java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label30.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.24-13a467a-m
[2019-10-14 22:00:25,916 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-14 22:00:25,918 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 22:00:25,936 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 22:00:25,936 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 22:00:25,937 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 22:00:25,941 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 22:00:25,949 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 22:00:25,953 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 22:00:25,956 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 22:00:25,958 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 22:00:25,959 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 22:00:25,959 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 22:00:25,961 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 22:00:25,963 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 22:00:25,965 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 22:00:25,966 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 22:00:25,967 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 22:00:25,969 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 22:00:25,973 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 22:00:25,977 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 22:00:25,980 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 22:00:25,982 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 22:00:25,983 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 22:00:25,985 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-14 22:00:25,985 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-14 22:00:25,985 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-14 22:00:25,987 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-14 22:00:25,988 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-14 22:00:25,989 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-14 22:00:25,989 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-14 22:00:25,991 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-14 22:00:25,991 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-14 22:00:25,992 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-14 22:00:25,993 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-14 22:00:25,993 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-14 22:00:25,994 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-14 22:00:25,994 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-14 22:00:25,994 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-14 22:00:25,995 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-14 22:00:25,996 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 22:00:25,997 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-14 22:00:26,022 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 22:00:26,023 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 22:00:26,024 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 22:00:26,024 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 22:00:26,024 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 22:00:26,024 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 22:00:26,025 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 22:00:26,025 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 22:00:26,025 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 22:00:26,025 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 22:00:26,025 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 22:00:26,026 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 22:00:26,027 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 22:00:26,027 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 22:00:26,027 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 22:00:26,027 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 22:00:26,027 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 22:00:26,028 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 22:00:26,028 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 22:00:26,028 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 22:00:26,028 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 22:00:26,028 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 22:00:26,029 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 22:00:26,029 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 22:00:26,310 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 22:00:26,329 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 22:00:26,332 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 22:00:26,334 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 22:00:26,334 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 22:00:26,335 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label30.c
[2019-10-14 22:00:26,402 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f5e00d/49a68ec93ea94abbae21696c308d9791/FLAG51e98ed72
[2019-10-14 22:00:27,144 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 22:00:27,145 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label30.c
[2019-10-14 22:00:27,175 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f5e00d/49a68ec93ea94abbae21696c308d9791/FLAG51e98ed72
[2019-10-14 22:00:27,234 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f96f5e00d/49a68ec93ea94abbae21696c308d9791
[2019-10-14 22:00:27,245 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 22:00:27,248 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 22:00:27,249 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 22:00:27,249 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 22:00:27,253 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 22:00:27,254 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:27" (1/1) ...
[2019-10-14 22:00:27,257 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fe4094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:27, skipping insertion in model container
[2019-10-14 22:00:27,258 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:00:27" (1/1) ...
[2019-10-14 22:00:27,266 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 22:00:27,441 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 22:00:28,998 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 22:00:29,012 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 22:00:29,696 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 22:00:29,724 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 22:00:29,724 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29 WrapperNode
[2019-10-14 22:00:29,725 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 22:00:29,725 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 22:00:29,726 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 22:00:29,726 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 22:00:29,739 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,740 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,798 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,800 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,887 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,914 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,939 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
[2019-10-14 22:00:29,965 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 22:00:29,966 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 22:00:29,966 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 22:00:29,966 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 22:00:29,967 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 22:00:30,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 22:00:30,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 22:00:30,031 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output
[2019-10-14 22:00:30,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output2
[2019-10-14 22:00:30,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output3
[2019-10-14 22:00:30,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure calculate_output4
[2019-10-14 22:00:30,032 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 22:00:30,032 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output
[2019-10-14 22:00:30,034 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output2
[2019-10-14 22:00:30,034 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output3
[2019-10-14 22:00:30,035 INFO  L130     BoogieDeclarations]: Found specification of procedure calculate_output4
[2019-10-14 22:00:30,035 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 22:00:30,036 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 22:00:30,036 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2019-10-14 22:00:30,037 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 22:00:30,037 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 22:00:30,038 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 22:00:34,580 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 22:00:34,583 INFO  L284             CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 22:00:34,585 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:34 BoogieIcfgContainer
[2019-10-14 22:00:34,585 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 22:00:34,587 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 22:00:34,587 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 22:00:34,591 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 22:00:34,591 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:00:27" (1/3) ...
[2019-10-14 22:00:34,592 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a71c3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:34, skipping insertion in model container
[2019-10-14 22:00:34,592 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:00:29" (2/3) ...
[2019-10-14 22:00:34,593 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a71c3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:00:34, skipping insertion in model container
[2019-10-14 22:00:34,593 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:00:34" (3/3) ...
[2019-10-14 22:00:34,600 INFO  L109   eAbstractionObserver]: Analyzing ICFG Problem12_label30.c
[2019-10-14 22:00:34,610 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 22:00:34,620 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-14 22:00:34,632 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-14 22:00:34,676 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 22:00:34,676 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 22:00:34,676 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 22:00:34,676 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 22:00:34,676 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 22:00:34,677 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 22:00:34,677 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 22:00:34,677 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 22:00:34,719 INFO  L276                IsEmpty]: Start isEmpty. Operand 839 states.
[2019-10-14 22:00:34,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2019-10-14 22:00:34,726 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 22:00:34,727 INFO  L380         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]
[2019-10-14 22:00:34,729 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 22:00:34,734 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 22:00:34,734 INFO  L82        PathProgramCache]: Analyzing trace with hash -1416358702, now seen corresponding path program 1 times
[2019-10-14 22:00:34,742 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 22:00:34,743 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86455274]
[2019-10-14 22:00:34,743 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:00:34,743 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:00:34,743 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 22:00:34,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:00:35,056 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:00:35,074 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 22:00:35,075 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86455274]
[2019-10-14 22:00:35,075 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 22:00:35,076 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-10-14 22:00:35,076 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995271245]
[2019-10-14 22:00:35,081 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 22:00:35,081 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 22:00:35,098 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 22:00:35,099 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 22:00:35,102 INFO  L87              Difference]: Start difference. First operand 839 states. Second operand 5 states.
[2019-10-14 22:00:46,585 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 22:00:46,585 INFO  L93              Difference]: Finished difference Result 3269 states and 6302 transitions.
[2019-10-14 22:00:46,586 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-10-14 22:00:46,587 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 31
[2019-10-14 22:00:46,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 22:00:46,627 INFO  L225             Difference]: With dead ends: 3269
[2019-10-14 22:00:46,628 INFO  L226             Difference]: Without dead ends: 2346
[2019-10-14 22:00:46,642 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2019-10-14 22:00:46,665 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2346 states.
[2019-10-14 22:00:46,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2342.
[2019-10-14 22:00:46,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2342 states.
[2019-10-14 22:00:46,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2342 states to 2342 states and 3696 transitions.
[2019-10-14 22:00:46,832 INFO  L78                 Accepts]: Start accepts. Automaton has 2342 states and 3696 transitions. Word has length 31
[2019-10-14 22:00:46,832 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 22:00:46,833 INFO  L462      AbstractCegarLoop]: Abstraction has 2342 states and 3696 transitions.
[2019-10-14 22:00:46,833 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 22:00:46,833 INFO  L276                IsEmpty]: Start isEmpty. Operand 2342 states and 3696 transitions.
[2019-10-14 22:00:46,838 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2019-10-14 22:00:46,838 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 22:00:46,839 INFO  L380         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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 22:00:46,839 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 22:00:46,839 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 22:00:46,839 INFO  L82        PathProgramCache]: Analyzing trace with hash 1680241966, now seen corresponding path program 1 times
[2019-10-14 22:00:46,840 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 22:00:46,840 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803712828]
[2019-10-14 22:00:46,840 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:00:46,840 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:00:46,840 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 22:00:46,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:00:47,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:00:47,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:00:47,218 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 22:00:47,218 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803712828]
[2019-10-14 22:00:47,219 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 22:00:47,219 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-14 22:00:47,219 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080586824]
[2019-10-14 22:00:47,221 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-10-14 22:00:47,221 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 22:00:47,222 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-10-14 22:00:47,222 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2019-10-14 22:00:47,222 INFO  L87              Difference]: Start difference. First operand 2342 states and 3696 transitions. Second operand 9 states.
[2019-10-14 22:00:59,816 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 22:00:59,816 INFO  L93              Difference]: Finished difference Result 9506 states and 15440 transitions.
[2019-10-14 22:00:59,817 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2019-10-14 22:00:59,817 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states. Word has length 111
[2019-10-14 22:00:59,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 22:00:59,864 INFO  L225             Difference]: With dead ends: 9506
[2019-10-14 22:00:59,865 INFO  L226             Difference]: Without dead ends: 7170
[2019-10-14 22:00:59,876 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272
[2019-10-14 22:00:59,888 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7170 states.
[2019-10-14 22:01:00,097 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7170 to 7144.
[2019-10-14 22:01:00,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7144 states.
[2019-10-14 22:01:00,122 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7144 states to 7144 states and 10380 transitions.
[2019-10-14 22:01:00,123 INFO  L78                 Accepts]: Start accepts. Automaton has 7144 states and 10380 transitions. Word has length 111
[2019-10-14 22:01:00,124 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 22:01:00,125 INFO  L462      AbstractCegarLoop]: Abstraction has 7144 states and 10380 transitions.
[2019-10-14 22:01:00,125 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 9 states.
[2019-10-14 22:01:00,125 INFO  L276                IsEmpty]: Start isEmpty. Operand 7144 states and 10380 transitions.
[2019-10-14 22:01:00,135 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2019-10-14 22:01:00,136 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 22:01:00,137 INFO  L380         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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 22:01:00,137 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 22:01:00,137 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 22:01:00,137 INFO  L82        PathProgramCache]: Analyzing trace with hash 1285051767, now seen corresponding path program 1 times
[2019-10-14 22:01:00,138 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 22:01:00,138 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854548471]
[2019-10-14 22:01:00,138 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:01:00,139 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 22:01:00,139 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 22:01:00,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:01:00,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:01:00,322 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 22:01:00,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 22:01:00,587 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854548471]
[2019-10-14 22:01:00,588 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 22:01:00,592 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-14 22:01:00,593 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392674988]
[2019-10-14 22:01:00,595 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 9 states
[2019-10-14 22:01:00,595 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 22:01:00,603 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2019-10-14 22:01:00,603 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2019-10-14 22:01:00,603 INFO  L87              Difference]: Start difference. First operand 7144 states and 10380 transitions. Second operand 9 states.