java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/reducercommutativity/sum60_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a-m [2018-01-30 01:03:39,009 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:03:39,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:03:39,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:03:39,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:03:39,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:03:39,030 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:03:39,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:03:39,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:03:39,034 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:03:39,035 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:03:39,035 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:03:39,035 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:03:39,037 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:03:39,037 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:03:39,038 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:03:39,045 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:03:39,046 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:03:39,047 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:03:39,047 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:03:39,048 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 01:03:39,056 INFO L98 SettingsManager]: Beginning loading settings from /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:03:39,062 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:03:39,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:03:39,062 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:03:39,062 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:03:39,062 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:03:39,062 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:03:39,063 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-30 01:03:39,063 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-30 01:03:39,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:03:39,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:03:39,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:03:39,065 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:03:39,069 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:03:39,070 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:03:39,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:03:39,104 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:03:39,106 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:03:39,107 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:03:39,107 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:03:39,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/sum60_true-unreach-call.i [2018-01-30 01:03:39,174 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:03:39,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 01:03:39,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:03:39,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:03:39,179 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:03:39,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a007bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39, skipping insertion in model container [2018-01-30 01:03:39,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,190 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:03:39,198 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:03:39,267 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:03:39,279 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:03:39,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39 WrapperNode [2018-01-30 01:03:39,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:03:39,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:03:39,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:03:39,284 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:03:39,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... [2018-01-30 01:03:39,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:03:39,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:03:39,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:03:39,303 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:03:39,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (1/1) ... No working directory specified, using /home/daniel/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 [2018-01-30 01:03:39,335 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:03:39,335 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:03:39,335 INFO L136 BoogieDeclarations]: Found implementation of procedure sum [2018-01-30 01:03:39,335 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:03:39,335 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:03:39,335 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure sum [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:03:39,336 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:03:39,673 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:03:39,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:03:39 BoogieIcfgContainer [2018-01-30 01:03:39,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:03:39,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:03:39,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:03:39,676 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:03:39,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:03:39" (1/3) ... [2018-01-30 01:03:39,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441d39d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:03:39, skipping insertion in model container [2018-01-30 01:03:39,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:03:39" (2/3) ... [2018-01-30 01:03:39,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@441d39d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:03:39, skipping insertion in model container [2018-01-30 01:03:39,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:03:39" (3/3) ... [2018-01-30 01:03:39,677 INFO L107 eAbstractionObserver]: Analyzing ICFG sum60_true-unreach-call.i [2018-01-30 01:03:39,682 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:03:39,687 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-30 01:03:39,714 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:03:39,714 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:03:39,714 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:03:39,714 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:03:39,714 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:03:39,714 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:03:39,714 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:03:39,714 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:03:39,715 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:03:39,724 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-01-30 01:03:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-01-30 01:03:39,729 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:39,730 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:39,730 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr0AssertViolation]=== [2018-01-30 01:03:39,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1274758379, now seen corresponding path program 1 times [2018-01-30 01:03:39,733 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:39,734 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:39,763 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:39,763 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:39,763 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:39,800 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-01-30 01:03:39,853 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:03:39,853 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 01:03:39,854 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-30 01:03:39,862 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-30 01:03:39,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 01:03:39,863 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-01-30 01:03:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:39,880 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2018-01-30 01:03:39,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-30 01:03:39,880 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 67 [2018-01-30 01:03:39,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:39,886 INFO L225 Difference]: With dead ends: 136 [2018-01-30 01:03:39,886 INFO L226 Difference]: Without dead ends: 71 [2018-01-30 01:03:39,888 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 01:03:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-01-30 01:03:39,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-01-30 01:03:39,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-01-30 01:03:39,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2018-01-30 01:03:39,912 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 67 [2018-01-30 01:03:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:39,912 INFO L432 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2018-01-30 01:03:39,913 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-30 01:03:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2018-01-30 01:03:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-01-30 01:03:39,915 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:39,915 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:39,915 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr0AssertViolation]=== [2018-01-30 01:03:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -780571542, now seen corresponding path program 1 times [2018-01-30 01:03:39,915 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:39,915 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:39,916 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:39,916 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:39,916 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:39,981 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-30 01:03:40,084 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:03:40,084 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:03:40,085 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 01:03:40,086 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 01:03:40,086 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 01:03:40,086 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand 3 states. [2018-01-30 01:03:40,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:40,171 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2018-01-30 01:03:40,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 01:03:40,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2018-01-30 01:03:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:40,172 INFO L225 Difference]: With dead ends: 129 [2018-01-30 01:03:40,172 INFO L226 Difference]: Without dead ends: 78 [2018-01-30 01:03:40,173 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 01:03:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-01-30 01:03:40,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2018-01-30 01:03:40,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-01-30 01:03:40,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 77 transitions. [2018-01-30 01:03:40,178 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 77 transitions. Word has length 72 [2018-01-30 01:03:40,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:40,178 INFO L432 AbstractCegarLoop]: Abstraction has 73 states and 77 transitions. [2018-01-30 01:03:40,178 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 01:03:40,178 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 77 transitions. [2018-01-30 01:03:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-01-30 01:03:40,179 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:40,179 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:40,179 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr0AssertViolation]=== [2018-01-30 01:03:40,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1544788435, now seen corresponding path program 1 times [2018-01-30 01:03:40,180 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:40,180 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:40,180 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,181 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:40,181 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:40,190 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-01-30 01:03:40,272 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:40,272 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:40,296 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:40,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:40,347 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:40,392 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-01-30 01:03:40,409 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:03:40,409 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-01-30 01:03:40,410 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:03:40,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:03:40,410 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:03:40,411 INFO L87 Difference]: Start difference. First operand 73 states and 77 transitions. Second operand 6 states. [2018-01-30 01:03:40,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:40,592 INFO L93 Difference]: Finished difference Result 144 states and 156 transitions. [2018-01-30 01:03:40,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 01:03:40,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2018-01-30 01:03:40,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:40,593 INFO L225 Difference]: With dead ends: 144 [2018-01-30 01:03:40,593 INFO L226 Difference]: Without dead ends: 93 [2018-01-30 01:03:40,594 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:03:40,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2018-01-30 01:03:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 83. [2018-01-30 01:03:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-01-30 01:03:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 87 transitions. [2018-01-30 01:03:40,599 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 87 transitions. Word has length 80 [2018-01-30 01:03:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:40,599 INFO L432 AbstractCegarLoop]: Abstraction has 83 states and 87 transitions. [2018-01-30 01:03:40,599 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:03:40,599 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 87 transitions. [2018-01-30 01:03:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-01-30 01:03:40,600 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:40,601 INFO L350 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:40,601 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr0AssertViolation]=== [2018-01-30 01:03:40,601 INFO L82 PathProgramCache]: Analyzing trace with hash 278598597, now seen corresponding path program 1 times [2018-01-30 01:03:40,601 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:40,601 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:40,602 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,602 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:40,602 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:40,612 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-01-30 01:03:40,690 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:40,690 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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) [2018-01-30 01:03:40,710 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:03:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:40,748 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:40,783 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-01-30 01:03:40,801 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-30 01:03:40,801 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-01-30 01:03:40,802 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:03:40,802 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:03:40,802 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:03:40,802 INFO L87 Difference]: Start difference. First operand 83 states and 87 transitions. Second operand 6 states. [2018-01-30 01:03:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:40,966 INFO L93 Difference]: Finished difference Result 155 states and 166 transitions. [2018-01-30 01:03:40,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 01:03:40,966 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-01-30 01:03:40,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:40,967 INFO L225 Difference]: With dead ends: 155 [2018-01-30 01:03:40,967 INFO L226 Difference]: Without dead ends: 103 [2018-01-30 01:03:40,967 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:03:40,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-01-30 01:03:40,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 93. [2018-01-30 01:03:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-01-30 01:03:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 97 transitions. [2018-01-30 01:03:40,972 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 97 transitions. Word has length 112 [2018-01-30 01:03:40,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:40,972 INFO L432 AbstractCegarLoop]: Abstraction has 93 states and 97 transitions. [2018-01-30 01:03:40,972 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:03:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 97 transitions. [2018-01-30 01:03:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-01-30 01:03:40,973 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:40,973 INFO L350 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:40,973 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr0AssertViolation]=== [2018-01-30 01:03:40,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1429723589, now seen corresponding path program 1 times [2018-01-30 01:03:40,974 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:40,974 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:40,974 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,974 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:40,974 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:40,988 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2018-01-30 01:03:41,091 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:41,091 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:41,096 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:41,129 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2018-01-30 01:03:41,363 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:41,363 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 10 [2018-01-30 01:03:41,363 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 01:03:41,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 01:03:41,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:03:41,364 INFO L87 Difference]: Start difference. First operand 93 states and 97 transitions. Second operand 10 states. [2018-01-30 01:03:41,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:41,510 INFO L93 Difference]: Finished difference Result 182 states and 191 transitions. [2018-01-30 01:03:41,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-01-30 01:03:41,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 144 [2018-01-30 01:03:41,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:41,511 INFO L225 Difference]: With dead ends: 182 [2018-01-30 01:03:41,511 INFO L226 Difference]: Without dead ends: 119 [2018-01-30 01:03:41,512 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2018-01-30 01:03:41,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-01-30 01:03:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2018-01-30 01:03:41,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-01-30 01:03:41,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 113 transitions. [2018-01-30 01:03:41,517 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 113 transitions. Word has length 144 [2018-01-30 01:03:41,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:41,518 INFO L432 AbstractCegarLoop]: Abstraction has 109 states and 113 transitions. [2018-01-30 01:03:41,518 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 01:03:41,518 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 113 transitions. [2018-01-30 01:03:41,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-01-30 01:03:41,519 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:41,519 INFO L350 BasicCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:41,519 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr0AssertViolation]=== [2018-01-30 01:03:41,519 INFO L82 PathProgramCache]: Analyzing trace with hash 918434213, now seen corresponding path program 2 times [2018-01-30 01:03:41,519 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:41,519 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:41,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:41,520 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:41,520 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:41,536 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-01-30 01:03:41,693 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:41,693 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:41,697 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:03:41,708 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:41,728 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:41,739 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:41,742 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2018-01-30 01:03:41,986 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:41,986 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2018-01-30 01:03:41,986 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-30 01:03:41,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-30 01:03:41,987 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:03:41,987 INFO L87 Difference]: Start difference. First operand 109 states and 113 transitions. Second operand 14 states. [2018-01-30 01:03:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:42,232 INFO L93 Difference]: Finished difference Result 206 states and 218 transitions. [2018-01-30 01:03:42,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-01-30 01:03:42,234 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 160 [2018-01-30 01:03:42,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:42,235 INFO L225 Difference]: With dead ends: 206 [2018-01-30 01:03:42,235 INFO L226 Difference]: Without dead ends: 135 [2018-01-30 01:03:42,236 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:03:42,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-01-30 01:03:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2018-01-30 01:03:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-01-30 01:03:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2018-01-30 01:03:42,244 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 160 [2018-01-30 01:03:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:42,244 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2018-01-30 01:03:42,244 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-30 01:03:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2018-01-30 01:03:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-01-30 01:03:42,246 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:42,246 INFO L350 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:42,249 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr0AssertViolation]=== [2018-01-30 01:03:42,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1059719273, now seen corresponding path program 3 times [2018-01-30 01:03:42,249 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:42,249 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:42,250 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,250 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:42,250 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:42,272 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:42,421 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2018-01-30 01:03:42,421 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:42,421 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:42,427 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:03:42,441 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:42,452 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:42,462 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:42,472 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:42,474 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:42,477 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 188 proven. 12 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2018-01-30 01:03:42,538 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:42,538 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-01-30 01:03:42,539 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-30 01:03:42,539 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-30 01:03:42,539 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-01-30 01:03:42,539 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand 9 states. [2018-01-30 01:03:42,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:42,625 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2018-01-30 01:03:42,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-01-30 01:03:42,626 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 192 [2018-01-30 01:03:42,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:42,627 INFO L225 Difference]: With dead ends: 180 [2018-01-30 01:03:42,627 INFO L226 Difference]: Without dead ends: 138 [2018-01-30 01:03:42,627 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-01-30 01:03:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2018-01-30 01:03:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 133. [2018-01-30 01:03:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-01-30 01:03:42,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 137 transitions. [2018-01-30 01:03:42,631 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 137 transitions. Word has length 192 [2018-01-30 01:03:42,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:42,633 INFO L432 AbstractCegarLoop]: Abstraction has 133 states and 137 transitions. [2018-01-30 01:03:42,633 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-30 01:03:42,633 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 137 transitions. [2018-01-30 01:03:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-01-30 01:03:42,634 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:42,634 INFO L350 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:42,634 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr0AssertViolation]=== [2018-01-30 01:03:42,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1802943502, now seen corresponding path program 4 times [2018-01-30 01:03:42,635 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:42,635 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:42,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,635 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:42,635 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:42,660 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2018-01-30 01:03:42,833 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:42,833 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:42,838 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:03:42,868 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:42,871 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:42,896 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2018-01-30 01:03:42,913 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:42,913 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2018-01-30 01:03:42,913 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-01-30 01:03:42,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-01-30 01:03:42,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-01-30 01:03:42,914 INFO L87 Difference]: Start difference. First operand 133 states and 137 transitions. Second operand 13 states. [2018-01-30 01:03:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:42,979 INFO L93 Difference]: Finished difference Result 233 states and 241 transitions. [2018-01-30 01:03:42,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-01-30 01:03:42,979 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 200 [2018-01-30 01:03:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:42,979 INFO L225 Difference]: With dead ends: 233 [2018-01-30 01:03:42,980 INFO L226 Difference]: Without dead ends: 146 [2018-01-30 01:03:42,980 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=139, Invalid=281, Unknown=0, NotChecked=0, Total=420 [2018-01-30 01:03:42,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-01-30 01:03:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2018-01-30 01:03:42,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-01-30 01:03:42,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 145 transitions. [2018-01-30 01:03:42,986 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 145 transitions. Word has length 200 [2018-01-30 01:03:42,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:42,986 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 145 transitions. [2018-01-30 01:03:42,986 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-01-30 01:03:42,986 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 145 transitions. [2018-01-30 01:03:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-01-30 01:03:42,987 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:42,988 INFO L350 BasicCegarLoop]: trace histogram [12, 9, 9, 9, 9, 9, 9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:42,988 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr0AssertViolation]=== [2018-01-30 01:03:42,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1334925687, now seen corresponding path program 5 times [2018-01-30 01:03:42,988 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:42,988 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:42,988 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,988 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:42,988 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:42,998 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:43,113 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2018-01-30 01:03:43,113 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:43,113 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:43,128 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:03:43,136 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:43,148 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:43,152 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:43,158 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:43,159 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:43,161 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:43,261 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 182 proven. 30 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-01-30 01:03:43,278 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:43,278 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2018-01-30 01:03:43,278 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-01-30 01:03:43,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-01-30 01:03:43,279 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2018-01-30 01:03:43,279 INFO L87 Difference]: Start difference. First operand 141 states and 145 transitions. Second operand 20 states. [2018-01-30 01:03:43,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:43,598 INFO L93 Difference]: Finished difference Result 254 states and 266 transitions. [2018-01-30 01:03:43,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-01-30 01:03:43,600 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 208 [2018-01-30 01:03:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:43,600 INFO L225 Difference]: With dead ends: 254 [2018-01-30 01:03:43,600 INFO L226 Difference]: Without dead ends: 167 [2018-01-30 01:03:43,601 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=1005, Unknown=0, NotChecked=0, Total=1260 [2018-01-30 01:03:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-01-30 01:03:43,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2018-01-30 01:03:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-01-30 01:03:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 161 transitions. [2018-01-30 01:03:43,608 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 161 transitions. Word has length 208 [2018-01-30 01:03:43,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:43,609 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 161 transitions. [2018-01-30 01:03:43,609 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-01-30 01:03:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 161 transitions. [2018-01-30 01:03:43,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-01-30 01:03:43,615 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:43,615 INFO L350 BasicCegarLoop]: trace histogram [15, 12, 12, 12, 12, 12, 12, 12, 7, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:43,615 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr0AssertViolation]=== [2018-01-30 01:03:43,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1311007081, now seen corresponding path program 6 times [2018-01-30 01:03:43,615 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:43,615 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:43,623 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:43,623 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:43,623 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:43,642 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:43,800 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2018-01-30 01:03:43,800 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:43,800 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:43,807 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:03:43,817 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,820 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,824 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,828 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,833 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,848 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,856 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:43,857 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:43,859 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:43,982 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 454 proven. 56 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-01-30 01:03:43,999 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:43,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 24 [2018-01-30 01:03:43,999 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-01-30 01:03:44,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-01-30 01:03:44,000 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:03:44,000 INFO L87 Difference]: Start difference. First operand 157 states and 161 transitions. Second operand 24 states. [2018-01-30 01:03:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:44,292 INFO L93 Difference]: Finished difference Result 278 states and 290 transitions. [2018-01-30 01:03:44,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-01-30 01:03:44,301 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 240 [2018-01-30 01:03:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:44,301 INFO L225 Difference]: With dead ends: 278 [2018-01-30 01:03:44,302 INFO L226 Difference]: Without dead ends: 183 [2018-01-30 01:03:44,302 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=365, Invalid=1527, Unknown=0, NotChecked=0, Total=1892 [2018-01-30 01:03:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-01-30 01:03:44,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-01-30 01:03:44,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-01-30 01:03:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2018-01-30 01:03:44,305 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 240 [2018-01-30 01:03:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:44,305 INFO L432 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2018-01-30 01:03:44,306 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-01-30 01:03:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2018-01-30 01:03:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-01-30 01:03:44,306 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:44,306 INFO L350 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 15, 8, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:44,307 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr0AssertViolation]=== [2018-01-30 01:03:44,307 INFO L82 PathProgramCache]: Analyzing trace with hash 438292315, now seen corresponding path program 7 times [2018-01-30 01:03:44,307 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:44,307 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:44,307 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:44,307 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:44,307 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:44,320 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-01-30 01:03:44,696 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:44,696 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:44,701 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:44,745 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:45,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1172 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-01-30 01:03:45,099 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:45,099 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 19 [2018-01-30 01:03:45,100 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-01-30 01:03:45,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-01-30 01:03:45,100 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2018-01-30 01:03:45,100 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand 19 states. [2018-01-30 01:03:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:45,342 INFO L93 Difference]: Finished difference Result 289 states and 297 transitions. [2018-01-30 01:03:45,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-01-30 01:03:45,342 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 272 [2018-01-30 01:03:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:45,343 INFO L225 Difference]: With dead ends: 289 [2018-01-30 01:03:45,343 INFO L226 Difference]: Without dead ends: 186 [2018-01-30 01:03:45,344 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=340, Invalid=716, Unknown=0, NotChecked=0, Total=1056 [2018-01-30 01:03:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2018-01-30 01:03:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 181. [2018-01-30 01:03:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-01-30 01:03:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 185 transitions. [2018-01-30 01:03:45,350 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 185 transitions. Word has length 272 [2018-01-30 01:03:45,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:45,350 INFO L432 AbstractCegarLoop]: Abstraction has 181 states and 185 transitions. [2018-01-30 01:03:45,350 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-01-30 01:03:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 185 transitions. [2018-01-30 01:03:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-01-30 01:03:45,351 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:45,351 INFO L350 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 15, 9, 8, 8, 8, 8, 8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:45,351 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr0AssertViolation]=== [2018-01-30 01:03:45,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1690774468, now seen corresponding path program 8 times [2018-01-30 01:03:45,352 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:45,352 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:45,352 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:45,352 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:45,352 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:45,365 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-01-30 01:03:45,581 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:45,581 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:45,588 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:03:45,605 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:45,621 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:45,625 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:45,627 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:45,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1230 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-01-30 01:03:45,708 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:45,709 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2018-01-30 01:03:45,709 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-01-30 01:03:45,709 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-01-30 01:03:45,709 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2018-01-30 01:03:45,710 INFO L87 Difference]: Start difference. First operand 181 states and 185 transitions. Second operand 21 states. [2018-01-30 01:03:45,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:45,907 INFO L93 Difference]: Finished difference Result 297 states and 305 transitions. [2018-01-30 01:03:45,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-01-30 01:03:45,919 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 280 [2018-01-30 01:03:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:45,920 INFO L225 Difference]: With dead ends: 297 [2018-01-30 01:03:45,920 INFO L226 Difference]: Without dead ends: 194 [2018-01-30 01:03:45,921 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=427, Invalid=905, Unknown=0, NotChecked=0, Total=1332 [2018-01-30 01:03:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-01-30 01:03:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 189. [2018-01-30 01:03:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-01-30 01:03:45,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 193 transitions. [2018-01-30 01:03:45,924 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 193 transitions. Word has length 280 [2018-01-30 01:03:45,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:45,924 INFO L432 AbstractCegarLoop]: Abstraction has 189 states and 193 transitions. [2018-01-30 01:03:45,924 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-01-30 01:03:45,924 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 193 transitions. [2018-01-30 01:03:45,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-01-30 01:03:45,925 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:45,925 INFO L350 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 15, 10, 9, 9, 9, 9, 9, 9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:45,925 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr0AssertViolation]=== [2018-01-30 01:03:45,925 INFO L82 PathProgramCache]: Analyzing trace with hash -2140926163, now seen corresponding path program 9 times [2018-01-30 01:03:45,925 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:45,925 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:45,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:45,926 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:45,926 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:45,937 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2018-01-30 01:03:46,451 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:46,452 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:46,456 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:03:46,466 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:46,471 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:46,476 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:46,484 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:46,501 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:46,503 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:46,505 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 460 proven. 30 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2018-01-30 01:03:46,616 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:46,617 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 9] total 28 [2018-01-30 01:03:46,617 INFO L409 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-01-30 01:03:46,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-01-30 01:03:46,617 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2018-01-30 01:03:46,617 INFO L87 Difference]: Start difference. First operand 189 states and 193 transitions. Second operand 28 states. [2018-01-30 01:03:47,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:47,075 INFO L93 Difference]: Finished difference Result 318 states and 327 transitions. [2018-01-30 01:03:47,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-01-30 01:03:47,076 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 288 [2018-01-30 01:03:47,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:47,076 INFO L225 Difference]: With dead ends: 318 [2018-01-30 01:03:47,077 INFO L226 Difference]: Without dead ends: 215 [2018-01-30 01:03:47,078 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=575, Invalid=2077, Unknown=0, NotChecked=0, Total=2652 [2018-01-30 01:03:47,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2018-01-30 01:03:47,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 205. [2018-01-30 01:03:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2018-01-30 01:03:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 209 transitions. [2018-01-30 01:03:47,081 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 209 transitions. Word has length 288 [2018-01-30 01:03:47,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:47,082 INFO L432 AbstractCegarLoop]: Abstraction has 205 states and 209 transitions. [2018-01-30 01:03:47,082 INFO L433 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-01-30 01:03:47,082 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 209 transitions. [2018-01-30 01:03:47,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-01-30 01:03:47,083 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:47,083 INFO L350 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 15, 11, 10, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:47,083 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr0AssertViolation]=== [2018-01-30 01:03:47,083 INFO L82 PathProgramCache]: Analyzing trace with hash -584748275, now seen corresponding path program 10 times [2018-01-30 01:03:47,083 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:47,083 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:47,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:47,084 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:47,084 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:47,095 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2018-01-30 01:03:47,879 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:47,879 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:47,884 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:03:47,933 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:47,936 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2018-01-30 01:03:47,999 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:47,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 25 [2018-01-30 01:03:48,000 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-01-30 01:03:48,000 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-01-30 01:03:48,000 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2018-01-30 01:03:48,000 INFO L87 Difference]: Start difference. First operand 205 states and 209 transitions. Second operand 25 states. [2018-01-30 01:03:48,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:48,258 INFO L93 Difference]: Finished difference Result 329 states and 337 transitions. [2018-01-30 01:03:48,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-01-30 01:03:48,266 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 304 [2018-01-30 01:03:48,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:48,266 INFO L225 Difference]: With dead ends: 329 [2018-01-30 01:03:48,266 INFO L226 Difference]: Without dead ends: 218 [2018-01-30 01:03:48,267 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=631, Invalid=1349, Unknown=0, NotChecked=0, Total=1980 [2018-01-30 01:03:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2018-01-30 01:03:48,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 213. [2018-01-30 01:03:48,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-01-30 01:03:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 217 transitions. [2018-01-30 01:03:48,270 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 217 transitions. Word has length 304 [2018-01-30 01:03:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:48,270 INFO L432 AbstractCegarLoop]: Abstraction has 213 states and 217 transitions. [2018-01-30 01:03:48,270 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-01-30 01:03:48,270 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 217 transitions. [2018-01-30 01:03:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2018-01-30 01:03:48,271 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:48,271 INFO L350 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:48,271 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr0AssertViolation]=== [2018-01-30 01:03:48,272 INFO L82 PathProgramCache]: Analyzing trace with hash -254219402, now seen corresponding path program 11 times [2018-01-30 01:03:48,272 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:48,272 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:48,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:48,272 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:48,272 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:48,284 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1478 backedges. 0 proven. 462 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2018-01-30 01:03:48,679 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:48,679 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:48,685 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:03:48,698 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,706 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,707 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,709 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,711 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,714 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,719 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,724 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,733 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,777 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:48,778 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:48,781 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1478 backedges. 454 proven. 90 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2018-01-30 01:03:48,946 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:48,946 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 13] total 36 [2018-01-30 01:03:48,947 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-01-30 01:03:48,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-01-30 01:03:48,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2018-01-30 01:03:48,947 INFO L87 Difference]: Start difference. First operand 213 states and 217 transitions. Second operand 36 states. [2018-01-30 01:03:50,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:50,008 INFO L93 Difference]: Finished difference Result 350 states and 362 transitions. [2018-01-30 01:03:50,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-01-30 01:03:50,019 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 312 [2018-01-30 01:03:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:50,020 INFO L225 Difference]: With dead ends: 350 [2018-01-30 01:03:50,020 INFO L226 Difference]: Without dead ends: 239 [2018-01-30 01:03:50,021 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 857 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=895, Invalid=3661, Unknown=0, NotChecked=0, Total=4556 [2018-01-30 01:03:50,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-01-30 01:03:50,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 229. [2018-01-30 01:03:50,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-01-30 01:03:50,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 233 transitions. [2018-01-30 01:03:50,026 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 233 transitions. Word has length 312 [2018-01-30 01:03:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:50,026 INFO L432 AbstractCegarLoop]: Abstraction has 229 states and 233 transitions. [2018-01-30 01:03:50,026 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-01-30 01:03:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 233 transitions. [2018-01-30 01:03:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-01-30 01:03:50,027 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:50,028 INFO L350 BasicCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 18, 13, 12, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:50,028 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr0AssertViolation]=== [2018-01-30 01:03:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash 87027560, now seen corresponding path program 12 times [2018-01-30 01:03:50,028 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:50,028 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:50,028 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:50,028 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:50,028 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:50,045 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:50,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 0 proven. 552 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2018-01-30 01:03:50,906 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:50,906 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:50,911 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:03:50,922 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:50,933 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:50,942 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:50,953 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:50,963 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:50,990 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,001 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,062 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,110 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,186 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,213 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:03:51,214 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:51,218 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:51,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 644 proven. 56 refuted. 0 times theorem prover too weak. 1270 trivial. 0 not checked. [2018-01-30 01:03:51,388 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:51,388 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 11] total 36 [2018-01-30 01:03:51,389 INFO L409 AbstractCegarLoop]: Interpolant automaton has 36 states [2018-01-30 01:03:51,389 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2018-01-30 01:03:51,389 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1031, Unknown=0, NotChecked=0, Total=1260 [2018-01-30 01:03:51,389 INFO L87 Difference]: Start difference. First operand 229 states and 233 transitions. Second operand 36 states. [2018-01-30 01:03:51,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:51,854 INFO L93 Difference]: Finished difference Result 374 states and 383 transitions. [2018-01-30 01:03:51,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-01-30 01:03:51,866 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 344 [2018-01-30 01:03:51,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:51,867 INFO L225 Difference]: With dead ends: 374 [2018-01-30 01:03:51,867 INFO L226 Difference]: Without dead ends: 255 [2018-01-30 01:03:51,868 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 847 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=965, Invalid=3591, Unknown=0, NotChecked=0, Total=4556 [2018-01-30 01:03:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-01-30 01:03:51,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 245. [2018-01-30 01:03:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2018-01-30 01:03:51,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 249 transitions. [2018-01-30 01:03:51,872 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 249 transitions. Word has length 344 [2018-01-30 01:03:51,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:51,873 INFO L432 AbstractCegarLoop]: Abstraction has 245 states and 249 transitions. [2018-01-30 01:03:51,873 INFO L433 AbstractCegarLoop]: Interpolant automaton has 36 states. [2018-01-30 01:03:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 249 transitions. [2018-01-30 01:03:51,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-01-30 01:03:51,874 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:51,874 INFO L350 BasicCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 18, 14, 13, 13, 13, 13, 13, 13, 13, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:51,874 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr0AssertViolation]=== [2018-01-30 01:03:51,874 INFO L82 PathProgramCache]: Analyzing trace with hash -32347320, now seen corresponding path program 13 times [2018-01-30 01:03:51,874 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:51,874 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:51,875 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:51,875 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:51,875 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:51,888 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:52,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-01-30 01:03:52,392 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:52,392 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 01:03:52,397 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:52,442 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:52,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2102 backedges. 0 proven. 650 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-01-30 01:03:52,932 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:52,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 31 [2018-01-30 01:03:52,932 INFO L409 AbstractCegarLoop]: Interpolant automaton has 31 states [2018-01-30 01:03:52,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2018-01-30 01:03:52,933 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2018-01-30 01:03:52,933 INFO L87 Difference]: Start difference. First operand 245 states and 249 transitions. Second operand 31 states. [2018-01-30 01:03:53,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:53,470 INFO L93 Difference]: Finished difference Result 385 states and 393 transitions. [2018-01-30 01:03:53,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-01-30 01:03:53,470 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 360 [2018-01-30 01:03:53,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:53,471 INFO L225 Difference]: With dead ends: 385 [2018-01-30 01:03:53,471 INFO L226 Difference]: Without dead ends: 258 [2018-01-30 01:03:53,471 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1012, Invalid=2180, Unknown=0, NotChecked=0, Total=3192 [2018-01-30 01:03:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2018-01-30 01:03:53,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 253. [2018-01-30 01:03:53,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2018-01-30 01:03:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 257 transitions. [2018-01-30 01:03:53,475 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 257 transitions. Word has length 360 [2018-01-30 01:03:53,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:53,475 INFO L432 AbstractCegarLoop]: Abstraction has 253 states and 257 transitions. [2018-01-30 01:03:53,475 INFO L433 AbstractCegarLoop]: Interpolant automaton has 31 states. [2018-01-30 01:03:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 257 transitions. [2018-01-30 01:03:53,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-01-30 01:03:53,476 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:53,477 INFO L350 BasicCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 18, 15, 14, 14, 14, 14, 14, 14, 14, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:53,477 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr0AssertViolation]=== [2018-01-30 01:03:53,477 INFO L82 PathProgramCache]: Analyzing trace with hash 716543153, now seen corresponding path program 14 times [2018-01-30 01:03:53,477 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:53,477 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:53,477 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:53,477 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:03:53,477 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:53,489 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-01-30 01:03:54,084 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:54,084 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:03:54,088 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:03:54,100 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:54,121 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:54,126 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:54,129 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:54,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-01-30 01:03:54,238 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:54,238 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 33 [2018-01-30 01:03:54,239 INFO L409 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-01-30 01:03:54,239 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-01-30 01:03:54,239 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2018-01-30 01:03:54,239 INFO L87 Difference]: Start difference. First operand 253 states and 257 transitions. Second operand 33 states. [2018-01-30 01:03:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:54,533 INFO L93 Difference]: Finished difference Result 393 states and 401 transitions. [2018-01-30 01:03:54,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-01-30 01:03:54,533 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 368 [2018-01-30 01:03:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:54,534 INFO L225 Difference]: With dead ends: 393 [2018-01-30 01:03:54,534 INFO L226 Difference]: Without dead ends: 266 [2018-01-30 01:03:54,535 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1159, Invalid=2501, Unknown=0, NotChecked=0, Total=3660 [2018-01-30 01:03:54,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-01-30 01:03:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2018-01-30 01:03:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2018-01-30 01:03:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 265 transitions. [2018-01-30 01:03:54,538 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 265 transitions. Word has length 368 [2018-01-30 01:03:54,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:54,538 INFO L432 AbstractCegarLoop]: Abstraction has 261 states and 265 transitions. [2018-01-30 01:03:54,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-01-30 01:03:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 265 transitions. [2018-01-30 01:03:54,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2018-01-30 01:03:54,540 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:54,540 INFO L350 BasicCegarLoop]: trace histogram [21, 18, 18, 18, 18, 18, 18, 18, 16, 15, 15, 15, 15, 15, 15, 15, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:54,540 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr0AssertViolation]=== [2018-01-30 01:03:54,540 INFO L82 PathProgramCache]: Analyzing trace with hash -902740710, now seen corresponding path program 15 times [2018-01-30 01:03:54,540 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:54,540 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:54,540 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:54,541 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:54,541 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:54,552 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:55,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2322 backedges. 0 proven. 870 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2018-01-30 01:03:55,422 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:55,423 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:03:55,428 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:03:55,440 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,458 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,472 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,479 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,488 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,543 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,617 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:03:55,619 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:55,622 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2322 backedges. 634 proven. 132 refuted. 0 times theorem prover too weak. 1556 trivial. 0 not checked. [2018-01-30 01:03:55,835 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:55,835 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 15] total 46 [2018-01-30 01:03:55,836 INFO L409 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-01-30 01:03:55,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-01-30 01:03:55,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=1720, Unknown=0, NotChecked=0, Total=2070 [2018-01-30 01:03:55,836 INFO L87 Difference]: Start difference. First operand 261 states and 265 transitions. Second operand 46 states. [2018-01-30 01:03:56,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:56,468 INFO L93 Difference]: Finished difference Result 414 states and 426 transitions. [2018-01-30 01:03:56,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2018-01-30 01:03:56,470 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 376 [2018-01-30 01:03:56,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:56,470 INFO L225 Difference]: With dead ends: 414 [2018-01-30 01:03:56,471 INFO L226 Difference]: Without dead ends: 287 [2018-01-30 01:03:56,477 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1478 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1520, Invalid=6136, Unknown=0, NotChecked=0, Total=7656 [2018-01-30 01:03:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-01-30 01:03:56,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 277. [2018-01-30 01:03:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2018-01-30 01:03:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 281 transitions. [2018-01-30 01:03:56,480 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 281 transitions. Word has length 376 [2018-01-30 01:03:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:56,481 INFO L432 AbstractCegarLoop]: Abstraction has 277 states and 281 transitions. [2018-01-30 01:03:56,481 INFO L433 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-01-30 01:03:56,481 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 281 transitions. [2018-01-30 01:03:56,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2018-01-30 01:03:56,482 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:56,482 INFO L350 BasicCegarLoop]: trace histogram [24, 21, 21, 21, 21, 21, 21, 21, 17, 16, 16, 16, 16, 16, 16, 16, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:56,482 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr0AssertViolation]=== [2018-01-30 01:03:56,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1876280076, now seen corresponding path program 16 times [2018-01-30 01:03:56,489 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:56,489 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:56,489 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:56,489 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:56,489 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:56,513 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2918 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2018-01-30 01:03:57,255 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:57,255 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:03:57,260 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:03:57,375 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:57,379 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:57,516 INFO L134 CoverageAnalysis]: Checked inductivity of 2918 backedges. 0 proven. 992 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2018-01-30 01:03:57,533 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:57,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 37 [2018-01-30 01:03:57,534 INFO L409 AbstractCegarLoop]: Interpolant automaton has 37 states [2018-01-30 01:03:57,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2018-01-30 01:03:57,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=972, Unknown=0, NotChecked=0, Total=1332 [2018-01-30 01:03:57,534 INFO L87 Difference]: Start difference. First operand 277 states and 281 transitions. Second operand 37 states. [2018-01-30 01:03:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:03:58,046 INFO L93 Difference]: Finished difference Result 425 states and 433 transitions. [2018-01-30 01:03:58,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-01-30 01:03:58,052 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 408 [2018-01-30 01:03:58,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:03:58,053 INFO L225 Difference]: With dead ends: 425 [2018-01-30 01:03:58,053 INFO L226 Difference]: Without dead ends: 290 [2018-01-30 01:03:58,054 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1483, Invalid=3209, Unknown=0, NotChecked=0, Total=4692 [2018-01-30 01:03:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2018-01-30 01:03:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 285. [2018-01-30 01:03:58,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-01-30 01:03:58,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 289 transitions. [2018-01-30 01:03:58,057 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 289 transitions. Word has length 408 [2018-01-30 01:03:58,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:03:58,058 INFO L432 AbstractCegarLoop]: Abstraction has 285 states and 289 transitions. [2018-01-30 01:03:58,058 INFO L433 AbstractCegarLoop]: Interpolant automaton has 37 states. [2018-01-30 01:03:58,058 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 289 transitions. [2018-01-30 01:03:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-01-30 01:03:58,065 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:03:58,065 INFO L350 BasicCegarLoop]: trace histogram [24, 21, 21, 21, 21, 21, 21, 21, 18, 17, 17, 17, 17, 17, 17, 17, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:03:58,065 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr0AssertViolation]=== [2018-01-30 01:03:58,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2087512459, now seen corresponding path program 17 times [2018-01-30 01:03:58,066 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:03:58,066 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:03:58,066 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:58,066 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:03:58,066 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:03:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:03:58,091 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:03:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 0 proven. 1122 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2018-01-30 01:03:58,690 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:03:58,690 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:03:58,698 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:03:58,709 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,723 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,733 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,740 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,749 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,754 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,756 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,759 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,766 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,772 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,780 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,790 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,809 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,883 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:58,939 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:59,302 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:03:59,304 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:03:59,307 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:03:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3048 backedges. 854 proven. 182 refuted. 0 times theorem prover too weak. 2012 trivial. 0 not checked. [2018-01-30 01:03:59,744 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:03:59,744 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 17] total 52 [2018-01-30 01:03:59,744 INFO L409 AbstractCegarLoop]: Interpolant automaton has 52 states [2018-01-30 01:03:59,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2018-01-30 01:03:59,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=439, Invalid=2213, Unknown=0, NotChecked=0, Total=2652 [2018-01-30 01:03:59,745 INFO L87 Difference]: Start difference. First operand 285 states and 289 transitions. Second operand 52 states. [2018-01-30 01:04:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:00,535 INFO L93 Difference]: Finished difference Result 446 states and 458 transitions. [2018-01-30 01:04:00,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2018-01-30 01:04:00,536 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 416 [2018-01-30 01:04:00,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:00,537 INFO L225 Difference]: With dead ends: 446 [2018-01-30 01:04:00,537 INFO L226 Difference]: Without dead ends: 311 [2018-01-30 01:04:00,539 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1937 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1935, Invalid=7965, Unknown=0, NotChecked=0, Total=9900 [2018-01-30 01:04:00,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2018-01-30 01:04:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 301. [2018-01-30 01:04:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2018-01-30 01:04:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 305 transitions. [2018-01-30 01:04:00,543 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 305 transitions. Word has length 416 [2018-01-30 01:04:00,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:00,543 INFO L432 AbstractCegarLoop]: Abstraction has 301 states and 305 transitions. [2018-01-30 01:04:00,543 INFO L433 AbstractCegarLoop]: Interpolant automaton has 52 states. [2018-01-30 01:04:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 305 transitions. [2018-01-30 01:04:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2018-01-30 01:04:00,544 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:00,545 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 19, 18, 18, 18, 18, 18, 18, 18, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:00,545 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr0AssertViolation]=== [2018-01-30 01:04:00,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1829366169, now seen corresponding path program 18 times [2018-01-30 01:04:00,545 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:00,545 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:00,545 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:00,545 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:00,549 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:00,562 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:01,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 0 proven. 1260 refuted. 0 times theorem prover too weak. 2472 trivial. 0 not checked. [2018-01-30 01:04:01,325 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:01,325 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:01,330 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:04:01,345 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,347 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,350 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,352 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,358 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,377 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,397 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,436 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,527 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,640 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,696 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,707 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,836 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:01,838 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:01,842 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3732 backedges. 1108 proven. 90 refuted. 0 times theorem prover too weak. 2534 trivial. 0 not checked. [2018-01-30 01:04:02,124 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:02,124 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 13] total 50 [2018-01-30 01:04:02,125 INFO L409 AbstractCegarLoop]: Interpolant automaton has 50 states [2018-01-30 01:04:02,125 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2018-01-30 01:04:02,125 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=446, Invalid=2004, Unknown=0, NotChecked=0, Total=2450 [2018-01-30 01:04:02,125 INFO L87 Difference]: Start difference. First operand 301 states and 305 transitions. Second operand 50 states. [2018-01-30 01:04:02,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:02,872 INFO L93 Difference]: Finished difference Result 470 states and 479 transitions. [2018-01-30 01:04:02,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-01-30 01:04:02,874 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 448 [2018-01-30 01:04:02,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:02,875 INFO L225 Difference]: With dead ends: 470 [2018-01-30 01:04:02,875 INFO L226 Difference]: Without dead ends: 327 [2018-01-30 01:04:02,876 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1746 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1980, Invalid=7140, Unknown=0, NotChecked=0, Total=9120 [2018-01-30 01:04:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2018-01-30 01:04:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 317. [2018-01-30 01:04:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-01-30 01:04:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 321 transitions. [2018-01-30 01:04:02,879 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 321 transitions. Word has length 448 [2018-01-30 01:04:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:02,882 INFO L432 AbstractCegarLoop]: Abstraction has 317 states and 321 transitions. [2018-01-30 01:04:02,882 INFO L433 AbstractCegarLoop]: Interpolant automaton has 50 states. [2018-01-30 01:04:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 321 transitions. [2018-01-30 01:04:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2018-01-30 01:04:02,884 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:02,884 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 20, 19, 19, 19, 19, 19, 19, 19, 7, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:02,884 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr0AssertViolation]=== [2018-01-30 01:04:02,884 INFO L82 PathProgramCache]: Analyzing trace with hash 8692295, now seen corresponding path program 19 times [2018-01-30 01:04:02,884 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:02,884 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:02,885 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:02,885 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:02,885 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:02,898 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2018-01-30 01:04:03,651 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:03,651 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:03,656 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:04:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:03,709 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3920 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2018-01-30 01:04:04,110 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:04,111 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 43 [2018-01-30 01:04:04,111 INFO L409 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-01-30 01:04:04,111 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-01-30 01:04:04,111 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2018-01-30 01:04:04,111 INFO L87 Difference]: Start difference. First operand 317 states and 321 transitions. Second operand 43 states. [2018-01-30 01:04:04,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:04,654 INFO L93 Difference]: Finished difference Result 481 states and 489 transitions. [2018-01-30 01:04:04,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-01-30 01:04:04,655 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 464 [2018-01-30 01:04:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:04,656 INFO L225 Difference]: With dead ends: 481 [2018-01-30 01:04:04,656 INFO L226 Difference]: Without dead ends: 330 [2018-01-30 01:04:04,657 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2044, Invalid=4436, Unknown=0, NotChecked=0, Total=6480 [2018-01-30 01:04:04,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-01-30 01:04:04,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 325. [2018-01-30 01:04:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-01-30 01:04:04,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 329 transitions. [2018-01-30 01:04:04,661 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 329 transitions. Word has length 464 [2018-01-30 01:04:04,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:04,661 INFO L432 AbstractCegarLoop]: Abstraction has 325 states and 329 transitions. [2018-01-30 01:04:04,661 INFO L433 AbstractCegarLoop]: Interpolant automaton has 43 states. [2018-01-30 01:04:04,662 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 329 transitions. [2018-01-30 01:04:04,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2018-01-30 01:04:04,663 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:04,663 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 21, 20, 20, 20, 20, 20, 20, 20, 7, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:04,664 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr0AssertViolation]=== [2018-01-30 01:04:04,664 INFO L82 PathProgramCache]: Analyzing trace with hash 568633008, now seen corresponding path program 20 times [2018-01-30 01:04:04,664 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:04,664 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:04,664 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:04,664 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:04:04,664 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:04,677 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:05,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4074 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2018-01-30 01:04:05,572 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:05,572 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:05,577 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:04:05,590 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:05,617 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:05,623 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:05,626 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4074 backedges. 0 proven. 1560 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2018-01-30 01:04:05,804 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:05,804 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 45 [2018-01-30 01:04:05,804 INFO L409 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-01-30 01:04:05,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-01-30 01:04:05,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=1452, Unknown=0, NotChecked=0, Total=1980 [2018-01-30 01:04:05,805 INFO L87 Difference]: Start difference. First operand 325 states and 329 transitions. Second operand 45 states. [2018-01-30 01:04:06,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:06,321 INFO L93 Difference]: Finished difference Result 489 states and 497 transitions. [2018-01-30 01:04:06,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2018-01-30 01:04:06,322 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 472 [2018-01-30 01:04:06,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:06,322 INFO L225 Difference]: With dead ends: 489 [2018-01-30 01:04:06,322 INFO L226 Difference]: Without dead ends: 338 [2018-01-30 01:04:06,323 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1348 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2251, Invalid=4889, Unknown=0, NotChecked=0, Total=7140 [2018-01-30 01:04:06,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-01-30 01:04:06,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 333. [2018-01-30 01:04:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-01-30 01:04:06,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 337 transitions. [2018-01-30 01:04:06,333 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 337 transitions. Word has length 472 [2018-01-30 01:04:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:06,334 INFO L432 AbstractCegarLoop]: Abstraction has 333 states and 337 transitions. [2018-01-30 01:04:06,334 INFO L433 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-01-30 01:04:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 337 transitions. [2018-01-30 01:04:06,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2018-01-30 01:04:06,335 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:06,336 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 22, 21, 21, 21, 21, 21, 21, 21, 7, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:06,336 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr0AssertViolation]=== [2018-01-30 01:04:06,336 INFO L82 PathProgramCache]: Analyzing trace with hash -988663271, now seen corresponding path program 21 times [2018-01-30 01:04:06,336 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:06,336 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:06,336 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:06,336 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:06,336 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:06,350 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4236 backedges. 0 proven. 1722 refuted. 0 times theorem prover too weak. 2514 trivial. 0 not checked. [2018-01-30 01:04:07,245 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:07,245 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:07,251 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:04:07,265 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,268 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,274 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,281 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,292 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,313 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,338 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,371 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:07,373 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:07,376 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4236 backedges. 1108 proven. 132 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2018-01-30 01:04:07,792 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:07,792 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 15] total 58 [2018-01-30 01:04:07,793 INFO L409 AbstractCegarLoop]: Interpolant automaton has 58 states [2018-01-30 01:04:07,793 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2018-01-30 01:04:07,793 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=2716, Unknown=0, NotChecked=0, Total=3306 [2018-01-30 01:04:07,793 INFO L87 Difference]: Start difference. First operand 333 states and 337 transitions. Second operand 58 states. [2018-01-30 01:04:09,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:09,058 INFO L93 Difference]: Finished difference Result 510 states and 519 transitions. [2018-01-30 01:04:09,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-01-30 01:04:09,058 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 480 [2018-01-30 01:04:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:09,059 INFO L225 Difference]: With dead ends: 510 [2018-01-30 01:04:09,059 INFO L226 Difference]: Without dead ends: 359 [2018-01-30 01:04:09,060 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2414 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2660, Invalid=9772, Unknown=0, NotChecked=0, Total=12432 [2018-01-30 01:04:09,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2018-01-30 01:04:09,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 349. [2018-01-30 01:04:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-01-30 01:04:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 353 transitions. [2018-01-30 01:04:09,064 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 353 transitions. Word has length 480 [2018-01-30 01:04:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:09,064 INFO L432 AbstractCegarLoop]: Abstraction has 349 states and 353 transitions. [2018-01-30 01:04:09,064 INFO L433 AbstractCegarLoop]: Interpolant automaton has 58 states. [2018-01-30 01:04:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 353 transitions. [2018-01-30 01:04:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2018-01-30 01:04:09,066 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:09,066 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 23, 22, 22, 22, 22, 22, 22, 22, 8, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:09,066 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr0AssertViolation]=== [2018-01-30 01:04:09,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1848838137, now seen corresponding path program 22 times [2018-01-30 01:04:09,066 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:09,066 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:09,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:09,067 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:09,067 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:09,080 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4456 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2018-01-30 01:04:10,054 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:10,054 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:10,060 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:04:10,387 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:10,392 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4456 backedges. 0 proven. 1892 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2018-01-30 01:04:10,533 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:10,533 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 49 [2018-01-30 01:04:10,533 INFO L409 AbstractCegarLoop]: Interpolant automaton has 49 states [2018-01-30 01:04:10,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2018-01-30 01:04:10,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=624, Invalid=1728, Unknown=0, NotChecked=0, Total=2352 [2018-01-30 01:04:10,534 INFO L87 Difference]: Start difference. First operand 349 states and 353 transitions. Second operand 49 states. [2018-01-30 01:04:11,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:11,156 INFO L93 Difference]: Finished difference Result 521 states and 529 transitions. [2018-01-30 01:04:11,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-01-30 01:04:11,156 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 496 [2018-01-30 01:04:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:11,157 INFO L225 Difference]: With dead ends: 521 [2018-01-30 01:04:11,157 INFO L226 Difference]: Without dead ends: 362 [2018-01-30 01:04:11,158 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2695, Invalid=5861, Unknown=0, NotChecked=0, Total=8556 [2018-01-30 01:04:11,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2018-01-30 01:04:11,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 357. [2018-01-30 01:04:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 357 states. [2018-01-30 01:04:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 361 transitions. [2018-01-30 01:04:11,162 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 361 transitions. Word has length 496 [2018-01-30 01:04:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:11,162 INFO L432 AbstractCegarLoop]: Abstraction has 357 states and 361 transitions. [2018-01-30 01:04:11,162 INFO L433 AbstractCegarLoop]: Interpolant automaton has 49 states. [2018-01-30 01:04:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 361 transitions. [2018-01-30 01:04:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2018-01-30 01:04:11,164 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:11,164 INFO L350 BasicCegarLoop]: trace histogram [27, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 8, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:11,164 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr0AssertViolation]=== [2018-01-30 01:04:11,164 INFO L82 PathProgramCache]: Analyzing trace with hash 201271394, now seen corresponding path program 23 times [2018-01-30 01:04:11,164 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:11,164 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:11,165 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:11,165 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:11,165 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:11,178 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4634 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 2564 trivial. 0 not checked. [2018-01-30 01:04:12,580 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:12,580 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:12,599 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:04:12,611 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,623 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,633 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,640 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,642 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,644 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,646 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,649 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,653 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,657 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,664 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,669 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,677 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,683 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,695 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,705 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:12,734 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:13,007 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:13,137 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:13,586 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:14,150 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:15,292 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:15,295 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:15,301 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4634 backedges. 1102 proven. 240 refuted. 0 times theorem prover too weak. 3292 trivial. 0 not checked. [2018-01-30 01:04:15,640 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:15,640 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 19] total 66 [2018-01-30 01:04:15,640 INFO L409 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-01-30 01:04:15,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-01-30 01:04:15,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=722, Invalid=3568, Unknown=0, NotChecked=0, Total=4290 [2018-01-30 01:04:15,641 INFO L87 Difference]: Start difference. First operand 357 states and 361 transitions. Second operand 66 states. [2018-01-30 01:04:16,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:16,777 INFO L93 Difference]: Finished difference Result 542 states and 554 transitions. [2018-01-30 01:04:16,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-01-30 01:04:16,779 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 504 [2018-01-30 01:04:16,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:16,779 INFO L225 Difference]: With dead ends: 542 [2018-01-30 01:04:16,780 INFO L226 Difference]: Without dead ends: 383 [2018-01-30 01:04:16,781 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3280, Invalid=12976, Unknown=0, NotChecked=0, Total=16256 [2018-01-30 01:04:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-01-30 01:04:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 373. [2018-01-30 01:04:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-01-30 01:04:16,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 377 transitions. [2018-01-30 01:04:16,784 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 377 transitions. Word has length 504 [2018-01-30 01:04:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:16,784 INFO L432 AbstractCegarLoop]: Abstraction has 373 states and 377 transitions. [2018-01-30 01:04:16,784 INFO L433 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-01-30 01:04:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 377 transitions. [2018-01-30 01:04:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2018-01-30 01:04:16,786 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:16,787 INFO L350 BasicCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 27, 25, 24, 24, 24, 24, 24, 24, 24, 8, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:16,787 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr0AssertViolation]=== [2018-01-30 01:04:16,787 INFO L82 PathProgramCache]: Analyzing trace with hash -125265324, now seen corresponding path program 24 times [2018-01-30 01:04:16,787 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:16,787 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:16,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:16,787 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:16,787 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:16,801 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:18,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5438 backedges. 0 proven. 2256 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2018-01-30 01:04:18,064 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:18,064 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-01-30 01:04:18,085 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:18,100 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,113 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,125 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,136 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,146 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,161 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,180 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,222 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,353 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,391 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,456 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,476 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,527 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,706 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,744 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:18,869 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:19,226 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:19,228 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:19,233 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:19,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5438 backedges. 1388 proven. 182 refuted. 0 times theorem prover too weak. 3868 trivial. 0 not checked. [2018-01-30 01:04:19,535 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:19,535 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 17] total 66 [2018-01-30 01:04:19,536 INFO L409 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-01-30 01:04:19,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-01-30 01:04:19,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=754, Invalid=3536, Unknown=0, NotChecked=0, Total=4290 [2018-01-30 01:04:19,536 INFO L87 Difference]: Start difference. First operand 373 states and 377 transitions. Second operand 66 states. [2018-01-30 01:04:22,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:22,242 INFO L93 Difference]: Finished difference Result 566 states and 575 transitions. [2018-01-30 01:04:22,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-01-30 01:04:22,243 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 536 [2018-01-30 01:04:22,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:22,244 INFO L225 Difference]: With dead ends: 566 [2018-01-30 01:04:22,244 INFO L226 Difference]: Without dead ends: 399 [2018-01-30 01:04:22,245 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3190 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3440, Invalid=12816, Unknown=0, NotChecked=0, Total=16256 [2018-01-30 01:04:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-01-30 01:04:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 389. [2018-01-30 01:04:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-01-30 01:04:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 393 transitions. [2018-01-30 01:04:22,249 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 393 transitions. Word has length 536 [2018-01-30 01:04:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:22,249 INFO L432 AbstractCegarLoop]: Abstraction has 389 states and 393 transitions. [2018-01-30 01:04:22,249 INFO L433 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-01-30 01:04:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 393 transitions. [2018-01-30 01:04:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2018-01-30 01:04:22,251 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:22,251 INFO L350 BasicCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 27, 26, 25, 25, 25, 25, 25, 25, 25, 9, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:22,251 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr0AssertViolation]=== [2018-01-30 01:04:22,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1439991860, now seen corresponding path program 25 times [2018-01-30 01:04:22,252 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:22,252 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:22,252 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:22,252 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:22,252 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:22,266 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:23,454 INFO L134 CoverageAnalysis]: Checked inductivity of 5690 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-01-30 01:04:23,455 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:23,455 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:23,460 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:04:23,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:23,510 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:23,617 INFO L134 CoverageAnalysis]: Checked inductivity of 5690 backedges. 0 proven. 2450 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-01-30 01:04:23,634 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:23,634 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 55 [2018-01-30 01:04:23,635 INFO L409 AbstractCegarLoop]: Interpolant automaton has 55 states [2018-01-30 01:04:23,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2018-01-30 01:04:23,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=783, Invalid=2187, Unknown=0, NotChecked=0, Total=2970 [2018-01-30 01:04:23,635 INFO L87 Difference]: Start difference. First operand 389 states and 393 transitions. Second operand 55 states. [2018-01-30 01:04:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:24,451 INFO L93 Difference]: Finished difference Result 577 states and 585 transitions. [2018-01-30 01:04:24,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2018-01-30 01:04:24,451 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 552 [2018-01-30 01:04:24,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:24,452 INFO L225 Difference]: With dead ends: 577 [2018-01-30 01:04:24,452 INFO L226 Difference]: Without dead ends: 402 [2018-01-30 01:04:24,453 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2063 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=3436, Invalid=7484, Unknown=0, NotChecked=0, Total=10920 [2018-01-30 01:04:24,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2018-01-30 01:04:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 397. [2018-01-30 01:04:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2018-01-30 01:04:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 401 transitions. [2018-01-30 01:04:24,457 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 401 transitions. Word has length 552 [2018-01-30 01:04:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:24,457 INFO L432 AbstractCegarLoop]: Abstraction has 397 states and 401 transitions. [2018-01-30 01:04:24,457 INFO L433 AbstractCegarLoop]: Interpolant automaton has 55 states. [2018-01-30 01:04:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 401 transitions. [2018-01-30 01:04:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-01-30 01:04:24,460 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:24,460 INFO L350 BasicCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 9, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:24,460 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr0AssertViolation]=== [2018-01-30 01:04:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash 175659421, now seen corresponding path program 26 times [2018-01-30 01:04:24,461 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:24,461 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:24,461 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:24,461 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:04:24,461 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:24,475 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5892 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-01-30 01:04:25,746 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:25,746 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:25,753 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:04:25,767 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:25,801 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:25,810 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:25,814 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5892 backedges. 0 proven. 2652 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-01-30 01:04:25,942 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:25,942 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 57 [2018-01-30 01:04:25,943 INFO L409 AbstractCegarLoop]: Interpolant automaton has 57 states [2018-01-30 01:04:25,943 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2018-01-30 01:04:25,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=840, Invalid=2352, Unknown=0, NotChecked=0, Total=3192 [2018-01-30 01:04:25,944 INFO L87 Difference]: Start difference. First operand 397 states and 401 transitions. Second operand 57 states. [2018-01-30 01:04:26,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:26,752 INFO L93 Difference]: Finished difference Result 585 states and 593 transitions. [2018-01-30 01:04:26,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2018-01-30 01:04:26,753 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 560 [2018-01-30 01:04:26,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:26,753 INFO L225 Difference]: With dead ends: 585 [2018-01-30 01:04:26,754 INFO L226 Difference]: Without dead ends: 410 [2018-01-30 01:04:26,754 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2224 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=3703, Invalid=8069, Unknown=0, NotChecked=0, Total=11772 [2018-01-30 01:04:26,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2018-01-30 01:04:26,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 405. [2018-01-30 01:04:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2018-01-30 01:04:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 409 transitions. [2018-01-30 01:04:26,758 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 409 transitions. Word has length 560 [2018-01-30 01:04:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:26,758 INFO L432 AbstractCegarLoop]: Abstraction has 405 states and 409 transitions. [2018-01-30 01:04:26,758 INFO L433 AbstractCegarLoop]: Interpolant automaton has 57 states. [2018-01-30 01:04:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 409 transitions. [2018-01-30 01:04:26,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-01-30 01:04:26,760 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:26,760 INFO L350 BasicCegarLoop]: trace histogram [30, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 9, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:26,760 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr0AssertViolation]=== [2018-01-30 01:04:26,761 INFO L82 PathProgramCache]: Analyzing trace with hash 449622534, now seen corresponding path program 27 times [2018-01-30 01:04:26,761 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:26,761 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:26,761 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:26,761 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:26,761 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:26,775 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:28,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 0 proven. 2862 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2018-01-30 01:04:28,076 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:28,076 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:28,082 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-01-30 01:04:28,096 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,100 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,105 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,116 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,129 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,160 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,178 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,204 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,228 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,325 INFO L254 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued a check-sat command [2018-01-30 01:04:28,327 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:28,331 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6102 backedges. 1388 proven. 240 refuted. 0 times theorem prover too weak. 4474 trivial. 0 not checked. [2018-01-30 01:04:28,697 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:28,698 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 19] total 74 [2018-01-30 01:04:28,698 INFO L409 AbstractCegarLoop]: Interpolant automaton has 74 states [2018-01-30 01:04:28,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2018-01-30 01:04:28,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=938, Invalid=4464, Unknown=0, NotChecked=0, Total=5402 [2018-01-30 01:04:28,699 INFO L87 Difference]: Start difference. First operand 405 states and 409 transitions. Second operand 74 states. [2018-01-30 01:04:30,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:30,334 INFO L93 Difference]: Finished difference Result 606 states and 615 transitions. [2018-01-30 01:04:30,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2018-01-30 01:04:30,336 INFO L78 Accepts]: Start accepts. Automaton has 74 states. Word has length 568 [2018-01-30 01:04:30,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:30,337 INFO L225 Difference]: With dead ends: 606 [2018-01-30 01:04:30,337 INFO L226 Difference]: Without dead ends: 431 [2018-01-30 01:04:30,338 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4074 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4320, Invalid=16272, Unknown=0, NotChecked=0, Total=20592 [2018-01-30 01:04:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2018-01-30 01:04:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 421. [2018-01-30 01:04:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2018-01-30 01:04:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 425 transitions. [2018-01-30 01:04:30,352 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 425 transitions. Word has length 568 [2018-01-30 01:04:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:30,352 INFO L432 AbstractCegarLoop]: Abstraction has 421 states and 425 transitions. [2018-01-30 01:04:30,352 INFO L433 AbstractCegarLoop]: Interpolant automaton has 74 states. [2018-01-30 01:04:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 425 transitions. [2018-01-30 01:04:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2018-01-30 01:04:30,354 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:30,354 INFO L350 BasicCegarLoop]: trace histogram [30, 29, 28, 28, 28, 28, 28, 28, 28, 27, 27, 27, 27, 27, 27, 27, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:30,354 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr0AssertViolation]=== [2018-01-30 01:04:30,355 INFO L82 PathProgramCache]: Analyzing trace with hash 997911014, now seen corresponding path program 28 times [2018-01-30 01:04:30,355 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:30,355 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:30,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:30,355 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:30,355 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:30,387 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6386 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2018-01-30 01:04:31,787 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:31,787 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:31,791 INFO L101 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-01-30 01:04:32,334 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:32,340 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 6386 backedges. 0 proven. 3080 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2018-01-30 01:04:32,479 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:32,479 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 61 [2018-01-30 01:04:32,479 INFO L409 AbstractCegarLoop]: Interpolant automaton has 61 states [2018-01-30 01:04:32,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2018-01-30 01:04:32,480 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=960, Invalid=2700, Unknown=0, NotChecked=0, Total=3660 [2018-01-30 01:04:32,480 INFO L87 Difference]: Start difference. First operand 421 states and 425 transitions. Second operand 61 states. [2018-01-30 01:04:33,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:33,485 INFO L93 Difference]: Finished difference Result 617 states and 625 transitions. [2018-01-30 01:04:33,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2018-01-30 01:04:33,485 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 584 [2018-01-30 01:04:33,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:33,486 INFO L225 Difference]: With dead ends: 617 [2018-01-30 01:04:33,486 INFO L226 Difference]: Without dead ends: 434 [2018-01-30 01:04:33,487 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2564 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=4267, Invalid=9305, Unknown=0, NotChecked=0, Total=13572 [2018-01-30 01:04:33,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-01-30 01:04:33,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 429. [2018-01-30 01:04:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2018-01-30 01:04:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 433 transitions. [2018-01-30 01:04:33,490 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 433 transitions. Word has length 584 [2018-01-30 01:04:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:33,491 INFO L432 AbstractCegarLoop]: Abstraction has 429 states and 433 transitions. [2018-01-30 01:04:33,491 INFO L433 AbstractCegarLoop]: Interpolant automaton has 61 states. [2018-01-30 01:04:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 433 transitions. [2018-01-30 01:04:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2018-01-30 01:04:33,493 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:33,493 INFO L350 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 29, 27, 27, 27, 27, 27, 27, 27, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:33,493 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr0AssertViolation]=== [2018-01-30 01:04:33,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1645664079, now seen corresponding path program 29 times [2018-01-30 01:04:33,493 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:33,493 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:33,494 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:33,494 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:33,494 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:33,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:33,509 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 3306 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2018-01-30 01:04:34,969 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:34,969 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:34,973 INFO L101 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-01-30 01:04:34,986 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:34,993 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:34,994 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:34,996 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:34,998 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,000 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,003 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,005 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,008 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,011 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,014 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,020 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,027 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,043 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,051 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,060 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,081 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,103 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,127 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,139 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,180 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,576 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:35,827 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:36,057 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:36,689 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:38,497 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:41,698 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:43,273 INFO L278 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:04:43,276 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:43,284 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 1382 proven. 306 refuted. 0 times theorem prover too weak. 4924 trivial. 0 not checked. [2018-01-30 01:04:43,724 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:04:43,724 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 21] total 80 [2018-01-30 01:04:43,724 INFO L409 AbstractCegarLoop]: Interpolant automaton has 80 states [2018-01-30 01:04:43,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2018-01-30 01:04:43,725 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1079, Invalid=5241, Unknown=0, NotChecked=0, Total=6320 [2018-01-30 01:04:43,725 INFO L87 Difference]: Start difference. First operand 429 states and 433 transitions. Second operand 80 states. [2018-01-30 01:04:45,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:04:45,365 INFO L93 Difference]: Finished difference Result 638 states and 650 transitions. [2018-01-30 01:04:45,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2018-01-30 01:04:45,366 INFO L78 Accepts]: Start accepts. Automaton has 80 states. Word has length 592 [2018-01-30 01:04:45,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:04:45,367 INFO L225 Difference]: With dead ends: 638 [2018-01-30 01:04:45,367 INFO L226 Difference]: Without dead ends: 455 [2018-01-30 01:04:45,368 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4817 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=4995, Invalid=19185, Unknown=0, NotChecked=0, Total=24180 [2018-01-30 01:04:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2018-01-30 01:04:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 445. [2018-01-30 01:04:45,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2018-01-30 01:04:45,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 449 transitions. [2018-01-30 01:04:45,372 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 449 transitions. Word has length 592 [2018-01-30 01:04:45,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:04:45,372 INFO L432 AbstractCegarLoop]: Abstraction has 445 states and 449 transitions. [2018-01-30 01:04:45,372 INFO L433 AbstractCegarLoop]: Interpolant automaton has 80 states. [2018-01-30 01:04:45,372 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 449 transitions. [2018-01-30 01:04:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-01-30 01:04:45,375 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:04:45,375 INFO L350 BasicCegarLoop]: trace histogram [33, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:04:45,375 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr0AssertViolation]=== [2018-01-30 01:04:45,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1308837055, now seen corresponding path program 30 times [2018-01-30 01:04:45,375 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:04:45,375 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:04:45,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:45,376 INFO L99 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-01-30 01:04:45,376 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:04:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:04:45,392 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:04:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 7536 backedges. 0 proven. 3540 refuted. 0 times theorem prover too weak. 3996 trivial. 0 not checked. [2018-01-30 01:04:47,012 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:04:47,012 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:04:47,017 INFO L101 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-01-30 01:04:47,033 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,034 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,038 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,040 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,045 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,062 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,073 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,184 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,235 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,295 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,390 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,579 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,730 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:47,928 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:48,631 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command Received shutdown request... [2018-01-30 01:04:49,134 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:49,501 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:49,640 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:50,407 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:52,035 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:53,403 INFO L310 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued a check-sat command [2018-01-30 01:04:53,407 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:04:53,417 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:04:53,422 INFO L175 TraceCheckSpWp]: Timeout while computing interpolants [2018-01-30 01:04:53,422 WARN L491 AbstractCegarLoop]: Verification canceled [2018-01-30 01:04:53,424 WARN L185 ceAbstractionStarter]: Timeout [2018-01-30 01:04:53,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:04:53 BoogieIcfgContainer [2018-01-30 01:04:53,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 01:04:53,425 INFO L168 Benchmark]: Toolchain (without parser) took 74250.99 ms. Allocated memory was 148.4 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 113.4 MB in the beginning and 341.4 MB in the end (delta: -228.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 5.3 GB. [2018-01-30 01:04:53,426 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 148.4 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:04:53,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 108.10 ms. Allocated memory is still 148.4 MB. Free memory was 113.2 MB in the beginning and 104.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 5.3 GB. [2018-01-30 01:04:53,426 INFO L168 Benchmark]: Boogie Preprocessor took 18.82 ms. Allocated memory is still 148.4 MB. Free memory was 104.6 MB in the beginning and 103.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 5.3 GB. [2018-01-30 01:04:53,426 INFO L168 Benchmark]: RCFGBuilder took 370.96 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 84.6 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 5.3 GB. [2018-01-30 01:04:53,426 INFO L168 Benchmark]: TraceAbstraction took 73750.97 ms. Allocated memory was 148.4 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 84.3 MB in the beginning and 341.4 MB in the end (delta: -257.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-01-30 01:04:53,427 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 148.4 MB. Free memory is still 118.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 108.10 ms. Allocated memory is still 148.4 MB. Free memory was 113.2 MB in the beginning and 104.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 18.82 ms. Allocated memory is still 148.4 MB. Free memory was 104.6 MB in the beginning and 103.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 370.96 ms. Allocated memory is still 148.4 MB. Free memory was 102.7 MB in the beginning and 84.6 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 73750.97 ms. Allocated memory was 148.4 MB in the beginning and 1.7 GB in the end (delta: 1.6 GB). Free memory was 84.3 MB in the beginning and 341.4 MB in the end (delta: -257.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 39]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 39). Cancelled while BasicCegarLoop was analyzing trace of length 625 with TraceHistMax 33, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 63 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 78 locations, 1 error locations. TIMEOUT Result, 73.7s OverallTime, 34 OverallIterations, 33 TraceHistogramMax, 20.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2281 SDtfs, 3012 SDslu, 51654 SDs, 0 SdLazy, 6966 SolverSat, 742 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13291 GetRequests, 11150 SyntacticMatches, 0 SemanticMatches, 2141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39787 ImplicationChecksByTransitivity, 30.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=445occurred in iteration=33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 33 MinimizatonAttempts, 245 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 16.1s SatisfiabilityAnalysisTime, 25.9s InterpolantComputationTime, 22779 NumberOfCodeBlocks, 21612 NumberOfCodeBlocksAsserted, 222 NumberOfCheckSat, 22715 ConstructedInterpolants, 0 QuantifiedInterpolants, 15004375 SizeOfPredicates, 619 NumberOfNonLiveVariables, 15793 ConjunctsInSsa, 650 ConjunctsInUnsatCore, 64 InterpolantComputations, 4 PerfectInterpolantSequences, 118557/170133 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum60_true-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_01-04-53-431.csv Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/sum60_true-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_01-04-53-431.csv Completed graceful shutdown