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-c372c2b [2018-10-02 11:48:41,130 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 11:48:41,132 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 11:48:41,144 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 11:48:41,144 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 11:48:41,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 11:48:41,147 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 11:48:41,149 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 11:48:41,150 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 11:48:41,151 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 11:48:41,152 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-02 11:48:41,177 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 [2018-10-02 11:48:41,201 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 11:48:41,204 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 11:48:41,205 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 11:48:41,205 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 11:48:41,206 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 11:48:41,206 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 11:48:41,206 INFO L133 SettingsManager]: * Use SBE=true [2018-10-02 11:48:41,207 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 11:48:41,208 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 11:48:41,208 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 11:48:41,208 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 11:48:41,208 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 11:48:41,208 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 11:48:41,209 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 11:48:41,209 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 11:48:41,209 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 11:48:41,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 11:48:41,209 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 11:48:41,211 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 11:48:41,211 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-02 11:48:41,211 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 11:48:41,211 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-02 11:48:41,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 11:48:41,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 11:48:41,212 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 11:48:41,212 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 11:48:41,212 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-02 11:48:41,213 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 11:48:41,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 11:48:41,213 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 11:48:41,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 11:48:41,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 11:48:41,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 11:48:41,309 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 11:48:41,310 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 11:48:41,310 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-10-02 11:48:41,311 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl' [2018-10-02 11:48:41,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 11:48:41,415 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 11:48:41,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 11:48:41,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 11:48:41,416 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 11:48:41,437 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,456 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 11:48:41,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 11:48:41,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 11:48:41,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 11:48:41,487 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,487 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,492 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,493 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,512 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,519 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,523 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 02.10 11:48:41" (1/1) ... [2018-10-02 11:48:41,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 11:48:41,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 11:48:41,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 11:48:41,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 11:48:41,539 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 02.10 11:48:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 11:48:41,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-02 11:48:41,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-02 11:48:42,227 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-02 11:48:42,228 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 02.10 11:48:42 BoogieIcfgContainer [2018-10-02 11:48:42,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 11:48:42,229 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-02 11:48:42,229 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-02 11:48:42,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-02 11:48:42,233 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 02.10 11:48:41" (1/2) ... [2018-10-02 11:48:42,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a2d1c99 and model type pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:48:42, skipping insertion in model container [2018-10-02 11:48:42,235 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 02.10 11:48:42" (2/2) ... [2018-10-02 11:48:42,237 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-10-02 11:48:42,247 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-02 11:48:42,257 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-02 11:48:42,320 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-02 11:48:42,321 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-02 11:48:42,321 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-02 11:48:42,321 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-02 11:48:42,321 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-02 11:48:42,321 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-02 11:48:42,322 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-02 11:48:42,322 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-02 11:48:42,322 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-02 11:48:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-02 11:48:42,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-02 11:48:42,355 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:42,356 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-02 11:48:42,358 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:42,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:42,364 INFO L82 PathProgramCache]: Analyzing trace with hash 679324735, now seen corresponding path program 1 times [2018-10-02 11:48:42,366 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:42,367 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:42,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:42,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:42,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:42,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:42,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:42,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 11:48:42,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:42,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:42,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:42,744 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-10-02 11:48:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:42,839 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2018-10-02 11:48:42,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:42,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-02 11:48:42,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:42,862 INFO L225 Difference]: With dead ends: 48 [2018-10-02 11:48:42,862 INFO L226 Difference]: Without dead ends: 31 [2018-10-02 11:48:42,867 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 [2018-10-02 11:48:42,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-02 11:48:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-10-02 11:48:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-02 11:48:42,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2018-10-02 11:48:42,926 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 15 [2018-10-02 11:48:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:42,928 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2018-10-02 11:48:42,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2018-10-02 11:48:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-02 11:48:42,929 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:42,929 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-02 11:48:42,929 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:42,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:42,930 INFO L82 PathProgramCache]: Analyzing trace with hash 92518721, now seen corresponding path program 1 times [2018-10-02 11:48:42,930 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:42,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:42,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:42,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:42,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:43,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:43,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:43,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 11:48:43,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:43,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:43,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:43,077 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 3 states. [2018-10-02 11:48:43,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:43,122 INFO L93 Difference]: Finished difference Result 85 states and 121 transitions. [2018-10-02 11:48:43,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:43,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-02 11:48:43,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:43,127 INFO L225 Difference]: With dead ends: 85 [2018-10-02 11:48:43,127 INFO L226 Difference]: Without dead ends: 57 [2018-10-02 11:48:43,129 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 [2018-10-02 11:48:43,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-10-02 11:48:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-10-02 11:48:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-02 11:48:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2018-10-02 11:48:43,164 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 15 [2018-10-02 11:48:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:43,165 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2018-10-02 11:48:43,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:43,165 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2018-10-02 11:48:43,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-02 11:48:43,167 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:43,167 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-02 11:48:43,167 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:43,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:43,168 INFO L82 PathProgramCache]: Analyzing trace with hash 772577091, now seen corresponding path program 1 times [2018-10-02 11:48:43,168 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:43,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:43,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:43,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:43,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:43,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 11:48:43,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:43,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:43,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:43,328 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2018-10-02 11:48:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:43,417 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2018-10-02 11:48:43,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:43,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-02 11:48:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:43,422 INFO L225 Difference]: With dead ends: 139 [2018-10-02 11:48:43,423 INFO L226 Difference]: Without dead ends: 85 [2018-10-02 11:48:43,424 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 [2018-10-02 11:48:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-10-02 11:48:43,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2018-10-02 11:48:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-10-02 11:48:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2018-10-02 11:48:43,464 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 15 [2018-10-02 11:48:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:43,467 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2018-10-02 11:48:43,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:43,467 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2018-10-02 11:48:43,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-02 11:48:43,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:43,468 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-02 11:48:43,469 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:43,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:43,470 INFO L82 PathProgramCache]: Analyzing trace with hash 774424133, now seen corresponding path program 1 times [2018-10-02 11:48:43,470 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:43,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:43,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:43,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:43,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:43,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-02 11:48:43,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-02 11:48:43,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-02 11:48:43,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-02 11:48:43,606 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand 4 states. [2018-10-02 11:48:43,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:43,798 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2018-10-02 11:48:43,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-02 11:48:43,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-10-02 11:48:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:43,801 INFO L225 Difference]: With dead ends: 155 [2018-10-02 11:48:43,801 INFO L226 Difference]: Without dead ends: 153 [2018-10-02 11:48:43,806 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 [2018-10-02 11:48:43,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-10-02 11:48:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 91. [2018-10-02 11:48:43,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-10-02 11:48:43,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2018-10-02 11:48:43,845 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 15 [2018-10-02 11:48:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:43,846 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2018-10-02 11:48:43,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-02 11:48:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2018-10-02 11:48:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-02 11:48:43,847 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:43,848 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] [2018-10-02 11:48:43,849 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:43,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:43,849 INFO L82 PathProgramCache]: Analyzing trace with hash 263176883, now seen corresponding path program 1 times [2018-10-02 11:48:43,850 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:43,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:43,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:43,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:44,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:44,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-02 11:48:44,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:44,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:44,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:44,002 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand 3 states. [2018-10-02 11:48:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:44,060 INFO L93 Difference]: Finished difference Result 267 states and 357 transitions. [2018-10-02 11:48:44,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:44,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-10-02 11:48:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:44,066 INFO L225 Difference]: With dead ends: 267 [2018-10-02 11:48:44,069 INFO L226 Difference]: Without dead ends: 179 [2018-10-02 11:48:44,070 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 [2018-10-02 11:48:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-10-02 11:48:44,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2018-10-02 11:48:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-10-02 11:48:44,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2018-10-02 11:48:44,124 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 28 [2018-10-02 11:48:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:44,125 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2018-10-02 11:48:44,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2018-10-02 11:48:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-02 11:48:44,127 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:44,127 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] [2018-10-02 11:48:44,127 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:44,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:44,128 INFO L82 PathProgramCache]: Analyzing trace with hash -437887695, now seen corresponding path program 1 times [2018-10-02 11:48:44,128 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:44,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:44,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:44,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:44,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:44,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:44,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-02 11:48:44,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:44,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:44,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:44,267 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 3 states. [2018-10-02 11:48:44,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:44,365 INFO L93 Difference]: Finished difference Result 525 states and 690 transitions. [2018-10-02 11:48:44,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:44,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-10-02 11:48:44,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:44,369 INFO L225 Difference]: With dead ends: 525 [2018-10-02 11:48:44,369 INFO L226 Difference]: Without dead ends: 351 [2018-10-02 11:48:44,371 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 [2018-10-02 11:48:44,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-10-02 11:48:44,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-10-02 11:48:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-10-02 11:48:44,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 448 transitions. [2018-10-02 11:48:44,450 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 448 transitions. Word has length 28 [2018-10-02 11:48:44,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:44,451 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 448 transitions. [2018-10-02 11:48:44,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:44,451 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 448 transitions. [2018-10-02 11:48:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-02 11:48:44,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:44,455 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] [2018-10-02 11:48:44,458 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:44,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2082072239, now seen corresponding path program 1 times [2018-10-02 11:48:44,459 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:44,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:44,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:44,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:44,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:48:44,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-02 11:48:44,627 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-02 11:48:44,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:44,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 11:48:44,962 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-02 11:48:44,995 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-02 11:48:44,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-02 11:48:44,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-02 11:48:44,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-02 11:48:44,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-02 11:48:44,998 INFO L87 Difference]: Start difference. First operand 349 states and 448 transitions. Second operand 7 states. [2018-10-02 11:48:47,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:47,198 INFO L93 Difference]: Finished difference Result 791 states and 1017 transitions. [2018-10-02 11:48:47,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-02 11:48:47,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-10-02 11:48:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:47,200 INFO L225 Difference]: With dead ends: 791 [2018-10-02 11:48:47,200 INFO L226 Difference]: Without dead ends: 287 [2018-10-02 11:48:47,203 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-10-02 11:48:47,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-10-02 11:48:47,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 266. [2018-10-02 11:48:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-10-02 11:48:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 314 transitions. [2018-10-02 11:48:47,254 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 314 transitions. Word has length 28 [2018-10-02 11:48:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:47,255 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 314 transitions. [2018-10-02 11:48:47,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-02 11:48:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 314 transitions. [2018-10-02 11:48:47,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-02 11:48:47,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:48:47,257 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] [2018-10-02 11:48:47,258 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:48:47,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:48:47,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1799101551, now seen corresponding path program 2 times [2018-10-02 11:48:47,258 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:48:47,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:48:47,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:47,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:48:47,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:48:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:48:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-10-02 11:48:47,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:48:47,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 11:48:47,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:48:47,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:48:47,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:48:47,319 INFO L87 Difference]: Start difference. First operand 266 states and 314 transitions. Second operand 3 states. [2018-10-02 11:48:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:48:47,330 INFO L93 Difference]: Finished difference Result 266 states and 314 transitions. [2018-10-02 11:48:47,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:48:47,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-10-02 11:48:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:48:47,331 INFO L225 Difference]: With dead ends: 266 [2018-10-02 11:48:47,331 INFO L226 Difference]: Without dead ends: 0 [2018-10-02 11:48:47,332 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 [2018-10-02 11:48:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-02 11:48:47,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-02 11:48:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-02 11:48:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-02 11:48:47,333 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-10-02 11:48:47,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:48:47,333 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-02 11:48:47,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:48:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-02 11:48:47,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-02 11:48:47,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-02 11:48:48,753 WARN L178 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-02 11:48:49,035 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-10-02 11:48:49,137 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-10-02 11:48:49,509 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-10-02 11:48:49,743 WARN L178 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-10-02 11:48:50,002 WARN L178 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-10-02 11:48:50,248 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-10-02 11:48:50,351 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-10-02 11:48:50,431 INFO L421 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)))))) [2018-10-02 11:48:50,432 INFO L421 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))) [2018-10-02 11:48:50,432 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 371) no Hoare annotation was computed. [2018-10-02 11:48:50,432 INFO L421 ceAbstractionStarter]: At program point L366(lines 366 370) the Hoare annotation is: false [2018-10-02 11:48:50,432 INFO L421 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))) [2018-10-02 11:48:50,433 INFO L421 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))) [2018-10-02 11:48:50,433 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 66 372) no Hoare annotation was computed. [2018-10-02 11:48:50,433 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 66 372) no Hoare annotation was computed. [2018-10-02 11:48:50,433 INFO L421 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))) [2018-10-02 11:48:50,433 INFO L421 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))) [2018-10-02 11:48:50,434 INFO L421 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))) [2018-10-02 11:48:50,434 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 66 372) no Hoare annotation was computed. [2018-10-02 11:48:50,434 INFO L421 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))) [2018-10-02 11:48:50,434 INFO L421 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))) [2018-10-02 11:48:50,434 INFO L421 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))) [2018-10-02 11:48:50,435 INFO L421 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)))))) [2018-10-02 11:48:50,435 INFO L421 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))) [2018-10-02 11:48:50,435 INFO L421 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)))))) [2018-10-02 11:48:50,443 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,445 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,451 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,452 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,454 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,455 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,457 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,458 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,459 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,460 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,461 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,462 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,464 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,465 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,466 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,466 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,469 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,470 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,472 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,473 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,475 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,475 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,478 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,478 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,480 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,480 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,482 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,482 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,484 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,484 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,486 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,486 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,488 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,488 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,490 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,490 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,493 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 02.10 11:48:50 BoogieIcfgContainer [2018-10-02 11:48:50,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-02 11:48:50,494 INFO L168 Benchmark]: Toolchain (without parser) took 9082.43 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -16.8 MB). Peak memory consumption was 489.4 MB. Max. memory is 7.1 GB. [2018-10-02 11:48:50,496 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:48:50,496 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:48:50,497 INFO L168 Benchmark]: Boogie Preprocessor took 57.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:48:50,497 INFO L168 Benchmark]: RCFGBuilder took 695.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. [2018-10-02 11:48:50,498 INFO L168 Benchmark]: TraceAbstraction took 8264.27 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -48.6 MB). Peak memory consumption was 457.7 MB. Max. memory is 7.1 GB. [2018-10-02 11:48:50,503 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 695.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 8264.27 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -48.6 MB). Peak memory consumption was 457.7 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 [2018-10-02 11:48:50,516 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,516 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,518 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,518 WARN L390 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 [2018-10-02 11:48:50,520 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,520 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,522 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,522 WARN L390 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 [2018-10-02 11:48:50,523 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,524 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,525 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,525 WARN L390 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 [2018-10-02 11:48:50,527 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,527 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,528 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,528 WARN L390 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 [2018-10-02 11:48:50,530 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,531 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,532 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,532 WARN L390 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 [2018-10-02 11:48:50,534 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,534 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,535 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,535 WARN L390 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 [2018-10-02 11:48:50,537 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,537 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,538 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,538 WARN L390 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 [2018-10-02 11:48:50,539 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,539 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,540 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,540 WARN L390 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 [2018-10-02 11:48:50,542 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,542 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,543 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-10-02 11:48:50,543 WARN L390 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, 8.1s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 3.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 199 SDslu, 164 SDs, 0 SdLazy, 212 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.3s 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, 0.1s HoareSimplificationTime, 14 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s 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-0-2018-10-02_11-48-50-550.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-0-2018-10-02_11-48-50-550.csv Received shutdown request...