/usr/bin/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/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-fb55353
[2019-11-06 21:21:42,173 INFO  L177        SettingsManager]: Resetting all preferences to default values...
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[2019-11-06 21:21:42,234 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-11-06 21:21:42,267 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
[2019-11-06 21:21:42,280 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-06 21:21:42,281 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-06 21:21:42,282 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-06 21:21:42,282 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-06 21:21:42,282 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-06 21:21:42,282 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-06 21:21:42,283 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-06 21:21:42,283 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-06 21:21:42,283 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-06 21:21:42,283 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-06 21:21:42,283 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-06 21:21:42,284 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-06 21:21:42,284 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-06 21:21:42,284 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-06 21:21:42,284 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-06 21:21:42,284 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-06 21:21:42,285 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-06 21:21:42,285 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-06 21:21:42,285 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-06 21:21:42,285 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-06 21:21:42,285 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-06 21:21:42,286 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-06 21:21:42,286 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-06 21:21:42,286 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-06 21:21:42,286 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-06 21:21:42,286 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-06 21:21:42,287 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-06 21:21:42,287 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-06 21:21:42,287 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-06 21:21:42,616 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-06 21:21:42,628 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-06 21:21:42,631 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-06 21:21:42,633 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-06 21:21:42,633 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-06 21:21:42,634 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c
[2019-11-06 21:21:42,705 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad45a1dd/c874ffa47cc64ef5bc504880a5fe11c9/FLAG6c1a078ca
[2019-11-06 21:21:43,245 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-06 21:21:43,246 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c
[2019-11-06 21:21:43,264 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad45a1dd/c874ffa47cc64ef5bc504880a5fe11c9/FLAG6c1a078ca
[2019-11-06 21:21:43,535 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad45a1dd/c874ffa47cc64ef5bc504880a5fe11c9
[2019-11-06 21:21:43,546 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-06 21:21:43,547 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-06 21:21:43,548 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-06 21:21:43,549 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-06 21:21:43,552 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-06 21:21:43,553 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:21:43" (1/1) ...
[2019-11-06 21:21:43,556 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de52ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:43, skipping insertion in model container
[2019-11-06 21:21:43,556 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:21:43" (1/1) ...
[2019-11-06 21:21:43,564 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-06 21:21:43,623 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-06 21:21:43,936 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 21:21:44,048 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-06 21:21:44,183 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-06 21:21:44,209 INFO  L192         MainTranslator]: Completed translation
[2019-11-06 21:21:44,210 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44 WrapperNode
[2019-11-06 21:21:44,210 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-06 21:21:44,211 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-06 21:21:44,211 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-06 21:21:44,211 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-06 21:21:44,228 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,228 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,248 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,248 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,293 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,301 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,306 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (1/1) ...
[2019-11-06 21:21:44,314 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-06 21:21:44,315 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-06 21:21:44,315 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-06 21:21:44,315 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-06 21:21:44,316 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (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
[2019-11-06 21:21:44,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-06 21:21:44,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-06 21:21:44,390 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-11-06 21:21:44,390 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-06 21:21:44,391 INFO  L130     BoogieDeclarations]: Found specification of procedure Id_MCDC_89
[2019-11-06 21:21:44,391 INFO  L130     BoogieDeclarations]: Found specification of procedure fopen
[2019-11-06 21:21:44,392 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-11-06 21:21:44,392 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-11-06 21:21:44,392 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-06 21:21:44,392 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-06 21:21:44,393 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-11-06 21:21:44,393 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-11-06 21:21:44,394 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-11-06 21:21:44,394 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-06 21:21:44,395 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-06 21:21:44,395 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-11-06 21:21:44,398 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-11-06 21:21:45,428 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-06 21:21:45,428 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-06 21:21:45,429 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:21:45 BoogieIcfgContainer
[2019-11-06 21:21:45,430 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-06 21:21:45,431 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-06 21:21:45,431 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-11-06 21:21:45,434 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-11-06 21:21:45,434 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:21:43" (1/3) ...
[2019-11-06 21:21:45,435 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e391d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:21:45, skipping insertion in model container
[2019-11-06 21:21:45,435 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:21:44" (2/3) ...
[2019-11-06 21:21:45,436 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e391d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:21:45, skipping insertion in model container
[2019-11-06 21:21:45,436 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:21:45" (3/3) ...
[2019-11-06 21:21:45,438 INFO  L109   eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c
[2019-11-06 21:21:45,448 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-06 21:21:45,456 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-11-06 21:21:45,467 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-11-06 21:21:45,492 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-11-06 21:21:45,492 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-11-06 21:21:45,492 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-06 21:21:45,493 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-06 21:21:45,493 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-06 21:21:45,493 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-11-06 21:21:45,493 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-06 21:21:45,493 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-06 21:21:45,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states.
[2019-11-06 21:21:45,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2019-11-06 21:21:45,519 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 21:21:45,520 INFO  L410         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]
[2019-11-06 21:21:45,522 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:45,528 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:45,528 INFO  L82        PathProgramCache]: Analyzing trace with hash 377540282, now seen corresponding path program 1 times
[2019-11-06 21:21:45,537 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:45,538 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766463966]
[2019-11-06 21:21:45,538 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:45,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:46,778 WARN  L191               SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2019-11-06 21:21:46,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:46,855 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:46,856 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766463966]
[2019-11-06 21:21:46,857 INFO  L218   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-06 21:21:46,858 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2019-11-06 21:21:46,859 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293776080]
[2019-11-06 21:21:46,864 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 20 states
[2019-11-06 21:21:46,864 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:46,877 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2019-11-06 21:21:46,878 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380
[2019-11-06 21:21:46,881 INFO  L87              Difference]: Start difference. First operand 55 states. Second operand 20 states.
[2019-11-06 21:21:47,289 WARN  L191               SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2019-11-06 21:21:48,421 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:21:48,421 INFO  L93              Difference]: Finished difference Result 92 states and 136 transitions.
[2019-11-06 21:21:48,422 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2019-11-06 21:21:48,423 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states. Word has length 48
[2019-11-06 21:21:48,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:21:48,434 INFO  L225             Difference]: With dead ends: 92
[2019-11-06 21:21:48,434 INFO  L226             Difference]: Without dead ends: 57
[2019-11-06 21:21:48,438 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600
[2019-11-06 21:21:48,457 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2019-11-06 21:21:48,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54.
[2019-11-06 21:21:48,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 54 states.
[2019-11-06 21:21:48,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions.
[2019-11-06 21:21:48,485 INFO  L78                 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48
[2019-11-06 21:21:48,486 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:21:48,486 INFO  L462      AbstractCegarLoop]: Abstraction has 54 states and 54 transitions.
[2019-11-06 21:21:48,486 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 20 states.
[2019-11-06 21:21:48,486 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions.
[2019-11-06 21:21:48,488 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2019-11-06 21:21:48,488 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 21:21:48,489 INFO  L410         BasicCegarLoop]: trace histogram [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]
[2019-11-06 21:21:48,489 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:48,489 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:48,490 INFO  L82        PathProgramCache]: Analyzing trace with hash -849330057, now seen corresponding path program 1 times
[2019-11-06 21:21:48,490 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:48,490 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575011723]
[2019-11-06 21:21:48,491 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:48,595 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:49,303 WARN  L191               SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2019-11-06 21:21:49,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:49,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:49,324 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575011723]
[2019-11-06 21:21:49,324 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925755539]
[2019-11-06 21:21:49,324 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:21:49,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:49,560 INFO  L256         TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 25 conjunts are in the unsatisfiable core
[2019-11-06 21:21:49,570 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-11-06 21:21:49,674 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:49,675 INFO  L218   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-11-06 21:21:49,675 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14] total 22
[2019-11-06 21:21:49,676 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311997031]
[2019-11-06 21:21:49,679 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 22 states
[2019-11-06 21:21:49,680 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:49,680 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2019-11-06 21:21:49,681 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462
[2019-11-06 21:21:49,681 INFO  L87              Difference]: Start difference. First operand 54 states and 54 transitions. Second operand 22 states.
[2019-11-06 21:21:49,999 WARN  L191               SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2019-11-06 21:21:50,992 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:21:50,992 INFO  L93              Difference]: Finished difference Result 65 states and 65 transitions.
[2019-11-06 21:21:50,993 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2019-11-06 21:21:50,993 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states. Word has length 53
[2019-11-06 21:21:50,994 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:21:50,995 INFO  L225             Difference]: With dead ends: 65
[2019-11-06 21:21:50,995 INFO  L226             Difference]: Without dead ends: 62
[2019-11-06 21:21:50,996 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812
[2019-11-06 21:21:50,997 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2019-11-06 21:21:51,003 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59.
[2019-11-06 21:21:51,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2019-11-06 21:21:51,005 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions.
[2019-11-06 21:21:51,005 INFO  L78                 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 53
[2019-11-06 21:21:51,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:21:51,006 INFO  L462      AbstractCegarLoop]: Abstraction has 59 states and 59 transitions.
[2019-11-06 21:21:51,006 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 22 states.
[2019-11-06 21:21:51,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions.
[2019-11-06 21:21:51,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2019-11-06 21:21:51,008 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 21:21:51,008 INFO  L410         BasicCegarLoop]: trace histogram [3, 3, 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]
[2019-11-06 21:21:51,212 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:21:51,215 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:51,216 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:51,216 INFO  L82        PathProgramCache]: Analyzing trace with hash -1610392358, now seen corresponding path program 2 times
[2019-11-06 21:21:51,217 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:51,217 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273291640]
[2019-11-06 21:21:51,217 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:51,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:51,871 WARN  L191               SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2019-11-06 21:21:51,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:51,890 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:51,890 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273291640]
[2019-11-06 21:21:51,891 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978970571]
[2019-11-06 21:21:51,891 INFO  L92    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:21:52,806 INFO  L249   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2019-11-06 21:21:52,807 INFO  L250   tOrderPrioritization]: Conjunction of SSA is unsat
[2019-11-06 21:21:52,812 INFO  L256         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 27 conjunts are in the unsatisfiable core
[2019-11-06 21:21:52,819 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-11-06 21:21:52,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:52,879 INFO  L218   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-11-06 21:21:52,879 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15] total 23
[2019-11-06 21:21:52,880 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703907095]
[2019-11-06 21:21:52,880 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 23 states
[2019-11-06 21:21:52,881 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:52,881 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2019-11-06 21:21:52,881 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506
[2019-11-06 21:21:52,882 INFO  L87              Difference]: Start difference. First operand 59 states and 59 transitions. Second operand 23 states.
[2019-11-06 21:21:53,172 WARN  L191               SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2019-11-06 21:21:54,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:21:54,358 INFO  L93              Difference]: Finished difference Result 70 states and 70 transitions.
[2019-11-06 21:21:54,359 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2019-11-06 21:21:54,359 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states. Word has length 58
[2019-11-06 21:21:54,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:21:54,362 INFO  L225             Difference]: With dead ends: 70
[2019-11-06 21:21:54,363 INFO  L226             Difference]: Without dead ends: 67
[2019-11-06 21:21:54,364 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930
[2019-11-06 21:21:54,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2019-11-06 21:21:54,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64.
[2019-11-06 21:21:54,371 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 64 states.
[2019-11-06 21:21:54,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions.
[2019-11-06 21:21:54,373 INFO  L78                 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 58
[2019-11-06 21:21:54,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:21:54,374 INFO  L462      AbstractCegarLoop]: Abstraction has 64 states and 64 transitions.
[2019-11-06 21:21:54,374 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 23 states.
[2019-11-06 21:21:54,374 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions.
[2019-11-06 21:21:54,376 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2019-11-06 21:21:54,376 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-06 21:21:54,376 INFO  L410         BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-06 21:21:54,582 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:21:54,582 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-06 21:21:54,583 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-06 21:21:54,583 INFO  L82        PathProgramCache]: Analyzing trace with hash 1809942103, now seen corresponding path program 3 times
[2019-11-06 21:21:54,584 INFO  L161   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2019-11-06 21:21:54,584 INFO  L337   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697554153]
[2019-11-06 21:21:54,585 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-06 21:21:54,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:55,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-06 21:21:55,265 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-06 21:21:55,265 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697554153]
[2019-11-06 21:21:55,265 INFO  L337   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128161458]
[2019-11-06 21:21:55,266 INFO  L92    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:21:56,068 INFO  L249   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2019-11-06 21:21:56,069 INFO  L250   tOrderPrioritization]: Conjunction of SSA is unsat
[2019-11-06 21:21:56,072 INFO  L256         TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 34 conjunts are in the unsatisfiable core
[2019-11-06 21:21:56,078 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2019-11-06 21:21:56,289 INFO  L319       QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-11-06 21:21:56,344 INFO  L341             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2019-11-06 21:21:56,345 INFO  L375             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39
[2019-11-06 21:21:56,346 INFO  L496         ElimStorePlain]: Start of recursive call 2:  End of recursive call:  and 1 xjuncts.
[2019-11-06 21:21:56,350 WARN  L225             Elim1Store]: Array PQE input equivalent to false
[2019-11-06 21:21:56,350 INFO  L496         ElimStorePlain]: Start of recursive call 3:  End of recursive call:  and 1 xjuncts.
[2019-11-06 21:21:56,397 INFO  L567         ElimStorePlain]: treesize reduction 5, result has 84.8 percent of original size
[2019-11-06 21:21:56,397 INFO  L496         ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars,  End of recursive call:  and 1 xjuncts.
[2019-11-06 21:21:56,398 INFO  L221         ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:82, output treesize:28
[2019-11-06 21:21:56,443 INFO  L319       QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-11-06 21:21:56,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2019-11-06 21:21:56,556 INFO  L218   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2019-11-06 21:21:56,557 INFO  L231   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 9] total 30
[2019-11-06 21:21:56,557 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996000132]
[2019-11-06 21:21:56,558 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 30 states
[2019-11-06 21:21:56,558 INFO  L141   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-11-06 21:21:56,558 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2019-11-06 21:21:56,559 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870
[2019-11-06 21:21:56,559 INFO  L87              Difference]: Start difference. First operand 64 states and 64 transitions. Second operand 30 states.
[2019-11-06 21:21:56,867 WARN  L191               SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2019-11-06 21:22:00,083 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-06 21:22:00,083 INFO  L93              Difference]: Finished difference Result 72 states and 73 transitions.
[2019-11-06 21:22:00,084 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2019-11-06 21:22:00,084 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states. Word has length 63
[2019-11-06 21:22:00,085 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-06 21:22:00,085 INFO  L225             Difference]: With dead ends: 72
[2019-11-06 21:22:00,085 INFO  L226             Difference]: Without dead ends: 0
[2019-11-06 21:22:00,088 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=331, Invalid=2749, Unknown=0, NotChecked=0, Total=3080
[2019-11-06 21:22:00,088 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-11-06 21:22:00,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-11-06 21:22:00,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-11-06 21:22:00,089 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-11-06 21:22:00,089 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63
[2019-11-06 21:22:00,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-06 21:22:00,089 INFO  L462      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-11-06 21:22:00,089 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 30 states.
[2019-11-06 21:22:00,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-11-06 21:22:00,090 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2019-11-06 21:22:00,296 WARN  L499      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-06 21:22:00,302 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-11-06 21:22:00,467 WARN  L191               SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 33
[2019-11-06 21:22:00,572 WARN  L191               SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2019-11-06 21:22:00,747 WARN  L191               SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48
[2019-11-06 21:22:00,750 INFO  L443   ceAbstractionStarter]: For program point  ULTIMATE.initFINAL(line -1)  no Hoare annotation was computed.
[2019-11-06 21:22:00,750 INFO  L439   ceAbstractionStarter]: At program point  ULTIMATE.initENTRY(line -1)  the Hoare annotation is:  (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |#t~string46.offset| |old(#t~string46.offset)|) (= |#t~string48.base| |old(#t~string48.base)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= |#t~string50.offset| |old(#t~string50.offset)|) (= |#t~string48.offset| |old(#t~string48.offset)|) (= |#t~string50.base| |old(#t~string50.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#t~string56.offset| |old(#t~string56.offset)|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |#t~string58.base| |old(#t~string58.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string56.base| |old(#t~string56.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#t~string54.offset| |old(#t~string54.offset)|) (= |old(#length)| |#length|) (= |#t~string62.base| |old(#t~string62.base)|) (= |#t~string46.base| |old(#t~string46.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= ~__tmp_1075_2~0.base |old(~__tmp_1075_2~0.base)|) (= |#t~string58.offset| |old(#t~string58.offset)|) (= |#t~string52.offset| |old(#t~string52.offset)|) (= |#valid| |old(#valid)|) (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= |#t~string54.base| |old(#t~string54.base)|) (= |#t~string60.base| |old(#t~string60.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#t~string52.base| |old(#t~string52.base)|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|))
[2019-11-06 21:22:00,751 INFO  L443   ceAbstractionStarter]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2019-11-06 21:22:00,751 INFO  L443   ceAbstractionStarter]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2019-11-06 21:22:00,751 INFO  L439   ceAbstractionStarter]: At program point  L-1(line -1)  the Hoare annotation is:  (and (<= ~Id_MCDC_93~0 9) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)))
[2019-11-06 21:22:00,751 INFO  L446   ceAbstractionStarter]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2019-11-06 21:22:00,751 INFO  L443   ceAbstractionStarter]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2019-11-06 21:22:00,751 INFO  L443   ceAbstractionStarter]: For program point  mainEXIT(lines 134 634)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L275(lines 275 568)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L242(lines 242 586)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L465(line 465)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L234(lines 234 592)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L284(lines 284 563)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L301(lines 301 551)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L268(lines 268 569)  no Hoare annotation was computed.
[2019-11-06 21:22:00,752 INFO  L443   ceAbstractionStarter]: For program point  L260(lines 260 575)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  L310(lines 310 546)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  mainFINAL(lines 134 634)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  L327(lines 327 534)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  L294(lines 294 552)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  L162(lines 162 633)  no Hoare annotation was computed.
[2019-11-06 21:22:00,753 INFO  L443   ceAbstractionStarter]: For program point  L286(lines 286 558)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L439   ceAbstractionStarter]: At program point  mainENTRY(lines 134 634)  the Hoare annotation is:  (or (and (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= |old(#length)| |#length|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= ~__tmp_1075_2~0.base |old(~__tmp_1075_2~0.base)|) (= |#valid| |old(#valid)|) (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|)) (not (<= |old(~Id_MCDC_93~0)| 9)) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))))
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L336(lines 336 529)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L353(lines 353 517)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L320(lines 320 535)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L312(lines 312 541)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L180(lines 180 631)  no Hoare annotation was computed.
[2019-11-06 21:22:00,754 INFO  L443   ceAbstractionStarter]: For program point  L362(lines 362 512)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 465)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L197(lines 197 619)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L379(lines 379 500)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L346(lines 346 518)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L338(lines 338 524)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L206(lines 206 614)  no Hoare annotation was computed.
[2019-11-06 21:22:00,755 INFO  L443   ceAbstractionStarter]: For program point  L421(lines 421 478)  no Hoare annotation was computed.
[2019-11-06 21:22:00,756 INFO  L443   ceAbstractionStarter]: For program point  L388(lines 388 495)  no Hoare annotation was computed.
[2019-11-06 21:22:00,756 INFO  L443   ceAbstractionStarter]: For program point  L223(lines 223 602)  no Hoare annotation was computed.
[2019-11-06 21:22:00,756 INFO  L443   ceAbstractionStarter]: For program point  L190(lines 190 620)  no Hoare annotation was computed.
[2019-11-06 21:22:00,756 INFO  L439   ceAbstractionStarter]: At program point  L446(lines 406 479)  the Hoare annotation is:  (let ((.cse0 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296))) (let ((.cse1 (< .cse0 42)) (.cse2 (= |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0)) (.cse4 (= 0 (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492))))) (or (not (<= |old(~Id_MCDC_93~0)| 9)) (let ((.cse5 (mod (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (let ((.cse3 (* 12 .cse5))) (and (not (= (* 12 .cse0) 492)) .cse1 .cse2 (not (= 492 .cse3)) .cse4 (= .cse3 ~__tmp_1075_2~0.offset) (< .cse5 42)))) (and .cse1 .cse2 .cse4 (<= ~Id_MCDC_93~0 9) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (< 0 (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1))))))
[2019-11-06 21:22:00,756 INFO  L443   ceAbstractionStarter]: For program point  L182(lines 182 626)  no Hoare annotation was computed.
[2019-11-06 21:22:00,756 INFO  L443   ceAbstractionStarter]: For program point  L438(lines 438 451)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L405(lines 405 483)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L372(lines 372 501)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L463(lines 463 471)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L364(lines 364 507)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L232(lines 232 597)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L249(lines 249 585)  no Hoare annotation was computed.
[2019-11-06 21:22:00,757 INFO  L443   ceAbstractionStarter]: For program point  L216(lines 216 603)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L208(lines 208 609)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L431(lines 431 452)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L398(lines 398 484)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L423(lines 423 473)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L390(lines 390 490)  no Hoare annotation was computed.
[2019-11-06 21:22:00,758 INFO  L443   ceAbstractionStarter]: For program point  L258(lines 258 580)  no Hoare annotation was computed.
[2019-11-06 21:22:00,767 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,768 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,775 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,775 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,778 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:22:00 BoogieIcfgContainer
[2019-11-06 21:22:00,779 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-11-06 21:22:00,781 INFO  L168              Benchmark]: Toolchain (without parser) took 17233.39 ms. Allocated memory was 144.7 MB in the beginning and 384.3 MB in the end (delta: 239.6 MB). Free memory was 101.9 MB in the beginning and 342.6 MB in the end (delta: -240.7 MB). Peak memory consumption was 225.3 MB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,782 INFO  L168              Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,783 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 662.14 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 174.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,784 INFO  L168              Benchmark]: Boogie Preprocessor took 103.84 ms. Allocated memory is still 202.9 MB. Free memory was 174.1 MB in the beginning and 168.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,784 INFO  L168              Benchmark]: RCFGBuilder took 1114.79 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 168.5 MB in the beginning and 186.2 MB in the end (delta: -17.7 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,785 INFO  L168              Benchmark]: TraceAbstraction took 15347.88 ms. Allocated memory was 234.4 MB in the beginning and 384.3 MB in the end (delta: 149.9 MB). Free memory was 186.2 MB in the beginning and 342.6 MB in the end (delta: -156.4 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB.
[2019-11-06 21:22:00,790 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.42 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 662.14 ms. Allocated memory was 144.7 MB in the beginning and 202.9 MB in the end (delta: 58.2 MB). Free memory was 101.6 MB in the beginning and 174.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.84 ms. Allocated memory is still 202.9 MB. Free memory was 174.1 MB in the beginning and 168.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1114.79 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 168.5 MB in the beginning and 186.2 MB in the end (delta: -17.7 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 15347.88 ms. Allocated memory was 234.4 MB in the beginning and 384.3 MB in the end (delta: 149.9 MB). Free memory was 186.2 MB in the beginning and 342.6 MB in the end (delta: -156.4 MB). Peak memory consumption was 220.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - GenericResult: Unfinished Backtranslation
    unknown boogie variable #memory_int
  - GenericResult: Unfinished Backtranslation
    unknown boogie variable #memory_int
  - GenericResult: Unfinished Backtranslation
    unknown boogie variable #memory_int
  - GenericResult: Unfinished Backtranslation
    unknown boogie variable #memory_int
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 465]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 406]: Loop Invariant
[2019-11-06 21:22:00,801 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,801 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,802 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
[2019-11-06 21:22:00,802 WARN  L1295  BoogieBacktranslator]: unknown boogie variable #memory_int
    Derived loop invariant: ((!(\old(Id_MCDC_93) <= 9) || ((((((!(12 * ((Id_MCDC_93 + 4294967295) % 4294967296) == 492) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && Id_MCDC_89__Id_MCDC_95 == 0) && !(492 == 12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296))) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == __tmp_1075_2) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42)) || (((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && Id_MCDC_89__Id_MCDC_95 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && Id_MCDC_93 <= 9) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 9) && 9 <= Id_MCDC_89__Id_MCDC_96)) || !(0 < \old(Id_MCDC_93) / 4294967296 + 1)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 15.2s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 76 SDtfs, 349 SDslu, 979 SDs, 0 SdLazy, 4090 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 171 SyntacticMatches, 7 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 255 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 342 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 396 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 389 ConstructedInterpolants, 0 QuantifiedInterpolants, 191485 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2536 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...