51,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1302306563, now seen corresponding path program 1 times [2018-10-23 22:22:51,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:22:51,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:51,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:22:51,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:22:51,740 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:22:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:22:52,101 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-23 22:22:52,574 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 36 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 22:22:52,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:22:52,575 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:22:52,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-10-23 22:22:52,579 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2727], [2729], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3159], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-23 22:22:52,657 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:22:52,657 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:22:56,518 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:23:00,227 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:23:00,229 INFO L272 AbstractInterpreter]: Visited 83 different actions 83 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-23 22:23:00,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:23:00,277 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:23:05,820 INFO L232 lantSequenceWeakener]: Weakened 158 states. On average, predicates are now at 71.34% of their original sizes. [2018-10-23 22:23:05,820 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:23:07,608 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:23:07,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:23:07,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-10-23 22:23:07,610 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:23:07,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-23 22:23:07,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-23 22:23:07,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-23 22:23:07,611 INFO L87 Difference]: Start difference. First operand 13791 states and 20341 transitions. Second operand 10 states. Received shutdown request... [2018-10-23 22:25:21,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 22:25:21,758 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:25:21,765 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:25:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:25:21 BoogieIcfgContainer [2018-10-23 22:25:21,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:25:21,766 INFO L168 Benchmark]: Toolchain (without parser) took 218379.66 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -734.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,768 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 22:25:21,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2435.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 625.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,772 INFO L168 Benchmark]: Boogie Preprocessor took 467.31 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,773 INFO L168 Benchmark]: RCFGBuilder took 13020.41 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 223.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -38.7 MB). Peak memory consumption was 685.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,774 INFO L168 Benchmark]: TraceAbstraction took 201823.30 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.5 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-23 22:25:21,787 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2435.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 256.3 MB). Peak memory consumption was 256.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 625.11 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.9 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 467.31 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13020.41 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 223.9 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -38.7 MB). Peak memory consumption was 685.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201823.30 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.6 GB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 66.5 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: 66]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 66). Cancelled while BasicCegarLoop was constructing difference of abstraction (13791states) and FLOYD_HOARE automaton (currently 9 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (4086 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 201.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 183.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2357 SDtfs, 10980 SDslu, 1498 SDs, 0 SdLazy, 14930 SolverSat, 4819 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 135.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 210 GetRequests, 181 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13791occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9945548833189282 AbsIntWeakeningRatio, 0.15168539325842698 AbsIntAvgWeakeningVarsNumRemoved, 54.42696629213483 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 157 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 533 NumberOfCodeBlocks, 533 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 204508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 95/166 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown