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/Problem14_label33_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:35:45,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:35:45,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:35:45,349 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:35:45,349 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:35:45,350 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:35:45,352 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:35:45,353 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:35:45,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:35:45,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:35:45,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:35:45,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:35:45,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:35:45,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:35:45,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:35:45,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:35:45,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:35:45,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:35:45,370 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:35:45,374 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:35:45,376 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:35:45,377 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:35:45,379 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:35:45,388 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 01:35:45,404 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:35:45,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:35:45,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:35:45,405 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:35:45,406 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:35:45,406 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:35:45,406 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:35:45,406 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:35:45,406 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:35:45,407 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:35:45,407 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:35:45,407 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:35:45,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:35:45,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:35:45,408 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:35:45,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:35:45,408 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:35:45,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:35:45,409 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:35:45,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:35:45,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:35:45,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:35:45,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:35:45,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:35:45,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:35:45,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:35:45,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:35:45,411 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:35:45,412 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:35:45,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:35:45,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:35:45,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:35:45,485 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:35:45,485 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:35:45,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-10-24 01:35:45,559 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92b589ccf/16f2c2b825414eb898d7baf055eff845/FLAGfc9152653 [2018-10-24 01:35:46,196 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:35:46,197 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label33_true-unreach-call_false-termination.c [2018-10-24 01:35:46,225 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92b589ccf/16f2c2b825414eb898d7baf055eff845/FLAGfc9152653 [2018-10-24 01:35:46,238 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/92b589ccf/16f2c2b825414eb898d7baf055eff845 [2018-10-24 01:35:46,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:35:46,253 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:35:46,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:35:46,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:35:46,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:35:46,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:46,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab4c919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46, skipping insertion in model container [2018-10-24 01:35:46,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:46,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:35:46,344 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:35:46,797 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:35:46,801 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:35:46,959 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:35:46,979 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:35:46,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46 WrapperNode [2018-10-24 01:35:46,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:35:46,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:35:46,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:35:46,981 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:35:46,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:35:47,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:35:47,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:35:47,231 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:35:47,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... [2018-10-24 01:35:47,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:35:47,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:35:47,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:35:47,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:35:47,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:35:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:35:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:35:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:35:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:35:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:35:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:35:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:35:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:35:51,076 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:35:51,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:51 BoogieIcfgContainer [2018-10-24 01:35:51,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:35:51,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:35:51,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:35:51,084 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:35:51,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:35:46" (1/3) ... [2018-10-24 01:35:51,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70165b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:51, skipping insertion in model container [2018-10-24 01:35:51,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:35:46" (2/3) ... [2018-10-24 01:35:51,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70165b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:35:51, skipping insertion in model container [2018-10-24 01:35:51,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:35:51" (3/3) ... [2018-10-24 01:35:51,088 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label33_true-unreach-call_false-termination.c [2018-10-24 01:35:51,098 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:35:51,109 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:35:51,127 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:35:51,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:35:51,168 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:35:51,169 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:35:51,169 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:35:51,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:35:51,169 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:35:51,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:35:51,170 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:35:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 01:35:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-24 01:35:51,218 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:35:51,220 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:35:51,222 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:35:51,228 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:35:51,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1913036537, now seen corresponding path program 1 times [2018-10-24 01:35:51,230 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:35:51,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:51,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:35:51,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:51,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:35:51,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:35:51,737 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:35:51,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:35:51,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:35:51,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 01:35:51,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:35:51,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 01:35:51,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 01:35:51,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:35:51,867 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-24 01:35:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:35:53,588 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-24 01:35:53,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 01:35:53,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-10-24 01:35:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:35:53,618 INFO L225 Difference]: With dead ends: 691 [2018-10-24 01:35:53,618 INFO L226 Difference]: Without dead ends: 434 [2018-10-24 01:35:53,627 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 01:35:53,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-24 01:35:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-24 01:35:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-24 01:35:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-24 01:35:53,733 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 65 [2018-10-24 01:35:53,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:35:53,733 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-24 01:35:53,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 01:35:53,734 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-24 01:35:53,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 01:35:53,750 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:35:53,751 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:35:53,751 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:35:53,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:35:53,753 INFO L82 PathProgramCache]: Analyzing trace with hash 920993175, now seen corresponding path program 1 times [2018-10-24 01:35:53,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:35:53,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:53,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:35:53,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:53,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:35:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:35:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:35:54,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:35:54,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:35:54,148 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:35:54,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:35:54,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:35:54,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:35:54,151 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-24 01:35:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:35:56,238 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-24 01:35:56,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:35:56,240 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-24 01:35:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:35:56,249 INFO L225 Difference]: With dead ends: 1062 [2018-10-24 01:35:56,250 INFO L226 Difference]: Without dead ends: 634 [2018-10-24 01:35:56,253 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:35:56,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-24 01:35:56,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-24 01:35:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-24 01:35:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-24 01:35:56,298 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 140 [2018-10-24 01:35:56,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:35:56,298 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-24 01:35:56,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:35:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-24 01:35:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-10-24 01:35:56,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:35:56,303 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:35:56,304 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:35:56,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:35:56,304 INFO L82 PathProgramCache]: Analyzing trace with hash 409670480, now seen corresponding path program 1 times [2018-10-24 01:35:56,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:35:56,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:56,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:35:56,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:35:56,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:35:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:35:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:35:56,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:35:56,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:35:56,878 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:35:56,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:35:56,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:35:56,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:35:56,880 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 6 states. [2018-10-24 01:36:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:36:02,084 INFO L93 Difference]: Finished difference Result 1819 states and 2988 transitions. [2018-10-24 01:36:02,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 01:36:02,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-10-24 01:36:02,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:36:02,098 INFO L225 Difference]: With dead ends: 1819 [2018-10-24 01:36:02,098 INFO L226 Difference]: Without dead ends: 1200 [2018-10-24 01:36:02,102 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:36:02,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2018-10-24 01:36:02,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1140. [2018-10-24 01:36:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2018-10-24 01:36:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1733 transitions. [2018-10-24 01:36:02,152 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1733 transitions. Word has length 149 [2018-10-24 01:36:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:36:02,152 INFO L481 AbstractCegarLoop]: Abstraction has 1140 states and 1733 transitions. [2018-10-24 01:36:02,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:36:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1733 transitions. [2018-10-24 01:36:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-10-24 01:36:02,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:36:02,159 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:36:02,159 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:36:02,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:36:02,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1226965922, now seen corresponding path program 1 times [2018-10-24 01:36:02,160 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:36:02,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:36:02,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:36:02,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:36:02,162 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:36:02,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:36:02,796 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:36:02,797 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:36:02,797 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:36:02,798 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 235 with the following transitions: [2018-10-24 01:36:02,800 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 01:36:02,868 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:36:02,869 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:36:06,681 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:36:06,683 INFO L272 AbstractInterpreter]: Visited 93 different actions 179 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 01:36:06,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:36:06,721 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:36:10,184 INFO L232 lantSequenceWeakener]: Weakened 40 states. On average, predicates are now at 79.89% of their original sizes. [2018-10-24 01:36:10,184 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:36:45,141 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:36:45,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:36:45,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [12] total 27 [2018-10-24 01:36:45,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:36:45,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 01:36:45,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 01:36:45,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-10-24 01:36:45,145 INFO L87 Difference]: Start difference. First operand 1140 states and 1733 transitions. Second operand 17 states. [2018-10-24 01:37:51,570 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:39:37,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:39:37,785 INFO L93 Difference]: Finished difference Result 3350 states and 4982 transitions. [2018-10-24 01:39:37,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 01:39:37,785 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 234 [2018-10-24 01:39:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:39:37,800 INFO L225 Difference]: With dead ends: 3350 [2018-10-24 01:39:37,801 INFO L226 Difference]: Without dead ends: 2216 [2018-10-24 01:39:37,806 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 178 SyntacticMatches, 40 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 36.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2018-10-24 01:39:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2216 states. [2018-10-24 01:39:37,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2216 to 2182. [2018-10-24 01:39:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2018-10-24 01:39:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2810 transitions. [2018-10-24 01:39:37,981 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2810 transitions. Word has length 234 [2018-10-24 01:39:37,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:39:37,981 INFO L481 AbstractCegarLoop]: Abstraction has 2182 states and 2810 transitions. [2018-10-24 01:39:37,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-24 01:39:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2810 transitions. [2018-10-24 01:39:37,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-10-24 01:39:37,989 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:39:37,990 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:39:37,990 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:39:37,990 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:39:37,991 INFO L82 PathProgramCache]: Analyzing trace with hash 656086570, now seen corresponding path program 1 times [2018-10-24 01:39:37,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:39:37,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:39:37,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:39:37,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:39:37,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:39:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-24 01:39:38,308 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:39:38,314 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:39:38,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:39:38 BoogieIcfgContainer [2018-10-24 01:39:38,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:39:38,316 INFO L168 Benchmark]: Toolchain (without parser) took 232064.55 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 554.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,320 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-24 01:39:38,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 249.23 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,324 INFO L168 Benchmark]: Boogie Preprocessor took 115.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,324 INFO L168 Benchmark]: RCFGBuilder took 3731.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 138.0 MB). Peak memory consumption was 138.0 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,325 INFO L168 Benchmark]: TraceAbstraction took 227236.79 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 440.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:39:38,337 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 726.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 249.23 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 717.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -809.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3731.12 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 138.0 MB). Peak memory consumption was 138.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227236.79 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 440.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was analyzing trace of length 271 with TraceHistMax 3,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 269 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 227.1s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 181.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 517 SDtfs, 4374 SDslu, 478 SDs, 0 SdLazy, 6647 SolverSat, 1164 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 266 GetRequests, 184 SyntacticMatches, 45 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 36.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2182occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.9s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9949384213472666 AbsIntWeakeningRatio, 0.11158798283261803 AbsIntAvgWeakeningVarsNumRemoved, 297.6909871244635 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 103 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 588 NumberOfCodeBlocks, 588 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 584 ConstructedInterpolants, 0 QuantifiedInterpolants, 1167656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 314/316 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown