java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-bd42740 [2018-09-23 21:31:12,857 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-23 21:31:12,859 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-23 21:31:12,870 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-23 21:31:12,871 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-23 21:31:12,872 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-23 21:31:12,873 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-23 21:31:12,875 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-23 21:31:12,876 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-23 21:31:12,877 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-23 21:31:12,878 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-23 21:31:12,878 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-23 21:31:12,879 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-23 21:31:12,880 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-23 21:31:12,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-23 21:31:12,882 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-23 21:31:12,883 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-23 21:31:12,884 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-23 21:31:12,886 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-23 21:31:12,888 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-23 21:31:12,889 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-23 21:31:12,890 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-23 21:31:12,894 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-23 21:31:12,911 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-23 21:31:12,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-23 21:31:12,940 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-23 21:31:12,941 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-23 21:31:12,941 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-23 21:31:12,941 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-23 21:31:12,942 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-23 21:31:12,942 INFO L133 SettingsManager]: * Use SBE=true [2018-09-23 21:31:12,942 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-23 21:31:12,942 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-23 21:31:12,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-23 21:31:12,943 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-23 21:31:12,943 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-23 21:31:12,943 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-23 21:31:12,943 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-23 21:31:12,944 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-23 21:31:12,944 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-23 21:31:12,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-23 21:31:12,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-23 21:31:12,944 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-23 21:31:12,945 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-23 21:31:12,945 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-23 21:31:12,945 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-23 21:31:12,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:31:12,945 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-23 21:31:12,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-23 21:31:12,946 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-23 21:31:12,946 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-23 21:31:12,946 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-23 21:31:12,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-23 21:31:12,947 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-23 21:31:12,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-23 21:31:13,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-23 21:31:13,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-23 21:31:13,012 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-23 21:31:13,012 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-23 21:31:13,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-23 21:31:13,014 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl' [2018-09-23 21:31:13,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-23 21:31:13,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-23 21:31:13,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-23 21:31:13,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-23 21:31:13,107 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-23 21:31:13,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-23 21:31:13,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-23 21:31:13,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-23 21:31:13,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-23 21:31:13,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... [2018-09-23 21:31:13,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-23 21:31:13,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-23 21:31:13,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-23 21:31:13,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-23 21:31:13,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-23 21:31:13,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-23 21:31:13,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-23 21:31:13,876 INFO L354 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-23 21:31:13,876 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:31:13 BoogieIcfgContainer [2018-09-23 21:31:13,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-23 21:31:13,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-23 21:31:13,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-23 21:31:13,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-23 21:31:13,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.09 09:31:13" (1/2) ... [2018-09-23 21:31:13,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae210de and model type pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.09 09:31:13, skipping insertion in model container [2018-09-23 21:31:13,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.09 09:31:13" (2/2) ... [2018-09-23 21:31:13,884 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-23 21:31:13,893 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-23 21:31:13,902 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-23 21:31:13,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-23 21:31:13,951 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-23 21:31:13,952 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-23 21:31:13,952 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-23 21:31:13,952 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-23 21:31:13,952 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-23 21:31:13,952 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-23 21:31:13,952 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-23 21:31:13,953 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-23 21:31:13,968 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-23 21:31:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 21:31:13,975 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:13,976 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:13,977 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:13,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:13,983 INFO L82 PathProgramCache]: Analyzing trace with hash 679324735, now seen corresponding path program 1 times [2018-09-23 21:31:13,985 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:13,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:14,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:14,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:14,220 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:14,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:31:14,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:14,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:14,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,238 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-23 21:31:14,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:14,306 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2018-09-23 21:31:14,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:14,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-23 21:31:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:14,320 INFO L225 Difference]: With dead ends: 48 [2018-09-23 21:31:14,320 INFO L226 Difference]: Without dead ends: 31 [2018-09-23 21:31:14,324 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-23 21:31:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-09-23 21:31:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-23 21:31:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2018-09-23 21:31:14,368 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 15 [2018-09-23 21:31:14,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:14,368 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2018-09-23 21:31:14,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:14,369 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2018-09-23 21:31:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 21:31:14,370 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:14,370 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:14,370 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:14,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:14,371 INFO L82 PathProgramCache]: Analyzing trace with hash 92518721, now seen corresponding path program 1 times [2018-09-23 21:31:14,371 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:14,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:14,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:14,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:14,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:14,503 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:14,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:31:14,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:14,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:14,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,506 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 3 states. [2018-09-23 21:31:14,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:14,548 INFO L93 Difference]: Finished difference Result 85 states and 121 transitions. [2018-09-23 21:31:14,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:14,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-23 21:31:14,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:14,552 INFO L225 Difference]: With dead ends: 85 [2018-09-23 21:31:14,552 INFO L226 Difference]: Without dead ends: 57 [2018-09-23 21:31:14,555 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-23 21:31:14,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-09-23 21:31:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-23 21:31:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2018-09-23 21:31:14,583 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 15 [2018-09-23 21:31:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:14,584 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2018-09-23 21:31:14,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2018-09-23 21:31:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 21:31:14,585 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:14,585 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:14,585 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:14,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:14,586 INFO L82 PathProgramCache]: Analyzing trace with hash 772577091, now seen corresponding path program 1 times [2018-09-23 21:31:14,586 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:14,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:14,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:14,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:14,719 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:14,719 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:31:14,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:14,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:14,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,721 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2018-09-23 21:31:14,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:14,791 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2018-09-23 21:31:14,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:14,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-23 21:31:14,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:14,795 INFO L225 Difference]: With dead ends: 139 [2018-09-23 21:31:14,795 INFO L226 Difference]: Without dead ends: 85 [2018-09-23 21:31:14,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-23 21:31:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2018-09-23 21:31:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-09-23 21:31:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2018-09-23 21:31:14,817 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 15 [2018-09-23 21:31:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:14,818 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2018-09-23 21:31:14,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:14,818 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2018-09-23 21:31:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-23 21:31:14,819 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:14,819 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:14,819 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:14,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:14,820 INFO L82 PathProgramCache]: Analyzing trace with hash 774424133, now seen corresponding path program 1 times [2018-09-23 21:31:14,820 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:14,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:14,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:14,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:14,992 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:14,993 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-23 21:31:14,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-23 21:31:14,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-23 21:31:14,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-23 21:31:14,994 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand 4 states. [2018-09-23 21:31:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:15,123 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2018-09-23 21:31:15,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-23 21:31:15,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-23 21:31:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:15,127 INFO L225 Difference]: With dead ends: 155 [2018-09-23 21:31:15,127 INFO L226 Difference]: Without dead ends: 153 [2018-09-23 21:31:15,128 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-23 21:31:15,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-09-23 21:31:15,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 91. [2018-09-23 21:31:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-09-23 21:31:15,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2018-09-23 21:31:15,182 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 15 [2018-09-23 21:31:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:15,187 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2018-09-23 21:31:15,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-23 21:31:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2018-09-23 21:31:15,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-23 21:31:15,188 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:15,189 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:15,189 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:15,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:15,190 INFO L82 PathProgramCache]: Analyzing trace with hash 263176883, now seen corresponding path program 1 times [2018-09-23 21:31:15,190 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:15,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:15,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:15,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:15,361 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:15,361 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:31:15,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:15,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:15,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:15,363 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand 3 states. [2018-09-23 21:31:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:15,450 INFO L93 Difference]: Finished difference Result 267 states and 357 transitions. [2018-09-23 21:31:15,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:15,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-23 21:31:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:15,455 INFO L225 Difference]: With dead ends: 267 [2018-09-23 21:31:15,455 INFO L226 Difference]: Without dead ends: 179 [2018-09-23 21:31:15,456 INFO L605 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 [2018-09-23 21:31:15,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-09-23 21:31:15,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2018-09-23 21:31:15,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-09-23 21:31:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2018-09-23 21:31:15,515 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 28 [2018-09-23 21:31:15,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:15,517 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2018-09-23 21:31:15,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2018-09-23 21:31:15,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-23 21:31:15,520 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:15,520 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:15,520 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:15,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:15,521 INFO L82 PathProgramCache]: Analyzing trace with hash -437887695, now seen corresponding path program 1 times [2018-09-23 21:31:15,521 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:15,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:15,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:15,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:15,662 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:15,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:15,663 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-23 21:31:15,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:15,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:15,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:15,664 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 3 states. [2018-09-23 21:31:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:15,772 INFO L93 Difference]: Finished difference Result 525 states and 690 transitions. [2018-09-23 21:31:15,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:15,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-23 21:31:15,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:15,776 INFO L225 Difference]: With dead ends: 525 [2018-09-23 21:31:15,776 INFO L226 Difference]: Without dead ends: 351 [2018-09-23 21:31:15,779 INFO L605 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 [2018-09-23 21:31:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-23 21:31:15,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-23 21:31:15,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-23 21:31:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 448 transitions. [2018-09-23 21:31:15,862 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 448 transitions. Word has length 28 [2018-09-23 21:31:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:15,863 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 448 transitions. [2018-09-23 21:31:15,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 448 transitions. [2018-09-23 21:31:15,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-23 21:31:15,866 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:15,866 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-23 21:31:15,868 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:15,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:15,868 INFO L82 PathProgramCache]: Analyzing trace with hash 2082072239, now seen corresponding path program 1 times [2018-09-23 21:31:15,869 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:15,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:15,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:15,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:16,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-23 21:31:16,225 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-23 21:31:16,225 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-23 21:31:16,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:16,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-23 21:31:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-23 21:31:16,704 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-23 21:31:16,704 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-23 21:31:16,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-23 21:31:16,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-23 21:31:16,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-23 21:31:16,705 INFO L87 Difference]: Start difference. First operand 349 states and 448 transitions. Second operand 7 states. [2018-09-23 21:31:19,001 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-23 21:31:19,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:19,294 INFO L93 Difference]: Finished difference Result 791 states and 1017 transitions. [2018-09-23 21:31:19,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-23 21:31:19,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-09-23 21:31:19,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:19,298 INFO L225 Difference]: With dead ends: 791 [2018-09-23 21:31:19,298 INFO L226 Difference]: Without dead ends: 287 [2018-09-23 21:31:19,304 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-23 21:31:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-09-23 21:31:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 266. [2018-09-23 21:31:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-09-23 21:31:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 314 transitions. [2018-09-23 21:31:19,365 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 314 transitions. Word has length 28 [2018-09-23 21:31:19,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:19,366 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 314 transitions. [2018-09-23 21:31:19,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-23 21:31:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 314 transitions. [2018-09-23 21:31:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-23 21:31:19,374 INFO L367 BasicCegarLoop]: Found error trace [2018-09-23 21:31:19,375 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-09-23 21:31:19,375 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-23 21:31:19,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-23 21:31:19,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1799101551, now seen corresponding path program 2 times [2018-09-23 21:31:19,379 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-23 21:31:19,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-23 21:31:19,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:19,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-23 21:31:19,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-23 21:31:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-23 21:31:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-09-23 21:31:19,476 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-23 21:31:19,476 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-23 21:31:19,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-23 21:31:19,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-23 21:31:19,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:19,477 INFO L87 Difference]: Start difference. First operand 266 states and 314 transitions. Second operand 3 states. [2018-09-23 21:31:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-23 21:31:19,489 INFO L93 Difference]: Finished difference Result 266 states and 314 transitions. [2018-09-23 21:31:19,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-23 21:31:19,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-09-23 21:31:19,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-23 21:31:19,490 INFO L225 Difference]: With dead ends: 266 [2018-09-23 21:31:19,490 INFO L226 Difference]: Without dead ends: 0 [2018-09-23 21:31:19,491 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-23 21:31:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-23 21:31:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-23 21:31:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-23 21:31:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-23 21:31:19,492 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-09-23 21:31:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-23 21:31:19,492 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-23 21:31:19,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-23 21:31:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-23 21:31:19,493 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-23 21:31:19,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-23 21:31:20,574 WARN L178 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-23 21:31:20,804 WARN L178 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-23 21:31:21,234 WARN L178 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-23 21:31:21,485 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-23 21:31:21,737 WARN L178 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-23 21:31:22,114 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-23 21:31:22,190 INFO L422 ceAbstractionStarter]: At program point L316(lines 308 317) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-23 21:31:22,191 INFO L422 ceAbstractionStarter]: At program point L250(lines 242 251) the Hoare annotation is: (let ((.cse5 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse7 (<= 1 ~mode2)) (.cse8 (<= ~mode2 1)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (<= ~send1 127)) (.cse4 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (= ULTIMATE.start_assert_~arg 1) (<= 1 ULTIMATE.start_check_~tmp~85) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= ~mode1 (* 256 (div ~mode1 256))) .cse7 .cse8 .cse3 .cse4) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 (= ~mode2 (* 256 (div ~mode2 256))) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse8 .cse2 .cse3 .cse4))) [2018-09-23 21:31:22,191 INFO L422 ceAbstractionStarter]: At program point L366(lines 366 370) the Hoare annotation is: false [2018-09-23 21:31:22,191 INFO L422 ceAbstractionStarter]: At program point L255(lines 255 265) the Hoare annotation is: (let ((.cse5 (<= ~r1 (* 256 (div ~r1 256)))) (.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse7 (<= 1 ~mode2)) (.cse8 (<= ~mode2 1)) (.cse2 (not (= ~p1_new ~nomsg))) (.cse3 (<= ~send1 127)) (.cse4 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 (= ULTIMATE.start_assert_~arg 1) (<= 1 ULTIMATE.start_check_~tmp~85) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= ~mode1 (* 256 (div ~mode1 256))) .cse7 .cse8 .cse3 .cse4) (and .cse1 (= ~mode3 (* 256 (div ~mode3 256))) .cse2 (= ~mode2 (* 256 (div ~mode2 256))) .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse7 .cse8 .cse2 .cse3 .cse4))) [2018-09-23 21:31:22,191 INFO L422 ceAbstractionStarter]: At program point L350(lines 345 351) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (<= 1 ~mode2) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~85) (<= ~send1 127) (= 0 (+ ~nomsg 1))) [2018-09-23 21:31:22,191 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 66 372) no Hoare annotation was computed. [2018-09-23 21:31:22,192 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 66 372) no Hoare annotation was computed. [2018-09-23 21:31:22,192 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 371) no Hoare annotation was computed. [2018-09-23 21:31:22,192 INFO L422 ceAbstractionStarter]: At program point L272(lines 264 273) the Hoare annotation is: (let ((.cse7 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1))) (.cse6 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 (exists ((v_~r1_9 Int)) (let ((.cse8 (mod v_~r1_9 256))) (and (= (+ .cse8 1) ~r1) (<= .cse8 0)))) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 (= ULTIMATE.start_assert_~arg 1) .cse1 .cse2 (<= 1 ULTIMATE.start_check_~tmp~85) .cse3 .cse4 .cse5 .cse6))) [2018-09-23 21:31:22,192 INFO L422 ceAbstractionStarter]: At program point L330(lines 330 336) the Hoare annotation is: (let ((.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4 .cse5))) [2018-09-23 21:31:22,193 INFO L422 ceAbstractionStarter]: At program point L231(lines 231 243) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= ~send1 127)) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) .cse1 .cse2 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) .cse0 (<= 1 ~mode2) (<= ~mode2 1) .cse1 .cse2))) [2018-09-23 21:31:22,193 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 66 372) no Hoare annotation was computed. [2018-09-23 21:31:22,193 INFO L422 ceAbstractionStarter]: At program point L277(lines 277 287) the Hoare annotation is: (let ((.cse7 (not (= ~p1_old ~nomsg))) (.cse0 (<= 0 ~send1)) (.cse1 (<= 1 ~mode2)) (.cse2 (<= ~mode2 1)) (.cse3 (not (= ~p1_new ~nomsg))) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1))) (.cse6 (<= ~r1 (* 256 (div ~r1 256))))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 (exists ((v_~r1_9 Int)) (let ((.cse8 (mod v_~r1_9 256))) (and (= (+ .cse8 1) ~r1) (<= .cse8 0)))) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse7 .cse0 (= ULTIMATE.start_assert_~arg 1) .cse1 .cse2 (<= 1 ULTIMATE.start_check_~tmp~85) .cse3 .cse4 .cse5 .cse6))) [2018-09-23 21:31:22,193 INFO L422 ceAbstractionStarter]: At program point L339(lines 335 346) the Hoare annotation is: (let ((.cse0 (not (= ~p1_old ~nomsg))) (.cse1 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (<= ~send1 127)) (.cse5 (= 0 (+ ~nomsg 1)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (<= ~r1 (* 256 (div ~r1 256)))) (and .cse0 .cse1 (exists ((v_~r1_9 Int)) (let ((.cse6 (mod v_~r1_9 256))) (and (= (+ .cse6 1) ~r1) (<= .cse6 0)))) .cse2 .cse3 .cse4 .cse5))) [2018-09-23 21:31:22,193 INFO L422 ceAbstractionStarter]: At program point L360(lines 360 367) the Hoare annotation is: (and (not (= ~p1_old ~nomsg)) (<= 0 ~send1) (= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode2) (<= ~mode2 1) (<= 1 ULTIMATE.start_check_~tmp~85) (<= ~send1 127) (= 0 (+ ~nomsg 1))) [2018-09-23 21:31:22,194 INFO L422 ceAbstractionStarter]: At program point L294(lines 286 295) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-23 21:31:22,194 INFO L422 ceAbstractionStarter]: At program point L369(lines 224 369) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse1 (<= ~send1 127)) (.cse2 (= 0 (+ ~nomsg 1)))) (or (and .cse0 (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= ~mode2 (* 256 (div ~mode2 256))) .cse1 .cse2 (<= ~r1 (* 256 (div ~r1 256)))) (and (not (= ~p1_old ~nomsg)) .cse0 (<= 1 ~mode2) (<= ~mode2 1) .cse1 .cse2))) [2018-09-23 21:31:22,194 INFO L422 ceAbstractionStarter]: At program point L299(lines 299 309) the Hoare annotation is: (let ((.cse0 (<= 0 ~send1)) (.cse2 (<= 1 ~mode2)) (.cse3 (<= ~mode2 1)) (.cse4 (not (= ~p1_new ~nomsg))) (.cse5 (<= ~send1 127)) (.cse6 (= 0 (+ ~nomsg 1)))) (or (and (not (= ~p1_old ~nomsg)) .cse0 (exists ((v_~r1_9 Int)) (let ((.cse1 (mod v_~r1_9 256))) (and (= (+ .cse1 1) ~r1) (<= .cse1 0)))) .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 (<= ~r1 (* 256 (div ~r1 256)))))) [2018-09-23 21:31:22,202 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,203 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,210 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,210 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,213 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,213 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,215 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,215 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,217 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,217 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,218 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,218 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,220 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,221 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,222 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,222 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,224 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,226 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,226 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,228 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,228 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,230 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,230 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,231 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,232 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,233 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,233 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,234 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,234 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,235 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,236 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,237 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,239 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,239 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,242 INFO L202 PluginConnector]: Adding new model pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.09 09:31:22 BoogieIcfgContainer [2018-09-23 21:31:22,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-23 21:31:22,243 INFO L168 Benchmark]: Toolchain (without parser) took 9139.32 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.1 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -22.4 MB). Peak memory consumption was 489.5 MB. Max. memory is 7.1 GB. [2018-09-23 21:31:22,250 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:31:22,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:31:22,251 INFO L168 Benchmark]: Boogie Preprocessor took 53.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-23 21:31:22,252 INFO L168 Benchmark]: RCFGBuilder took 670.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-23 21:31:22,253 INFO L168 Benchmark]: TraceAbstraction took 8364.47 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -54.2 MB). Peak memory consumption was 457.8 MB. Max. memory is 7.1 GB. [2018-09-23 21:31:22,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.87 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 670.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8364.47 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 34.1 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -54.2 MB). Peak memory consumption was 457.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 371]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 242]: Loop Invariant [2018-09-23 21:31:22,278 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,278 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,280 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,280 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 264]: Loop Invariant [2018-09-23 21:31:22,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,288 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,290 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,290 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 286]: Loop Invariant [2018-09-23 21:31:22,291 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,291 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,292 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,292 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 330]: Loop Invariant [2018-09-23 21:31:22,295 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,296 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,296 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,296 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 255]: Loop Invariant [2018-09-23 21:31:22,297 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,301 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,302 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && ~mode1 == 256 * (~mode1 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1)) || ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && !(~p1_new == ~nomsg)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256))) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 277]: Loop Invariant [2018-09-23 21:31:22,303 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,303 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,304 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,305 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1)) || (((((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 345]: Loop Invariant Derived loop invariant: (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && ~send1 <= 127) && 0 == ~nomsg + 1 - InvariantResult [Line: 335]: Loop Invariant [2018-09-23 21:31:22,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,308 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,311 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,312 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - InvariantResult [Line: 299]: Loop Invariant [2018-09-23 21:31:22,312 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,313 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,313 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,314 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: ((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && assert_~arg == 1) && 1 <= ~mode2) && ~mode2 <= 1) && 1 <= check_~tmp~85) && ~send1 <= 127) && 0 == ~nomsg + 1 - InvariantResult [Line: 308]: Loop Invariant [2018-09-23 21:31:22,315 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,315 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,315 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-23 21:31:22,316 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] Derived loop invariant: (((((((!(~p1_old == ~nomsg) && 0 <= ~send1) && (exists v_~r1_9 : int :: v_~r1_9 % 256 + 1 == ~r1 && v_~r1_9 % 256 <= 0)) && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) || ((((((0 <= ~send1 && 1 <= ~mode2) && ~mode2 <= 1) && !(~p1_new == ~nomsg)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: ((((((0 <= ~send1 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && ~mode2 == 256 * (~mode2 / 256)) && ~send1 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) || (((((!(~p1_old == ~nomsg) && 0 <= ~send1) && 1 <= ~mode2) && ~mode2 <= 1) && ~send1 <= 127) && 0 == ~nomsg + 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 199 SDslu, 164 SDs, 0 SdLazy, 212 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=6, 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: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 93 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 176 NumberOfFragments, 1074 HoareAnnotationTreeSize, 14 FomulaSimplifications, 7061 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 14 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 217 ConstructedInterpolants, 8 QuantifiedInterpolants, 19798 SizeOfPredicates, 1 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 118/130 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-23_21-31-22-322.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-23_21-31-22-322.csv Received shutdown request...