java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl


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This is Ultimate 0.1.23-c372c2b
[2018-10-02 12:13:56,811 INFO  L170        SettingsManager]: Resetting all preferences to default values...
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[2018-10-02 12:13:56,882 INFO  L98         SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf
[2018-10-02 12:13:56,912 INFO  L110        SettingsManager]: Loading preferences was successful
[2018-10-02 12:13:56,912 INFO  L112        SettingsManager]: Preferences different from defaults after loading the file:
[2018-10-02 12:13:56,914 INFO  L131        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-10-02 12:13:56,914 INFO  L133        SettingsManager]:  * to procedures, called more than once=true
[2018-10-02 12:13:56,916 INFO  L131        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-10-02 12:13:56,917 INFO  L133        SettingsManager]:  * Create parallel compositions if possible=false
[2018-10-02 12:13:56,917 INFO  L133        SettingsManager]:  * Use SBE=true
[2018-10-02 12:13:56,917 INFO  L131        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-10-02 12:13:56,918 INFO  L133        SettingsManager]:  * sizeof long=4
[2018-10-02 12:13:56,918 INFO  L133        SettingsManager]:  * Overapproximate operations on floating types=true
[2018-10-02 12:13:56,918 INFO  L133        SettingsManager]:  * sizeof POINTER=4
[2018-10-02 12:13:56,918 INFO  L133        SettingsManager]:  * Check division by zero=IGNORE
[2018-10-02 12:13:56,918 INFO  L133        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2018-10-02 12:13:56,919 INFO  L133        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-10-02 12:13:56,919 INFO  L133        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2018-10-02 12:13:56,919 INFO  L133        SettingsManager]:  * sizeof long double=12
[2018-10-02 12:13:56,919 INFO  L133        SettingsManager]:  * Check if freed pointer was valid=false
[2018-10-02 12:13:56,919 INFO  L133        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2018-10-02 12:13:56,919 INFO  L131        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-10-02 12:13:56,920 INFO  L133        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2018-10-02 12:13:56,920 INFO  L133        SettingsManager]:  * To the following directory=./dump/
[2018-10-02 12:13:56,920 INFO  L133        SettingsManager]:  * SMT solver=External_DefaultMode
[2018-10-02 12:13:56,920 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-10-02 12:13:56,920 INFO  L131        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-10-02 12:13:56,920 INFO  L133        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2018-10-02 12:13:56,921 INFO  L133        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-10-02 12:13:56,921 INFO  L133        SettingsManager]:  * Trace refinement strategy=CAMEL
[2018-10-02 12:13:56,921 INFO  L133        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2018-10-02 12:13:56,921 INFO  L133        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-10-02 12:13:56,923 INFO  L133        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-10-02 12:13:56,923 INFO  L133        SettingsManager]:  * Use predicate trie based predicate unification=true
[2018-10-02 12:13:56,986 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2018-10-02 12:13:57,002 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-10-02 12:13:57,009 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-10-02 12:13:57,010 INFO  L271        PluginConnector]: Initializing Boogie PL CUP Parser...
[2018-10-02 12:13:57,011 INFO  L276        PluginConnector]: Boogie PL CUP Parser initialized
[2018-10-02 12:13:57,012 INFO  L418   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl
[2018-10-02 12:13:57,012 INFO  L111           BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested.i_4.bpl'
[2018-10-02 12:13:57,083 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-10-02 12:13:57,086 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2018-10-02 12:13:57,087 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-10-02 12:13:57,087 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-10-02 12:13:57,087 INFO  L276        PluginConnector]: Boogie Procedure Inliner initialized
[2018-10-02 12:13:57,109 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,123 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,130 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-10-02 12:13:57,131 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-10-02 12:13:57,131 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2018-10-02 12:13:57,132 INFO  L276        PluginConnector]: Boogie Preprocessor initialized
[2018-10-02 12:13:57,143 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,143 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,144 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,144 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,148 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,150 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,151 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/1) ...
[2018-10-02 12:13:57,153 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-10-02 12:13:57,154 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-10-02 12:13:57,154 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2018-10-02 12:13:57,154 INFO  L276        PluginConnector]: RCFGBuilder initialized
[2018-10-02 12:13:57,156 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (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
[2018-10-02 12:13:57,227 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-10-02 12:13:57,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-10-02 12:13:57,468 INFO  L340             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-10-02 12:13:57,468 INFO  L202        PluginConnector]: Adding new model nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:13:57 BoogieIcfgContainer
[2018-10-02 12:13:57,469 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-10-02 12:13:57,470 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-10-02 12:13:57,470 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2018-10-02 12:13:57,473 INFO  L276        PluginConnector]: TraceAbstraction initialized
[2018-10-02 12:13:57,473 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:13:57" (1/2) ...
[2018-10-02 12:13:57,474 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703462f3 and model type nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 12:13:57, skipping insertion in model container
[2018-10-02 12:13:57,474 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:13:57" (2/2) ...
[2018-10-02 12:13:57,476 INFO  L112   eAbstractionObserver]: Analyzing ICFG nested.i_4.bpl
[2018-10-02 12:13:57,486 INFO  L136   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-10-02 12:13:57,494 INFO  L148   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-10-02 12:13:57,546 INFO  L133   ementStrategyFactory]: Using default assertion order modulation
[2018-10-02 12:13:57,546 INFO  L381      AbstractCegarLoop]: Interprodecural is true
[2018-10-02 12:13:57,547 INFO  L382      AbstractCegarLoop]: Hoare is true
[2018-10-02 12:13:57,547 INFO  L383      AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-10-02 12:13:57,547 INFO  L384      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-10-02 12:13:57,547 INFO  L385      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-10-02 12:13:57,550 INFO  L386      AbstractCegarLoop]: Difference is false
[2018-10-02 12:13:57,550 INFO  L387      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-10-02 12:13:57,550 INFO  L392      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-10-02 12:13:57,567 INFO  L276                IsEmpty]: Start isEmpty. Operand 7 states.
[2018-10-02 12:13:57,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2018-10-02 12:13:57,575 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:13:57,577 INFO  L375         BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2018-10-02 12:13:57,583 INFO  L423      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:13:57,591 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:13:57,592 INFO  L82        PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times
[2018-10-02 12:13:57,594 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:13:57,595 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:13:57,639 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:57,639 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:13:57,639 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:57,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:13:57,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-02 12:13:57,741 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-10-02 12:13:57,741 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2018-10-02 12:13:57,746 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2018-10-02 12:13:57,760 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2018-10-02 12:13:57,761 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:13:57,763 INFO  L87              Difference]: Start difference. First operand 7 states. Second operand 3 states.
[2018-10-02 12:13:57,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:13:57,971 INFO  L93              Difference]: Finished difference Result 17 states and 23 transitions.
[2018-10-02 12:13:57,975 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2018-10-02 12:13:57,976 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 4
[2018-10-02 12:13:57,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:13:57,988 INFO  L225             Difference]: With dead ends: 17
[2018-10-02 12:13:57,989 INFO  L226             Difference]: Without dead ends: 11
[2018-10-02 12:13:57,992 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime
[2018-10-02 12:13:58,006 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2018-10-02 12:13:58,018 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9.
[2018-10-02 12:13:58,019 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2018-10-02 12:13:58,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions.
[2018-10-02 12:13:58,020 INFO  L78                 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4
[2018-10-02 12:13:58,021 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:13:58,021 INFO  L480      AbstractCegarLoop]: Abstraction has 9 states and 10 transitions.
[2018-10-02 12:13:58,021 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2018-10-02 12:13:58,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions.
[2018-10-02 12:13:58,021 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2018-10-02 12:13:58,022 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:13:58,022 INFO  L375         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1]
[2018-10-02 12:13:58,022 INFO  L423      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:13:58,022 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:13:58,023 INFO  L82        PathProgramCache]: Analyzing trace with hash 209100445, now seen corresponding path program 1 times
[2018-10-02 12:13:58,023 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:13:58,023 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:13:58,024 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,024 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:13:58,024 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:13:58,091 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-02 12:13:58,091 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-10-02 12:13:58,091 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-10-02 12:13:58,093 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-10-02 12:13:58,093 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-10-02 12:13:58,093 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:13:58,094 INFO  L87              Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states.
[2018-10-02 12:13:58,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:13:58,190 INFO  L93              Difference]: Finished difference Result 17 states and 20 transitions.
[2018-10-02 12:13:58,190 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2018-10-02 12:13:58,191 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 8
[2018-10-02 12:13:58,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:13:58,191 INFO  L225             Difference]: With dead ends: 17
[2018-10-02 12:13:58,191 INFO  L226             Difference]: Without dead ends: 11
[2018-10-02 12:13:58,195 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime
[2018-10-02 12:13:58,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2018-10-02 12:13:58,200 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2018-10-02 12:13:58,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 11 states.
[2018-10-02 12:13:58,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions.
[2018-10-02 12:13:58,201 INFO  L78                 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8
[2018-10-02 12:13:58,202 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:13:58,202 INFO  L480      AbstractCegarLoop]: Abstraction has 11 states and 12 transitions.
[2018-10-02 12:13:58,202 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-10-02 12:13:58,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions.
[2018-10-02 12:13:58,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2018-10-02 12:13:58,203 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:13:58,203 INFO  L375         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1]
[2018-10-02 12:13:58,203 INFO  L423      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:13:58,203 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:13:58,204 INFO  L82        PathProgramCache]: Analyzing trace with hash -850198025, now seen corresponding path program 1 times
[2018-10-02 12:13:58,204 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:13:58,205 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:13:58,206 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,206 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:13:58,206 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:13:58,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-02 12:13:58,297 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:13:58,297 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:13:58,306 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:13:58,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:13:58,343 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:13:58,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-02 12:13:58,661 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:13:58,661 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2018-10-02 12:13:58,662 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 7 states
[2018-10-02 12:13:58,662 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2018-10-02 12:13:58,662 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:13:58,662 INFO  L87              Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 7 states.
[2018-10-02 12:13:58,900 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:13:58,901 INFO  L93              Difference]: Finished difference Result 21 states and 24 transitions.
[2018-10-02 12:13:58,901 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2018-10-02 12:13:58,901 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 10
[2018-10-02 12:13:58,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:13:58,902 INFO  L225             Difference]: With dead ends: 21
[2018-10-02 12:13:58,902 INFO  L226             Difference]: Without dead ends: 13
[2018-10-02 12:13:58,903 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.1s impTime
[2018-10-02 12:13:58,903 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2018-10-02 12:13:58,907 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2018-10-02 12:13:58,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2018-10-02 12:13:58,908 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2018-10-02 12:13:58,908 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10
[2018-10-02 12:13:58,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:13:58,908 INFO  L480      AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2018-10-02 12:13:58,909 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2018-10-02 12:13:58,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2018-10-02 12:13:58,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2018-10-02 12:13:58,910 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:13:58,910 INFO  L375         BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1]
[2018-10-02 12:13:58,910 INFO  L423      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:13:58,911 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:13:58,911 INFO  L82        PathProgramCache]: Analyzing trace with hash -928778543, now seen corresponding path program 2 times
[2018-10-02 12:13:58,911 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:13:58,911 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:13:58,912 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,912 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:13:58,913 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:13:58,923 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:13:59,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-10-02 12:13:59,147 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:13:59,147 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:13:59,162 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1
[2018-10-02 12:13:59,194 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2018-10-02 12:13:59,194 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:13:59,196 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:13:59,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2018-10-02 12:13:59,378 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:13:59,378 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 7
[2018-10-02 12:13:59,378 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 8 states
[2018-10-02 12:13:59,380 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2018-10-02 12:13:59,380 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:13:59,380 INFO  L87              Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states.
[2018-10-02 12:14:00,362 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:00,363 INFO  L93              Difference]: Finished difference Result 43 states and 51 transitions.
[2018-10-02 12:14:00,365 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2018-10-02 12:14:00,365 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 12
[2018-10-02 12:14:00,365 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:00,366 INFO  L225             Difference]: With dead ends: 43
[2018-10-02 12:14:00,366 INFO  L226             Difference]: Without dead ends: 33
[2018-10-02 12:14:00,367 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time 0.4s impTime
[2018-10-02 12:14:00,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2018-10-02 12:14:00,374 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25.
[2018-10-02 12:14:00,375 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2018-10-02 12:14:00,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions.
[2018-10-02 12:14:00,376 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 12
[2018-10-02 12:14:00,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:00,377 INFO  L480      AbstractCegarLoop]: Abstraction has 25 states and 27 transitions.
[2018-10-02 12:14:00,377 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2018-10-02 12:14:00,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions.
[2018-10-02 12:14:00,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2018-10-02 12:14:00,378 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:00,378 INFO  L375         BasicCegarLoop]: trace histogram [8, 6, 3, 2, 2, 1, 1, 1]
[2018-10-02 12:14:00,378 INFO  L423      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:00,379 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:00,379 INFO  L82        PathProgramCache]: Analyzing trace with hash 1778757007, now seen corresponding path program 3 times
[2018-10-02 12:14:00,379 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:00,379 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:00,380 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:00,380 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:00,381 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:00,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:00,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2018-10-02 12:14:00,484 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:00,484 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:00,493 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2
[2018-10-02 12:14:00,507 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2018-10-02 12:14:00,507 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:00,512 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:00,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2018-10-02 12:14:00,641 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:00,641 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9
[2018-10-02 12:14:00,642 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 10 states
[2018-10-02 12:14:00,642 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2018-10-02 12:14:00,642 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:00,643 INFO  L87              Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 10 states.
[2018-10-02 12:14:01,460 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:01,460 INFO  L93              Difference]: Finished difference Result 65 states and 75 transitions.
[2018-10-02 12:14:01,461 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. 
[2018-10-02 12:14:01,461 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states. Word has length 24
[2018-10-02 12:14:01,462 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:01,465 INFO  L225             Difference]: With dead ends: 65
[2018-10-02 12:14:01,465 INFO  L226             Difference]: Without dead ends: 51
[2018-10-02 12:14:01,467 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time 0.3s impTime
[2018-10-02 12:14:01,467 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2018-10-02 12:14:01,477 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41.
[2018-10-02 12:14:01,477 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2018-10-02 12:14:01,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions.
[2018-10-02 12:14:01,479 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 24
[2018-10-02 12:14:01,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:01,479 INFO  L480      AbstractCegarLoop]: Abstraction has 41 states and 44 transitions.
[2018-10-02 12:14:01,479 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 10 states.
[2018-10-02 12:14:01,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions.
[2018-10-02 12:14:01,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2018-10-02 12:14:01,481 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:01,481 INFO  L375         BasicCegarLoop]: trace histogram [15, 12, 4, 3, 3, 1, 1, 1]
[2018-10-02 12:14:01,481 INFO  L423      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:01,482 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:01,482 INFO  L82        PathProgramCache]: Analyzing trace with hash 209827969, now seen corresponding path program 4 times
[2018-10-02 12:14:01,482 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:01,482 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:01,483 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:01,483 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:01,483 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:01,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:01,600 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2018-10-02 12:14:01,600 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:01,600 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:01,613 INFO  L103   rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST
[2018-10-02 12:14:01,647 INFO  L242   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2018-10-02 12:14:01,648 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:01,650 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:01,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 222 backedges. 106 proven. 20 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2018-10-02 12:14:01,769 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:01,769 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2018-10-02 12:14:01,770 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 13 states
[2018-10-02 12:14:01,770 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2018-10-02 12:14:01,770 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:01,770 INFO  L87              Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 13 states.
[2018-10-02 12:14:01,935 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:01,935 INFO  L93              Difference]: Finished difference Result 75 states and 83 transitions.
[2018-10-02 12:14:01,939 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2018-10-02 12:14:01,939 INFO  L78                 Accepts]: Start accepts. Automaton has 13 states. Word has length 40
[2018-10-02 12:14:01,939 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:01,940 INFO  L225             Difference]: With dead ends: 75
[2018-10-02 12:14:01,940 INFO  L226             Difference]: Without dead ends: 47
[2018-10-02 12:14:01,941 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time 0.0s impTime
[2018-10-02 12:14:01,941 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2018-10-02 12:14:01,957 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2018-10-02 12:14:01,957 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2018-10-02 12:14:01,959 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions.
[2018-10-02 12:14:01,959 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 40
[2018-10-02 12:14:01,960 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:01,960 INFO  L480      AbstractCegarLoop]: Abstraction has 47 states and 50 transitions.
[2018-10-02 12:14:01,960 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 13 states.
[2018-10-02 12:14:01,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions.
[2018-10-02 12:14:01,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2018-10-02 12:14:01,964 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:01,964 INFO  L375         BasicCegarLoop]: trace histogram [18, 15, 4, 3, 3, 1, 1, 1]
[2018-10-02 12:14:01,965 INFO  L423      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:01,965 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:01,965 INFO  L82        PathProgramCache]: Analyzing trace with hash -254509681, now seen corresponding path program 5 times
[2018-10-02 12:14:01,965 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:01,966 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:01,966 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:01,967 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:01,967 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:02,008 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:02,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 318 backedges. 150 proven. 30 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked.
[2018-10-02 12:14:02,150 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:02,150 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:02,168 INFO  L103   rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1
[2018-10-02 12:14:02,253 INFO  L242   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s)
[2018-10-02 12:14:02,253 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:02,256 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:02,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 318 backedges. 150 proven. 30 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked.
[2018-10-02 12:14:02,568 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:02,568 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2018-10-02 12:14:02,568 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 15 states
[2018-10-02 12:14:02,569 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2018-10-02 12:14:02,569 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:02,569 INFO  L87              Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 15 states.
[2018-10-02 12:14:02,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:02,689 INFO  L93              Difference]: Finished difference Result 85 states and 93 transitions.
[2018-10-02 12:14:02,692 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2018-10-02 12:14:02,693 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states. Word has length 46
[2018-10-02 12:14:02,693 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:02,694 INFO  L225             Difference]: With dead ends: 85
[2018-10-02 12:14:02,694 INFO  L226             Difference]: Without dead ends: 53
[2018-10-02 12:14:02,694 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.1s impTime
[2018-10-02 12:14:02,695 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2018-10-02 12:14:02,706 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53.
[2018-10-02 12:14:02,706 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 53 states.
[2018-10-02 12:14:02,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions.
[2018-10-02 12:14:02,708 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 46
[2018-10-02 12:14:02,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:02,708 INFO  L480      AbstractCegarLoop]: Abstraction has 53 states and 56 transitions.
[2018-10-02 12:14:02,708 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 15 states.
[2018-10-02 12:14:02,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions.
[2018-10-02 12:14:02,710 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2018-10-02 12:14:02,710 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:02,710 INFO  L375         BasicCegarLoop]: trace histogram [21, 18, 4, 3, 3, 1, 1, 1]
[2018-10-02 12:14:02,710 INFO  L423      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:02,710 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:02,711 INFO  L82        PathProgramCache]: Analyzing trace with hash -996261859, now seen corresponding path program 6 times
[2018-10-02 12:14:02,711 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:02,711 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:02,712 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:02,712 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:02,712 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:02,727 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:02,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 432 backedges. 202 proven. 42 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked.
[2018-10-02 12:14:02,895 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:02,895 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:02,903 INFO  L103   rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE
[2018-10-02 12:14:02,951 INFO  L242   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s)
[2018-10-02 12:14:02,952 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:02,954 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:03,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked.
[2018-10-02 12:14:03,328 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:03,328 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13
[2018-10-02 12:14:03,329 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2018-10-02 12:14:03,329 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2018-10-02 12:14:03,330 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:03,330 INFO  L87              Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 14 states.
[2018-10-02 12:14:04,868 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:04,869 INFO  L93              Difference]: Finished difference Result 129 states and 142 transitions.
[2018-10-02 12:14:04,869 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. 
[2018-10-02 12:14:04,869 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 52
[2018-10-02 12:14:04,870 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:04,870 INFO  L225             Difference]: With dead ends: 129
[2018-10-02 12:14:04,871 INFO  L226             Difference]: Without dead ends: 93
[2018-10-02 12:14:04,871 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time 0.5s impTime
[2018-10-02 12:14:04,871 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2018-10-02 12:14:04,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77.
[2018-10-02 12:14:04,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 77 states.
[2018-10-02 12:14:04,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 81 transitions.
[2018-10-02 12:14:04,889 INFO  L78                 Accepts]: Start accepts. Automaton has 77 states and 81 transitions. Word has length 52
[2018-10-02 12:14:04,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:04,889 INFO  L480      AbstractCegarLoop]: Abstraction has 77 states and 81 transitions.
[2018-10-02 12:14:04,889 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2018-10-02 12:14:04,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 77 states and 81 transitions.
[2018-10-02 12:14:04,891 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2018-10-02 12:14:04,891 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:04,892 INFO  L375         BasicCegarLoop]: trace histogram [32, 28, 5, 4, 4, 1, 1, 1]
[2018-10-02 12:14:04,892 INFO  L423      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:04,892 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:04,892 INFO  L82        PathProgramCache]: Analyzing trace with hash -252111625, now seen corresponding path program 7 times
[2018-10-02 12:14:04,892 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:04,892 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:04,893 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:04,894 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:04,894 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:04,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:05,587 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 392 proven. 56 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked.
[2018-10-02 12:14:05,588 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:05,588 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:05,596 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:14:05,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:05,652 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:06,232 INFO  L134       CoverageAnalysis]: Checked inductivity of 1012 backedges. 392 proven. 56 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked.
[2018-10-02 12:14:06,256 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:06,256 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18
[2018-10-02 12:14:06,257 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 19 states
[2018-10-02 12:14:06,257 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2018-10-02 12:14:06,258 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:06,258 INFO  L87              Difference]: Start difference. First operand 77 states and 81 transitions. Second operand 19 states.
[2018-10-02 12:14:06,485 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:06,486 INFO  L93              Difference]: Finished difference Result 143 states and 154 transitions.
[2018-10-02 12:14:06,487 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2018-10-02 12:14:06,488 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states. Word has length 76
[2018-10-02 12:14:06,488 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:06,489 INFO  L225             Difference]: With dead ends: 143
[2018-10-02 12:14:06,489 INFO  L226             Difference]: Without dead ends: 85
[2018-10-02 12:14:06,489 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time 0.6s impTime
[2018-10-02 12:14:06,490 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2018-10-02 12:14:06,505 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85.
[2018-10-02 12:14:06,505 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 85 states.
[2018-10-02 12:14:06,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 89 transitions.
[2018-10-02 12:14:06,507 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 89 transitions. Word has length 76
[2018-10-02 12:14:06,507 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:06,507 INFO  L480      AbstractCegarLoop]: Abstraction has 85 states and 89 transitions.
[2018-10-02 12:14:06,507 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 19 states.
[2018-10-02 12:14:06,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 89 transitions.
[2018-10-02 12:14:06,508 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2018-10-02 12:14:06,508 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:06,509 INFO  L375         BasicCegarLoop]: trace histogram [36, 32, 5, 4, 4, 1, 1, 1]
[2018-10-02 12:14:06,509 INFO  L423      AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:06,509 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:06,509 INFO  L82        PathProgramCache]: Analyzing trace with hash 771511391, now seen corresponding path program 8 times
[2018-10-02 12:14:06,509 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:06,510 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:06,510 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:06,511 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:14:06,511 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:06,526 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:06,778 INFO  L134       CoverageAnalysis]: Checked inductivity of 1280 backedges. 494 proven. 72 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked.
[2018-10-02 12:14:06,779 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:06,779 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:06,792 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1
[2018-10-02 12:14:06,845 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2018-10-02 12:14:06,845 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:06,849 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:06,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 1280 backedges. 494 proven. 72 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked.
[2018-10-02 12:14:07,008 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:07,008 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2018-10-02 12:14:07,009 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 21 states
[2018-10-02 12:14:07,009 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2018-10-02 12:14:07,009 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:07,010 INFO  L87              Difference]: Start difference. First operand 85 states and 89 transitions. Second operand 21 states.
[2018-10-02 12:14:07,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:07,278 INFO  L93              Difference]: Finished difference Result 157 states and 168 transitions.
[2018-10-02 12:14:07,278 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2018-10-02 12:14:07,278 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states. Word has length 84
[2018-10-02 12:14:07,279 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:07,279 INFO  L225             Difference]: With dead ends: 157
[2018-10-02 12:14:07,279 INFO  L226             Difference]: Without dead ends: 93
[2018-10-02 12:14:07,280 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.1s impTime
[2018-10-02 12:14:07,280 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 93 states.
[2018-10-02 12:14:07,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93.
[2018-10-02 12:14:07,294 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 93 states.
[2018-10-02 12:14:07,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions.
[2018-10-02 12:14:07,296 INFO  L78                 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 84
[2018-10-02 12:14:07,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:07,296 INFO  L480      AbstractCegarLoop]: Abstraction has 93 states and 97 transitions.
[2018-10-02 12:14:07,296 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 21 states.
[2018-10-02 12:14:07,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions.
[2018-10-02 12:14:07,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2018-10-02 12:14:07,298 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:07,298 INFO  L375         BasicCegarLoop]: trace histogram [40, 36, 5, 4, 4, 1, 1, 1]
[2018-10-02 12:14:07,298 INFO  L423      AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:07,298 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:07,299 INFO  L82        PathProgramCache]: Analyzing trace with hash 1630563271, now seen corresponding path program 9 times
[2018-10-02 12:14:07,299 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:07,299 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:07,300 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:07,300 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:07,300 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:07,313 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:07,485 INFO  L134       CoverageAnalysis]: Checked inductivity of 1580 backedges. 608 proven. 90 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2018-10-02 12:14:07,485 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:07,486 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:07,495 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2
[2018-10-02 12:14:07,528 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2018-10-02 12:14:07,529 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:07,535 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:07,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 1580 backedges. 608 proven. 90 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked.
[2018-10-02 12:14:07,833 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:07,834 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22
[2018-10-02 12:14:07,834 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 23 states
[2018-10-02 12:14:07,834 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2018-10-02 12:14:07,835 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:07,835 INFO  L87              Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 23 states.
[2018-10-02 12:14:08,118 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:08,119 INFO  L93              Difference]: Finished difference Result 171 states and 182 transitions.
[2018-10-02 12:14:08,119 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2018-10-02 12:14:08,119 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states. Word has length 92
[2018-10-02 12:14:08,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:08,120 INFO  L225             Difference]: With dead ends: 171
[2018-10-02 12:14:08,120 INFO  L226             Difference]: Without dead ends: 101
[2018-10-02 12:14:08,120 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.1s impTime
[2018-10-02 12:14:08,121 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2018-10-02 12:14:08,137 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101.
[2018-10-02 12:14:08,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 101 states.
[2018-10-02 12:14:08,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 105 transitions.
[2018-10-02 12:14:08,138 INFO  L78                 Accepts]: Start accepts. Automaton has 101 states and 105 transitions. Word has length 92
[2018-10-02 12:14:08,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:08,139 INFO  L480      AbstractCegarLoop]: Abstraction has 101 states and 105 transitions.
[2018-10-02 12:14:08,139 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 23 states.
[2018-10-02 12:14:08,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions.
[2018-10-02 12:14:08,140 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 101
[2018-10-02 12:14:08,140 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:08,141 INFO  L375         BasicCegarLoop]: trace histogram [44, 40, 5, 4, 4, 1, 1, 1]
[2018-10-02 12:14:08,141 INFO  L423      AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:08,141 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:08,141 INFO  L82        PathProgramCache]: Analyzing trace with hash -220374225, now seen corresponding path program 10 times
[2018-10-02 12:14:08,141 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:08,141 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:08,142 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,142 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,142 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:08,386 INFO  L134       CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked.
[2018-10-02 12:14:08,387 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:08,387 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:08,397 INFO  L103   rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST
[2018-10-02 12:14:08,450 INFO  L242   tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2018-10-02 12:14:08,450 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:08,454 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:08,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 1912 backedges. 0 proven. 1472 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked.
[2018-10-02 12:14:08,702 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:08,702 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2018-10-02 12:14:08,702 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 12 states
[2018-10-02 12:14:08,703 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2018-10-02 12:14:08,703 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:08,703 INFO  L87              Difference]: Start difference. First operand 101 states and 105 transitions. Second operand 12 states.
[2018-10-02 12:14:08,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:08,898 INFO  L93              Difference]: Finished difference Result 149 states and 155 transitions.
[2018-10-02 12:14:08,898 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2018-10-02 12:14:08,898 INFO  L78                 Accepts]: Start accepts. Automaton has 12 states. Word has length 100
[2018-10-02 12:14:08,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:08,900 INFO  L225             Difference]: With dead ends: 149
[2018-10-02 12:14:08,900 INFO  L226             Difference]: Without dead ends: 147
[2018-10-02 12:14:08,900 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.0s impTime
[2018-10-02 12:14:08,900 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 147 states.
[2018-10-02 12:14:08,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 125.
[2018-10-02 12:14:08,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 125 states.
[2018-10-02 12:14:08,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 130 transitions.
[2018-10-02 12:14:08,923 INFO  L78                 Accepts]: Start accepts. Automaton has 125 states and 130 transitions. Word has length 100
[2018-10-02 12:14:08,924 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:08,924 INFO  L480      AbstractCegarLoop]: Abstraction has 125 states and 130 transitions.
[2018-10-02 12:14:08,924 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 12 states.
[2018-10-02 12:14:08,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 130 transitions.
[2018-10-02 12:14:08,926 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2018-10-02 12:14:08,926 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:08,926 INFO  L375         BasicCegarLoop]: trace histogram [55, 50, 6, 5, 5, 1, 1, 1]
[2018-10-02 12:14:08,926 INFO  L423      AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:08,926 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:08,927 INFO  L82        PathProgramCache]: Analyzing trace with hash 1446024969, now seen corresponding path program 11 times
[2018-10-02 12:14:08,927 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:08,927 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:08,927 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,928 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,928 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:08,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:09,340 INFO  L134       CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked.
[2018-10-02 12:14:09,341 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:09,341 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:09,350 INFO  L103   rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1
[2018-10-02 12:14:09,430 INFO  L242   tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s)
[2018-10-02 12:14:09,430 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:09,435 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:09,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 3000 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked.
[2018-10-02 12:14:09,859 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:09,859 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13
[2018-10-02 12:14:09,860 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 14 states
[2018-10-02 12:14:09,860 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2018-10-02 12:14:09,860 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:09,860 INFO  L87              Difference]: Start difference. First operand 125 states and 130 transitions. Second operand 14 states.
[2018-10-02 12:14:09,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:09,970 INFO  L93              Difference]: Finished difference Result 173 states and 180 transitions.
[2018-10-02 12:14:09,970 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2018-10-02 12:14:09,970 INFO  L78                 Accepts]: Start accepts. Automaton has 14 states. Word has length 124
[2018-10-02 12:14:09,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:09,972 INFO  L225             Difference]: With dead ends: 173
[2018-10-02 12:14:09,972 INFO  L226             Difference]: Without dead ends: 171
[2018-10-02 12:14:09,972 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time 0.2s impTime
[2018-10-02 12:14:09,973 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 171 states.
[2018-10-02 12:14:09,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 149.
[2018-10-02 12:14:09,996 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 149 states.
[2018-10-02 12:14:09,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 155 transitions.
[2018-10-02 12:14:09,997 INFO  L78                 Accepts]: Start accepts. Automaton has 149 states and 155 transitions. Word has length 124
[2018-10-02 12:14:09,997 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:09,997 INFO  L480      AbstractCegarLoop]: Abstraction has 149 states and 155 transitions.
[2018-10-02 12:14:09,997 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 14 states.
[2018-10-02 12:14:09,997 INFO  L276                IsEmpty]: Start isEmpty. Operand 149 states and 155 transitions.
[2018-10-02 12:14:09,999 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2018-10-02 12:14:09,999 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:09,999 INFO  L375         BasicCegarLoop]: trace histogram [66, 60, 7, 6, 6, 1, 1, 1]
[2018-10-02 12:14:09,999 INFO  L423      AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:10,000 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:10,000 INFO  L82        PathProgramCache]: Analyzing trace with hash 1667523811, now seen corresponding path program 12 times
[2018-10-02 12:14:10,000 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:10,000 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:10,001 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:10,001 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:10,001 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:10,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:10,217 INFO  L134       CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked.
[2018-10-02 12:14:10,217 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:10,217 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:10,225 INFO  L103   rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE
[2018-10-02 12:14:10,300 INFO  L242   tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s)
[2018-10-02 12:14:10,300 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:10,303 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:10,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 4332 backedges. 0 proven. 3672 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked.
[2018-10-02 12:14:10,731 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:10,732 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15
[2018-10-02 12:14:10,732 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 16 states
[2018-10-02 12:14:10,732 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2018-10-02 12:14:10,733 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:10,733 INFO  L87              Difference]: Start difference. First operand 149 states and 155 transitions. Second operand 16 states.
[2018-10-02 12:14:10,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:10,952 INFO  L93              Difference]: Finished difference Result 197 states and 205 transitions.
[2018-10-02 12:14:10,952 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2018-10-02 12:14:10,952 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states. Word has length 148
[2018-10-02 12:14:10,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:10,953 INFO  L225             Difference]: With dead ends: 197
[2018-10-02 12:14:10,954 INFO  L226             Difference]: Without dead ends: 195
[2018-10-02 12:14:10,954 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time 0.1s impTime
[2018-10-02 12:14:10,954 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 195 states.
[2018-10-02 12:14:10,980 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 173.
[2018-10-02 12:14:10,981 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 173 states.
[2018-10-02 12:14:10,981 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 180 transitions.
[2018-10-02 12:14:10,982 INFO  L78                 Accepts]: Start accepts. Automaton has 173 states and 180 transitions. Word has length 148
[2018-10-02 12:14:10,982 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:10,982 INFO  L480      AbstractCegarLoop]: Abstraction has 173 states and 180 transitions.
[2018-10-02 12:14:10,982 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 16 states.
[2018-10-02 12:14:10,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 173 states and 180 transitions.
[2018-10-02 12:14:10,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 173
[2018-10-02 12:14:10,984 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:10,984 INFO  L375         BasicCegarLoop]: trace histogram [77, 70, 8, 7, 7, 1, 1, 1]
[2018-10-02 12:14:10,985 INFO  L423      AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:10,985 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:10,985 INFO  L82        PathProgramCache]: Analyzing trace with hash 107136189, now seen corresponding path program 13 times
[2018-10-02 12:14:10,985 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:10,985 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:10,986 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:10,986 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:10,986 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:11,009 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:11,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked.
[2018-10-02 12:14:11,211 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:11,211 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:11,222 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:14:11,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:11,300 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:11,727 INFO  L134       CoverageAnalysis]: Checked inductivity of 5908 backedges. 0 proven. 5138 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked.
[2018-10-02 12:14:11,748 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:11,748 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17
[2018-10-02 12:14:11,748 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 18 states
[2018-10-02 12:14:11,749 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2018-10-02 12:14:11,749 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:11,749 INFO  L87              Difference]: Start difference. First operand 173 states and 180 transitions. Second operand 18 states.
[2018-10-02 12:14:12,009 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:12,009 INFO  L93              Difference]: Finished difference Result 221 states and 230 transitions.
[2018-10-02 12:14:12,017 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2018-10-02 12:14:12,018 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states. Word has length 172
[2018-10-02 12:14:12,018 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:12,019 INFO  L225             Difference]: With dead ends: 221
[2018-10-02 12:14:12,019 INFO  L226             Difference]: Without dead ends: 219
[2018-10-02 12:14:12,020 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time 0.1s impTime
[2018-10-02 12:14:12,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2018-10-02 12:14:12,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197.
[2018-10-02 12:14:12,057 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 197 states.
[2018-10-02 12:14:12,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 205 transitions.
[2018-10-02 12:14:12,058 INFO  L78                 Accepts]: Start accepts. Automaton has 197 states and 205 transitions. Word has length 172
[2018-10-02 12:14:12,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:12,059 INFO  L480      AbstractCegarLoop]: Abstraction has 197 states and 205 transitions.
[2018-10-02 12:14:12,059 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 18 states.
[2018-10-02 12:14:12,059 INFO  L276                IsEmpty]: Start isEmpty. Operand 197 states and 205 transitions.
[2018-10-02 12:14:12,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2018-10-02 12:14:12,061 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:12,061 INFO  L375         BasicCegarLoop]: trace histogram [88, 80, 9, 8, 8, 1, 1, 1]
[2018-10-02 12:14:12,062 INFO  L423      AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:12,062 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:12,062 INFO  L82        PathProgramCache]: Analyzing trace with hash -1927956841, now seen corresponding path program 14 times
[2018-10-02 12:14:12,062 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:12,062 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:12,063 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:12,063 INFO  L103   rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-10-02 12:14:12,063 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:12,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:12,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked.
[2018-10-02 12:14:12,907 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:12,908 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:12,916 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1
[2018-10-02 12:14:13,038 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2018-10-02 12:14:13,038 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:13,045 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:13,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 7728 backedges. 0 proven. 6848 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked.
[2018-10-02 12:14:13,569 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:13,570 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19
[2018-10-02 12:14:13,570 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 20 states
[2018-10-02 12:14:13,570 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2018-10-02 12:14:13,570 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:13,571 INFO  L87              Difference]: Start difference. First operand 197 states and 205 transitions. Second operand 20 states.
[2018-10-02 12:14:13,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:13,751 INFO  L93              Difference]: Finished difference Result 245 states and 255 transitions.
[2018-10-02 12:14:13,752 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2018-10-02 12:14:13,752 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states. Word has length 196
[2018-10-02 12:14:13,752 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:13,753 INFO  L225             Difference]: With dead ends: 245
[2018-10-02 12:14:13,753 INFO  L226             Difference]: Without dead ends: 243
[2018-10-02 12:14:13,754 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time 0.5s impTime
[2018-10-02 12:14:13,754 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2018-10-02 12:14:13,790 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 221.
[2018-10-02 12:14:13,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 221 states.
[2018-10-02 12:14:13,791 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 230 transitions.
[2018-10-02 12:14:13,791 INFO  L78                 Accepts]: Start accepts. Automaton has 221 states and 230 transitions. Word has length 196
[2018-10-02 12:14:13,792 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:13,792 INFO  L480      AbstractCegarLoop]: Abstraction has 221 states and 230 transitions.
[2018-10-02 12:14:13,792 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 20 states.
[2018-10-02 12:14:13,792 INFO  L276                IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions.
[2018-10-02 12:14:13,794 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2018-10-02 12:14:13,795 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:13,795 INFO  L375         BasicCegarLoop]: trace histogram [99, 90, 10, 9, 9, 1, 1, 1]
[2018-10-02 12:14:13,795 INFO  L423      AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:13,795 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:13,795 INFO  L82        PathProgramCache]: Analyzing trace with hash -1486407055, now seen corresponding path program 15 times
[2018-10-02 12:14:13,796 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:13,796 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:13,796 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:13,796 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:13,797 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:13,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:14,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked.
[2018-10-02 12:14:14,107 INFO  L300   seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-10-02 12:14:14,107 INFO  L227   ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-10-02 12:14:14,117 INFO  L103   rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2
[2018-10-02 12:14:14,265 INFO  L242   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 50 check-sat command(s)
[2018-10-02 12:14:14,265 INFO  L243   tOrderPrioritization]: Conjunction of SSA is unsat
[2018-10-02 12:14:14,270 INFO  L273         TraceCheckSpWp]: Computing forward predicates...
[2018-10-02 12:14:14,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 9792 backedges. 0 proven. 8802 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked.
[2018-10-02 12:14:14,806 INFO  L312   seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-10-02 12:14:14,806 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21
[2018-10-02 12:14:14,806 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 22 states
[2018-10-02 12:14:14,807 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2018-10-02 12:14:14,807 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:14,807 INFO  L87              Difference]: Start difference. First operand 221 states and 230 transitions. Second operand 22 states.
[2018-10-02 12:14:15,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:15,067 INFO  L93              Difference]: Finished difference Result 269 states and 280 transitions.
[2018-10-02 12:14:15,067 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2018-10-02 12:14:15,067 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states. Word has length 220
[2018-10-02 12:14:15,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:15,069 INFO  L225             Difference]: With dead ends: 269
[2018-10-02 12:14:15,069 INFO  L226             Difference]: Without dead ends: 267
[2018-10-02 12:14:15,069 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time 0.1s impTime
[2018-10-02 12:14:15,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2018-10-02 12:14:15,114 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 245.
[2018-10-02 12:14:15,114 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 245 states.
[2018-10-02 12:14:15,115 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 255 transitions.
[2018-10-02 12:14:15,115 INFO  L78                 Accepts]: Start accepts. Automaton has 245 states and 255 transitions. Word has length 220
[2018-10-02 12:14:15,116 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:15,116 INFO  L480      AbstractCegarLoop]: Abstraction has 245 states and 255 transitions.
[2018-10-02 12:14:15,116 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 22 states.
[2018-10-02 12:14:15,116 INFO  L276                IsEmpty]: Start isEmpty. Operand 245 states and 255 transitions.
[2018-10-02 12:14:15,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2018-10-02 12:14:15,117 INFO  L367         BasicCegarLoop]: Found error trace
[2018-10-02 12:14:15,117 INFO  L375         BasicCegarLoop]: trace histogram [110, 100, 11, 10, 10, 1, 1, 1]
[2018-10-02 12:14:15,118 INFO  L423      AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-10-02 12:14:15,118 INFO  L103      BPredicateUnifier]: Initialized predicate-trie based predicate unifier
[2018-10-02 12:14:15,118 INFO  L82        PathProgramCache]: Analyzing trace with hash 1732333643, now seen corresponding path program 16 times
[2018-10-02 12:14:15,118 INFO  L227   ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-10-02 12:14:15,118 INFO  L69    tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-10-02 12:14:15,119 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:15,119 INFO  L101   rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2018-10-02 12:14:15,119 INFO  L119   rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-10-02 12:14:15,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-10-02 12:14:19,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 12100 backedges. 12082 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2018-10-02 12:14:19,026 INFO  L312   seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-10-02 12:14:19,026 INFO  L327   seRefinementStrategy]: Number of different interpolants: perfect sequences [102] imperfect sequences [] total 102
[2018-10-02 12:14:19,026 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 103 states
[2018-10-02 12:14:19,028 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants.
[2018-10-02 12:14:19,028 INFO  L146   InterpolantAutomaton]: No coverage relation statistics for ImplicationMap
[2018-10-02 12:14:19,028 INFO  L87              Difference]: Start difference. First operand 245 states and 255 transitions. Second operand 103 states.
[2018-10-02 12:14:22,952 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-10-02 12:14:22,953 INFO  L93              Difference]: Finished difference Result 10235 states and 10695 transitions.
[2018-10-02 12:14:22,953 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. 
[2018-10-02 12:14:22,953 INFO  L78                 Accepts]: Start accepts. Automaton has 103 states. Word has length 244
[2018-10-02 12:14:22,954 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2018-10-02 12:14:22,954 INFO  L225             Difference]: With dead ends: 10235
[2018-10-02 12:14:22,954 INFO  L226             Difference]: Without dead ends: 0
[2018-10-02 12:14:22,965 INFO  L605         BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s Time 3.2s impTime
[2018-10-02 12:14:22,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2018-10-02 12:14:22,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2018-10-02 12:14:22,966 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2018-10-02 12:14:22,966 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2018-10-02 12:14:22,966 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244
[2018-10-02 12:14:22,966 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2018-10-02 12:14:22,966 INFO  L480      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-10-02 12:14:22,966 INFO  L481      AbstractCegarLoop]: Interpolant automaton has 103 states.
[2018-10-02 12:14:22,967 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2018-10-02 12:14:22,967 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2018-10-02 12:14:22,971 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2018-10-02 12:14:28,861 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:28,863 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:28,872 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,001 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,084 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,124 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,214 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,242 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,409 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,462 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,647 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,700 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:29,989 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,015 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,136 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,215 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,347 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,450 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,538 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,761 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:30,837 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:31,345 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:31,433 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:31,524 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:31,774 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:32,169 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:32,551 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:32,924 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:33,180 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:33,344 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:33,489 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:33,653 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:34,427 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:34,534 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:34,797 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:34,907 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:35,494 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:35,691 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:35,793 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:36,247 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:36,442 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:36,666 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:36,711 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,172 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,292 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,337 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,425 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,473 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,567 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:37,695 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:38,808 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:38,821 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:39,284 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:39,860 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:40,304 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:40,718 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:41,164 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:43,301 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:45,148 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:45,305 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:45,962 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:45,977 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:48,950 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:50,341 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:50,556 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:51,194 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:52,186 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:54,774 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:56,701 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:14:59,402 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:01,848 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:05,553 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:05,713 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:13,181 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:35,382 WARN  L178               SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 5105 DAG size of output: 1935
[2018-10-02 12:15:39,700 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,701 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,705 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,769 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,812 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,833 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,882 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,897 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:39,988 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,019 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,136 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,173 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,335 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,485 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,589 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,640 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,761 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,862 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:40,953 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:41,156 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:41,231 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:41,749 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:41,840 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:41,933 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:42,166 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:42,422 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:42,802 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:43,214 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:43,484 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:43,667 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:43,839 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:44,158 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:44,879 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:44,987 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:45,264 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:45,374 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:45,937 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,131 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,232 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,619 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,761 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,860 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:46,906 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,514 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,636 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,674 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,760 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,809 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:47,904 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:48,031 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:49,117 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:49,127 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:49,449 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:50,020 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:50,466 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:51,041 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:51,548 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:53,383 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:55,493 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:55,660 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:56,199 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:56,215 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:15:59,156 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:00,223 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:00,408 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:00,958 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:01,952 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:04,112 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:06,010 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:08,526 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:10,945 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:14,859 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:15,028 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:22,567 WARN  L250   erpolLogProxyWrapper]: Already inconsistent.
[2018-10-02 12:16:45,934 WARN  L178               SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 5105 DAG size of output: 1935
[2018-10-02 12:16:46,769 WARN  L178               SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 664
[2018-10-02 12:16:47,780 WARN  L178               SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 673 DAG size of output: 664
[2018-10-02 12:18:02,560 WARN  L178               SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 1932 DAG size of output: 362
Received shutdown request...
[2018-10-02 12:18:11,490 WARN  L186               SmtUtils]: Removed 1248 from assertion stack
[2018-10-02 12:18:11,491 INFO  L256        ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user
[2018-10-02 12:18:11,492 INFO  L168              Benchmark]: Toolchain (without parser) took 254408.09 ms. Allocated memory was 1.6 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -803.2 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,494 INFO  L168              Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,494 INFO  L168              Benchmark]: Boogie Procedure Inliner took 43.82 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,495 INFO  L168              Benchmark]: Boogie Preprocessor took 21.91 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,496 INFO  L168              Benchmark]: RCFGBuilder took 314.86 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,498 INFO  L168              Benchmark]: TraceAbstraction took 254021.38 ms. Allocated memory was 1.6 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -824.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB.
[2018-10-02 12:18:11,503 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 43.82 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 21.91 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
 * RCFGBuilder took 314.86 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 254021.38 ms. Allocated memory was 1.6 GB in the beginning and 3.5 GB in the end (delta: 1.9 GB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -824.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 50]: assertion always holds
    For all program executions holds that assertion always holds at this location
  - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction)
    Toolchain cancelled  while SimplifyDDAWithTimeout was simplifying term of DAG size 1932.
RESULT: Ultimate could not prove your program: Timeout
Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested.i_4.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-02_12-18-11-519.csv
Completed graceful shutdown