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/Problem16_label50_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:57:36,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:57:36,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:57:36,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:57:36,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:57:36,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:57:36,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:57:36,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:57:36,954 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:57:36,955 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:57:36,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:57:36,956 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:57:36,957 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:57:36,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:57:36,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:57:36,960 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:57:36,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:57:36,963 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:57:36,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:57:36,967 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:57:36,968 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:57:36,969 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:57:36,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 01:57:36,980 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 01:57:37,013 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:57:37,014 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:57:37,015 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:57:37,015 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:57:37,015 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:57:37,015 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:57:37,015 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:57:37,016 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:57:37,016 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:57:37,016 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:57:37,017 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:57:37,017 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:57:37,018 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:57:37,018 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:57:37,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:57:37,018 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:57:37,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:57:37,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:57:37,019 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:57:37,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:57:37,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:57:37,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:57:37,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:57:37,021 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:57:37,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:57:37,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:57:37,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:57:37,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:57:37,023 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:57:37,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:57:37,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:57:37,023 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:57:37,023 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:57:37,024 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:57:37,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:57:37,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:57:37,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:57:37,097 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:57:37,098 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:57:37,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50_true-unreach-call.c [2018-10-24 01:57:37,166 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/487148ad5/ebbf709c86f1438ca98a28886e2a6001/FLAG5a0506a71 [2018-10-24 01:57:37,909 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:57:37,913 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label50_true-unreach-call.c [2018-10-24 01:57:37,935 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/487148ad5/ebbf709c86f1438ca98a28886e2a6001/FLAG5a0506a71 [2018-10-24 01:57:37,955 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/487148ad5/ebbf709c86f1438ca98a28886e2a6001 [2018-10-24 01:57:37,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:57:37,972 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:57:37,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:57:37,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:57:37,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:57:37,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:57:37" (1/1) ... [2018-10-24 01:57:37,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fe9958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:37, skipping insertion in model container [2018-10-24 01:57:37,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:57:37" (1/1) ... [2018-10-24 01:57:38,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:57:38,116 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:57:38,983 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:57:38,989 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:57:39,237 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:57:39,283 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:57:39,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39 WrapperNode [2018-10-24 01:57:39,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:57:39,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:57:39,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:57:39,287 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:57:39,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:57:39,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:57:39,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:57:39,623 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:57:39,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (1/1) ... [2018-10-24 01:57:39,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:57:39,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:57:39,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:57:39,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:57:39,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (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 01:57:39,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:57:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:57:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 01:57:39,863 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 01:57:39,863 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:57:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:57:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:57:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:57:39,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:57:39,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:57:47,331 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:57:47,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:57:47 BoogieIcfgContainer [2018-10-24 01:57:47,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:57:47,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:57:47,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:57:47,338 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:57:47,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:57:37" (1/3) ... [2018-10-24 01:57:47,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49069bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:57:47, skipping insertion in model container [2018-10-24 01:57:47,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:57:39" (2/3) ... [2018-10-24 01:57:47,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49069bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:57:47, skipping insertion in model container [2018-10-24 01:57:47,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:57:47" (3/3) ... [2018-10-24 01:57:47,343 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label50_true-unreach-call.c [2018-10-24 01:57:47,352 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:57:47,363 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:57:47,381 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:57:47,426 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:57:47,426 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:57:47,427 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:57:47,427 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:57:47,427 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:57:47,427 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:57:47,427 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:57:47,427 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:57:47,462 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 01:57:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 01:57:47,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:57:47,474 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] [2018-10-24 01:57:47,476 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:57:47,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:57:47,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1374048196, now seen corresponding path program 1 times [2018-10-24 01:57:47,486 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:57:47,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:57:47,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:57:47,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:57:47,540 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:57:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:57:48,029 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 01:57:48,083 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 01:57:48,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:57:48,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:57:48,086 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:57:48,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:57:48,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:57:48,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:57:48,124 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-24 01:57:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:57:55,170 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-24 01:57:55,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:57:55,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-24 01:57:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:57:55,209 INFO L225 Difference]: With dead ends: 1513 [2018-10-24 01:57:55,209 INFO L226 Difference]: Without dead ends: 1097 [2018-10-24 01:57:55,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:57:55,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-24 01:57:55,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-10-24 01:57:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-10-24 01:57:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-10-24 01:57:55,348 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 52 [2018-10-24 01:57:55,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:57:55,349 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-10-24 01:57:55,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:57:55,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-10-24 01:57:55,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-24 01:57:55,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:57:55,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:57:55,359 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:57:55,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:57:55,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2033575421, now seen corresponding path program 1 times [2018-10-24 01:57:55,360 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:57:55,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:57:55,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:57:55,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:57:55,362 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:57:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:57:55,699 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:57:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:57:55,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:57:55,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:57:55,735 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:57:55,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:57:55,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:57:55,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:57:55,738 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-10-24 01:58:02,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:58:02,720 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-10-24 01:58:02,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:58:02,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-24 01:58:02,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:58:02,749 INFO L225 Difference]: With dead ends: 3259 [2018-10-24 01:58:02,749 INFO L226 Difference]: Without dead ends: 2168 [2018-10-24 01:58:02,755 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 01:58:02,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-10-24 01:58:02,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-10-24 01:58:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-10-24 01:58:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-10-24 01:58:02,841 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 123 [2018-10-24 01:58:02,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:58:02,842 INFO L481 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-10-24 01:58:02,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:58:02,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-10-24 01:58:02,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-10-24 01:58:02,849 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:58:02,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:02,849 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:58:02,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:02,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1172506123, now seen corresponding path program 1 times [2018-10-24 01:58:02,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:58:02,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:02,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:58:02,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:02,851 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:58:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:58:03,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:58:03,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:58:03,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:58:03,104 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:58:03,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:58:03,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:58:03,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:58:03,106 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-10-24 01:58:10,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:58:10,598 INFO L93 Difference]: Finished difference Result 7393 states and 13323 transitions. [2018-10-24 01:58:10,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:58:10,604 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-10-24 01:58:10,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:58:10,652 INFO L225 Difference]: With dead ends: 7393 [2018-10-24 01:58:10,653 INFO L226 Difference]: Without dead ends: 5257 [2018-10-24 01:58:10,677 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:58:10,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2018-10-24 01:58:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 5219. [2018-10-24 01:58:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5219 states. [2018-10-24 01:58:10,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 8511 transitions. [2018-10-24 01:58:10,838 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 8511 transitions. Word has length 151 [2018-10-24 01:58:10,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:58:10,838 INFO L481 AbstractCegarLoop]: Abstraction has 5219 states and 8511 transitions. [2018-10-24 01:58:10,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:58:10,839 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 8511 transitions. [2018-10-24 01:58:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-24 01:58:10,842 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:58:10,842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:10,842 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:58:10,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 405483975, now seen corresponding path program 1 times [2018-10-24 01:58:10,843 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:58:10,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:10,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:58:10,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:10,844 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:58:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:58:11,080 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:58:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:58:11,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:58:11,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:58:11,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:58:11,154 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:58:11,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:58:11,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:58:11,155 INFO L87 Difference]: Start difference. First operand 5219 states and 8511 transitions. Second operand 6 states. [2018-10-24 01:58:13,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:58:13,984 INFO L93 Difference]: Finished difference Result 12593 states and 21248 transitions. [2018-10-24 01:58:13,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:58:13,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-24 01:58:13,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:58:14,036 INFO L225 Difference]: With dead ends: 12593 [2018-10-24 01:58:14,036 INFO L226 Difference]: Without dead ends: 7380 [2018-10-24 01:58:14,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:58:14,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7380 states. [2018-10-24 01:58:14,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7380 to 7319. [2018-10-24 01:58:14,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7319 states. [2018-10-24 01:58:14,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7319 states to 7319 states and 10431 transitions. [2018-10-24 01:58:14,329 INFO L78 Accepts]: Start accepts. Automaton has 7319 states and 10431 transitions. Word has length 169 [2018-10-24 01:58:14,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:58:14,330 INFO L481 AbstractCegarLoop]: Abstraction has 7319 states and 10431 transitions. [2018-10-24 01:58:14,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:58:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 7319 states and 10431 transitions. [2018-10-24 01:58:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-24 01:58:14,334 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:58:14,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:58:14,338 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:58:14,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:14,339 INFO L82 PathProgramCache]: Analyzing trace with hash 573454830, now seen corresponding path program 1 times [2018-10-24 01:58:14,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:58:14,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:14,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:58:14,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:14,341 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:58:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:58:14,702 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 01:58:15,050 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:58:15,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:58:15,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:58:15,051 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:58:15,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:58:15,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:58:15,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:58:15,052 INFO L87 Difference]: Start difference. First operand 7319 states and 10431 transitions. Second operand 6 states. [2018-10-24 01:58:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:58:19,154 INFO L93 Difference]: Finished difference Result 18393 states and 26490 transitions. [2018-10-24 01:58:19,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:58:19,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2018-10-24 01:58:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:58:19,220 INFO L225 Difference]: With dead ends: 18393 [2018-10-24 01:58:19,220 INFO L226 Difference]: Without dead ends: 11080 [2018-10-24 01:58:19,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 01:58:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2018-10-24 01:58:19,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 11044. [2018-10-24 01:58:19,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11044 states. [2018-10-24 01:58:19,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11044 states to 11044 states and 14978 transitions. [2018-10-24 01:58:19,591 INFO L78 Accepts]: Start accepts. Automaton has 11044 states and 14978 transitions. Word has length 216 [2018-10-24 01:58:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:58:19,593 INFO L481 AbstractCegarLoop]: Abstraction has 11044 states and 14978 transitions. [2018-10-24 01:58:19,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:58:19,593 INFO L276 IsEmpty]: Start isEmpty. Operand 11044 states and 14978 transitions. [2018-10-24 01:58:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-24 01:58:19,599 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:58:19,599 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:58:19,600 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:58:19,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:19,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1283886317, now seen corresponding path program 1 times [2018-10-24 01:58:19,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:58:19,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:19,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:58:19,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:19,604 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:58:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:58:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-24 01:58:19,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:58:19,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:58:19,911 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:58:19,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:58:19,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:58:19,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:58:19,914 INFO L87 Difference]: Start difference. First operand 11044 states and 14978 transitions. Second operand 4 states. [2018-10-24 01:58:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:58:24,042 INFO L93 Difference]: Finished difference Result 27867 states and 38539 transitions. [2018-10-24 01:58:24,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:58:24,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 253 [2018-10-24 01:58:24,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:58:24,129 INFO L225 Difference]: With dead ends: 27867 [2018-10-24 01:58:24,130 INFO L226 Difference]: Without dead ends: 16829 [2018-10-24 01:58:24,180 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:58:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16829 states. [2018-10-24 01:58:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16829 to 16829. [2018-10-24 01:58:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16829 states. [2018-10-24 01:58:24,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16829 states to 16829 states and 21952 transitions. [2018-10-24 01:58:24,594 INFO L78 Accepts]: Start accepts. Automaton has 16829 states and 21952 transitions. Word has length 253 [2018-10-24 01:58:24,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:58:24,595 INFO L481 AbstractCegarLoop]: Abstraction has 16829 states and 21952 transitions. [2018-10-24 01:58:24,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:58:24,595 INFO L276 IsEmpty]: Start isEmpty. Operand 16829 states and 21952 transitions. [2018-10-24 01:58:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-10-24 01:58:24,637 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:58:24,638 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:58:24,638 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:58:24,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:24,639 INFO L82 PathProgramCache]: Analyzing trace with hash -207588909, now seen corresponding path program 1 times [2018-10-24 01:58:24,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:58:24,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:24,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:58:24,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:58:24,644 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:58:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:58:25,453 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 254 proven. 115 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-10-24 01:58:25,454 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:58:25,454 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:58:25,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 438 with the following transitions: [2018-10-24 01:58:25,460 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [495], [497], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 01:58:25,567 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:58:25,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:58:29,612 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:58:29,614 INFO L272 AbstractInterpreter]: Visited 145 different actions 145 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 01:58:29,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:58:29,660 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:58:33,420 INFO L232 lantSequenceWeakener]: Weakened 426 states. On average, predicates are now at 77.7% of their original sizes. [2018-10-24 01:58:33,420 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:58:34,071 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:58:34,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:58:34,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-24 01:58:34,073 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:58:34,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 01:58:34,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 01:58:34,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:58:34,075 INFO L87 Difference]: Start difference. First operand 16829 states and 21952 transitions. Second operand 8 states. [2018-10-24 01:58:38,106 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:59:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:59:09,920 INFO L93 Difference]: Finished difference Result 33992 states and 44289 transitions. [2018-10-24 01:59:09,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 01:59:09,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 437 [2018-10-24 01:59:09,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:59:09,987 INFO L225 Difference]: With dead ends: 33992 [2018-10-24 01:59:09,987 INFO L226 Difference]: Without dead ends: 17169 [2018-10-24 01:59:10,052 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 438 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:59:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17169 states. [2018-10-24 01:59:10,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17169 to 17167. [2018-10-24 01:59:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17167 states. [2018-10-24 01:59:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17167 states to 17167 states and 22299 transitions. [2018-10-24 01:59:10,399 INFO L78 Accepts]: Start accepts. Automaton has 17167 states and 22299 transitions. Word has length 437 [2018-10-24 01:59:10,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:59:10,400 INFO L481 AbstractCegarLoop]: Abstraction has 17167 states and 22299 transitions. [2018-10-24 01:59:10,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 01:59:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 17167 states and 22299 transitions. [2018-10-24 01:59:10,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2018-10-24 01:59:10,450 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:59:10,451 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 01:59:10,451 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:59:10,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:59:10,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1522548143, now seen corresponding path program 1 times [2018-10-24 01:59:10,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:59:10,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:59:10,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:59:10,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:59:10,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:59:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:59:10,829 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 01:59:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 257 proven. 311 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2018-10-24 01:59:11,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:59:11,566 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:59:11,567 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 530 with the following transitions: [2018-10-24 01:59:11,567 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [495], [497], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [948], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 01:59:11,577 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:59:11,578 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:59:13,222 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:59:30,155 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:59:30,155 INFO L272 AbstractInterpreter]: Visited 149 different actions 577 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 01:59:30,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:59:30,162 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:59:37,017 INFO L232 lantSequenceWeakener]: Weakened 318 states. On average, predicates are now at 77.62% of their original sizes. [2018-10-24 01:59:37,018 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 02:01:20,852 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:01:20,857 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:01:20,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:01:20 BoogieIcfgContainer [2018-10-24 02:01:20,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:01:20,858 INFO L168 Benchmark]: Toolchain (without parser) took 222888.44 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -850.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,860 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 02:01:20,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1311.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 335.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,861 INFO L168 Benchmark]: Boogie Preprocessor took 163.08 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,862 INFO L168 Benchmark]: RCFGBuilder took 7546.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 245.9 MB). Peak memory consumption was 245.9 MB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,863 INFO L168 Benchmark]: TraceAbstraction took 213523.44 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -359.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 02:01:20,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1311.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 335.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 736.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -838.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.08 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7546.31 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 245.9 MB). Peak memory consumption was 245.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213523.44 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.9 GB in the beginning and 2.3 GB in the end (delta: -359.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was analyzing trace of length 530 with TraceHistMax 5,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 213.4s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 69.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1210 SDtfs, 9915 SDslu, 728 SDs, 0 SdLazy, 12602 SolverSat, 4287 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 39.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 489 GetRequests, 445 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17167occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9970232725960669 AbsIntWeakeningRatio, 0.07261410788381743 AbsIntAvgWeakeningVarsNumRemoved, 423.5342323651452 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 163 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1401 NumberOfCodeBlocks, 1401 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1394 ConstructedInterpolants, 0 QuantifiedInterpolants, 1177049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 723/838 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown