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 0.1.23-1cc990c [2018-09-30 23:41:05,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 23:41:05,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 23:41:05,564 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 23:41:05,565 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 23:41:05,566 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 23:41:05,567 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 23:41:05,569 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 23:41:05,570 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 23:41:05,571 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 23:41:05,572 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 23:41:05,573 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 23:41:05,573 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 23:41:05,575 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 23:41:05,576 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 23:41:05,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 23:41:05,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 23:41:05,579 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 23:41:05,582 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 23:41:05,583 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 23:41:05,584 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 23:41:05,586 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 23:41:05,588 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 23:41:05,589 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 23:41:05,589 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 23:41:05,590 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 23:41:05,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 23:41:05,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 23:41:05,593 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 23:41:05,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 23:41:05,594 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 23:41:05,595 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 23:41:05,595 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 23:41:05,596 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 23:41:05,597 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 23:41:05,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 23:41:05,598 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 [2018-09-30 23:41:05,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 23:41:05,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 23:41:05,615 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 23:41:05,615 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 23:41:05,615 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 23:41:05,616 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 23:41:05,616 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 23:41:05,616 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 23:41:05,616 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 23:41:05,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 23:41:05,617 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 23:41:05,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 23:41:05,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 23:41:05,617 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 23:41:05,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 23:41:05,618 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 23:41:05,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 23:41:05,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 23:41:05,618 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 23:41:05,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 23:41:05,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 23:41:05,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 23:41:05,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 23:41:05,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 23:41:05,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 23:41:05,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 23:41:05,620 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 23:41:05,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 23:41:05,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 23:41:05,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 23:41:05,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 23:41:05,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 23:41:05,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 23:41:05,681 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 23:41:05,682 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 23:41:05,682 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-30 23:41:05,683 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl' [2018-09-30 23:41:05,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 23:41:05,760 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 23:41:05,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 23:41:05,762 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 23:41:05,762 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 23:41:05,780 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,798 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 23:41:05,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 23:41:05,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 23:41:05,807 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 23:41:05,818 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,819 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,822 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,822 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,830 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,833 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,836 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 30.09 11:41:05" (1/1) ... [2018-09-30 23:41:05,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 23:41:05,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 23:41:05,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 23:41:05,841 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 23:41:05,842 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 30.09 11:41:05" (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 [2018-09-30 23:41:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 23:41:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 23:41:06,519 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 23:41:06,519 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 30.09 11:41:06 BoogieIcfgContainer [2018-09-30 23:41:06,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 23:41:06,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 23:41:06,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 23:41:06,524 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 23:41:06,524 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 30.09 11:41:05" (1/2) ... [2018-09-30 23:41:06,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f49b72b and model type pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 11:41:06, skipping insertion in model container [2018-09-30 23:41:06,526 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 30.09 11:41:06" (2/2) ... [2018-09-30 23:41:06,528 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.UNBOUNDED.pals.c_16.bpl [2018-09-30 23:41:06,540 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 23:41:06,550 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 23:41:06,609 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 23:41:06,610 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 23:41:06,610 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 23:41:06,610 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 23:41:06,611 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 23:41:06,611 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 23:41:06,611 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 23:41:06,611 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 23:41:06,611 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 23:41:06,632 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-30 23:41:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 23:41:06,650 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:06,651 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 23:41:06,652 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:06,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:06,662 INFO L82 PathProgramCache]: Analyzing trace with hash 679324735, now seen corresponding path program 1 times [2018-09-30 23:41:06,665 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:06,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:06,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:06,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:06,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:06,901 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:06,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 23:41:06,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:06,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:06,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:06,923 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2018-09-30 23:41:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:06,992 INFO L93 Difference]: Finished difference Result 48 states and 68 transitions. [2018-09-30 23:41:06,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:06,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 23:41:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:07,005 INFO L225 Difference]: With dead ends: 48 [2018-09-30 23:41:07,006 INFO L226 Difference]: Without dead ends: 31 [2018-09-30 23:41:07,009 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 [2018-09-30 23:41:07,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-30 23:41:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2018-09-30 23:41:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-09-30 23:41:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2018-09-30 23:41:07,054 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 41 transitions. Word has length 15 [2018-09-30 23:41:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:07,055 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 41 transitions. [2018-09-30 23:41:07,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:07,055 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2018-09-30 23:41:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 23:41:07,056 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:07,056 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 23:41:07,057 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:07,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:07,057 INFO L82 PathProgramCache]: Analyzing trace with hash 92518721, now seen corresponding path program 1 times [2018-09-30 23:41:07,057 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:07,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:07,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:07,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:07,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:07,241 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:07,241 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 23:41:07,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:07,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:07,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:07,245 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand 3 states. [2018-09-30 23:41:07,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:07,317 INFO L93 Difference]: Finished difference Result 85 states and 121 transitions. [2018-09-30 23:41:07,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:07,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 23:41:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:07,319 INFO L225 Difference]: With dead ends: 85 [2018-09-30 23:41:07,320 INFO L226 Difference]: Without dead ends: 57 [2018-09-30 23:41:07,324 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 [2018-09-30 23:41:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-30 23:41:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-09-30 23:41:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-09-30 23:41:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2018-09-30 23:41:07,357 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 15 [2018-09-30 23:41:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:07,357 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2018-09-30 23:41:07,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2018-09-30 23:41:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 23:41:07,359 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:07,359 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 23:41:07,359 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:07,360 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:07,360 INFO L82 PathProgramCache]: Analyzing trace with hash 772577091, now seen corresponding path program 1 times [2018-09-30 23:41:07,361 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:07,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:07,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:07,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:07,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:07,532 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:07,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 23:41:07,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:07,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:07,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:07,533 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2018-09-30 23:41:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:07,679 INFO L93 Difference]: Finished difference Result 139 states and 197 transitions. [2018-09-30 23:41:07,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:07,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-09-30 23:41:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:07,686 INFO L225 Difference]: With dead ends: 139 [2018-09-30 23:41:07,686 INFO L226 Difference]: Without dead ends: 85 [2018-09-30 23:41:07,687 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 [2018-09-30 23:41:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-09-30 23:41:07,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2018-09-30 23:41:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-09-30 23:41:07,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 115 transitions. [2018-09-30 23:41:07,712 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 115 transitions. Word has length 15 [2018-09-30 23:41:07,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:07,713 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 115 transitions. [2018-09-30 23:41:07,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 115 transitions. [2018-09-30 23:41:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-30 23:41:07,714 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:07,714 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-30 23:41:07,717 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:07,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:07,718 INFO L82 PathProgramCache]: Analyzing trace with hash 774424133, now seen corresponding path program 1 times [2018-09-30 23:41:07,718 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:07,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:07,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:07,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:07,875 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:07,875 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 23:41:07,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 23:41:07,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 23:41:07,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-30 23:41:07,876 INFO L87 Difference]: Start difference. First operand 83 states and 115 transitions. Second operand 4 states. [2018-09-30 23:41:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:08,052 INFO L93 Difference]: Finished difference Result 155 states and 212 transitions. [2018-09-30 23:41:08,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 23:41:08,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-30 23:41:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:08,057 INFO L225 Difference]: With dead ends: 155 [2018-09-30 23:41:08,058 INFO L226 Difference]: Without dead ends: 153 [2018-09-30 23:41:08,058 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-09-30 23:41:08,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-09-30 23:41:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 91. [2018-09-30 23:41:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-09-30 23:41:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 121 transitions. [2018-09-30 23:41:08,085 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 121 transitions. Word has length 15 [2018-09-30 23:41:08,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:08,086 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 121 transitions. [2018-09-30 23:41:08,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 23:41:08,086 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 121 transitions. [2018-09-30 23:41:08,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 23:41:08,088 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:08,088 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] [2018-09-30 23:41:08,089 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:08,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:08,089 INFO L82 PathProgramCache]: Analyzing trace with hash 263176883, now seen corresponding path program 1 times [2018-09-30 23:41:08,090 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:08,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:08,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:08,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:08,209 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:08,209 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 23:41:08,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:08,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:08,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:08,211 INFO L87 Difference]: Start difference. First operand 91 states and 121 transitions. Second operand 3 states. [2018-09-30 23:41:08,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:08,301 INFO L93 Difference]: Finished difference Result 267 states and 357 transitions. [2018-09-30 23:41:08,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:08,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-30 23:41:08,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:08,304 INFO L225 Difference]: With dead ends: 267 [2018-09-30 23:41:08,304 INFO L226 Difference]: Without dead ends: 179 [2018-09-30 23:41:08,305 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 [2018-09-30 23:41:08,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-09-30 23:41:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2018-09-30 23:41:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-09-30 23:41:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 232 transitions. [2018-09-30 23:41:08,345 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 232 transitions. Word has length 28 [2018-09-30 23:41:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:08,345 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 232 transitions. [2018-09-30 23:41:08,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 232 transitions. [2018-09-30 23:41:08,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 23:41:08,347 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:08,348 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] [2018-09-30 23:41:08,348 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:08,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:08,349 INFO L82 PathProgramCache]: Analyzing trace with hash -437887695, now seen corresponding path program 1 times [2018-09-30 23:41:08,349 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:08,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:08,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:08,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:08,462 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:08,462 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:08,465 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 23:41:08,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:08,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:08,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:08,466 INFO L87 Difference]: Start difference. First operand 177 states and 232 transitions. Second operand 3 states. [2018-09-30 23:41:08,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:08,598 INFO L93 Difference]: Finished difference Result 525 states and 690 transitions. [2018-09-30 23:41:08,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:08,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-30 23:41:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:08,606 INFO L225 Difference]: With dead ends: 525 [2018-09-30 23:41:08,606 INFO L226 Difference]: Without dead ends: 351 [2018-09-30 23:41:08,610 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 [2018-09-30 23:41:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-30 23:41:08,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 349. [2018-09-30 23:41:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2018-09-30 23:41:08,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 448 transitions. [2018-09-30 23:41:08,697 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 448 transitions. Word has length 28 [2018-09-30 23:41:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:08,697 INFO L480 AbstractCegarLoop]: Abstraction has 349 states and 448 transitions. [2018-09-30 23:41:08,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:08,698 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 448 transitions. [2018-09-30 23:41:08,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-30 23:41:08,701 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:08,702 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] [2018-09-30 23:41:08,702 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:08,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:08,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2082072239, now seen corresponding path program 1 times [2018-09-30 23:41:08,704 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:08,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:08,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:08,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 23:41:08,877 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 23:41:08,877 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 [2018-09-30 23:41:08,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:08,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 23:41:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-30 23:41:09,370 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 23:41:09,370 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-09-30 23:41:09,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-30 23:41:09,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-30 23:41:09,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-30 23:41:09,372 INFO L87 Difference]: Start difference. First operand 349 states and 448 transitions. Second operand 7 states. [2018-09-30 23:41:09,608 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-30 23:41:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:11,899 INFO L93 Difference]: Finished difference Result 791 states and 1017 transitions. [2018-09-30 23:41:11,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-30 23:41:11,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-09-30 23:41:11,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:11,901 INFO L225 Difference]: With dead ends: 791 [2018-09-30 23:41:11,902 INFO L226 Difference]: Without dead ends: 287 [2018-09-30 23:41:11,904 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2018-09-30 23:41:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2018-09-30 23:41:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 266. [2018-09-30 23:41:11,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-09-30 23:41:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 314 transitions. [2018-09-30 23:41:11,959 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 314 transitions. Word has length 28 [2018-09-30 23:41:11,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:11,959 INFO L480 AbstractCegarLoop]: Abstraction has 266 states and 314 transitions. [2018-09-30 23:41:11,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-30 23:41:11,959 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 314 transitions. [2018-09-30 23:41:11,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-30 23:41:11,962 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 23:41:11,962 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] [2018-09-30 23:41:11,962 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 23:41:11,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-30 23:41:11,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1799101551, now seen corresponding path program 2 times [2018-09-30 23:41:11,963 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 23:41:11,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 23:41:11,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:11,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 23:41:11,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 23:41:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 23:41:12,025 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-09-30 23:41:12,026 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 23:41:12,026 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 23:41:12,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 23:41:12,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 23:41:12,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-30 23:41:12,027 INFO L87 Difference]: Start difference. First operand 266 states and 314 transitions. Second operand 3 states. [2018-09-30 23:41:12,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 23:41:12,039 INFO L93 Difference]: Finished difference Result 266 states and 314 transitions. [2018-09-30 23:41:12,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 23:41:12,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-09-30 23:41:12,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 23:41:12,039 INFO L225 Difference]: With dead ends: 266 [2018-09-30 23:41:12,040 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 23:41:12,041 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 [2018-09-30 23:41:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 23:41:12,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 23:41:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 23:41:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 23:41:12,042 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2018-09-30 23:41:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 23:41:12,042 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 23:41:12,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 23:41:12,042 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 23:41:12,042 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 23:41:12,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 23:41:12,899 WARN L178 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-30 23:41:13,130 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-30 23:41:13,560 WARN L178 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-30 23:41:13,844 WARN L178 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2018-09-30 23:41:14,078 WARN L178 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-30 23:41:14,390 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-30 23:41:14,554 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-30 23:41:14,625 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)))))) [2018-09-30 23:41:14,625 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))) [2018-09-30 23:41:14,625 INFO L422 ceAbstractionStarter]: At program point L366(lines 366 370) the Hoare annotation is: false [2018-09-30 23:41:14,626 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))) [2018-09-30 23:41:14,626 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))) [2018-09-30 23:41:14,626 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 66 372) no Hoare annotation was computed. [2018-09-30 23:41:14,626 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 66 372) no Hoare annotation was computed. [2018-09-30 23:41:14,626 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 371) no Hoare annotation was computed. [2018-09-30 23:41:14,626 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))) [2018-09-30 23:41:14,627 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))) [2018-09-30 23:41:14,627 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))) [2018-09-30 23:41:14,627 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 66 372) no Hoare annotation was computed. [2018-09-30 23:41:14,627 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))) [2018-09-30 23:41:14,628 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))) [2018-09-30 23:41:14,628 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))) [2018-09-30 23:41:14,628 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)))))) [2018-09-30 23:41:14,628 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))) [2018-09-30 23:41:14,629 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)))))) [2018-09-30 23:41:14,643 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,644 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,655 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,655 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,666 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,675 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,678 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,678 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,679 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,679 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,681 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,682 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,684 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,684 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,686 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,686 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,688 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,688 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,692 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,692 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,693 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,697 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,698 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,698 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,702 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,703 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,704 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,705 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,706 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,706 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,708 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 30.09 11:41:14 BoogieIcfgContainer [2018-09-30 23:41:14,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 23:41:14,710 INFO L168 Benchmark]: Toolchain (without parser) took 8952.01 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -13.7 MB). Peak memory consumption was 489.5 MB. Max. memory is 7.1 GB. [2018-09-30 23:41:14,711 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-09-30 23:41:14,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.22 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. [2018-09-30 23:41:14,712 INFO L168 Benchmark]: Boogie Preprocessor took 32.55 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. [2018-09-30 23:41:14,713 INFO L168 Benchmark]: RCFGBuilder took 679.47 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. [2018-09-30 23:41:14,714 INFO L168 Benchmark]: TraceAbstraction took 8188.04 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -45.4 MB). Peak memory consumption was 457.8 MB. Max. memory is 7.1 GB. [2018-09-30 23:41:14,719 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.22 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 32.55 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 679.47 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 8188.04 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -45.4 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 [2018-09-30 23:41:14,730 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,730 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,731 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,732 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 [2018-09-30 23:41:14,733 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,733 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,734 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,734 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 [2018-09-30 23:41:14,735 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,735 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,736 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,736 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 [2018-09-30 23:41:14,738 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,738 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,738 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,739 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 [2018-09-30 23:41:14,740 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,740 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,741 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,741 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 [2018-09-30 23:41:14,742 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,742 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,743 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,743 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 [2018-09-30 23:41:14,744 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,744 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,745 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,745 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 [2018-09-30 23:41:14,746 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,746 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,747 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,747 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 [2018-09-30 23:41:14,748 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,749 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,749 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~r1_9,QUANTIFIED] [2018-09-30 23:41:14,749 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, 8.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 2.5s 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, 1.5s 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: 0.2s 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, 2.3s 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-0-2018-09-30_23-41-14-759.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-0-2018-09-30_23-41-14-759.csv Received shutdown request...