java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 17:51:58,458 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 17:51:58,461 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 17:51:58,478 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-18 17:51:58,512 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-18 17:51:58,535 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 17:51:58,535 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 17:51:58,537 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 17:51:58,537 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 17:51:58,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 17:51:58,540 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 17:51:58,540 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 17:51:58,541 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-18 17:51:58,541 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 17:51:58,541 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-18 17:51:58,541 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-18 17:51:58,541 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 17:51:58,542 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 17:51:58,542 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 17:51:58,544 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 17:51:58,544 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 17:51:58,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 17:51:58,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 17:51:58,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 17:51:58,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 17:51:58,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 17:51:58,545 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 17:51:58,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 17:51:58,548 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 17:51:58,548 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 17:51:58,548 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 17:51:58,548 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 17:51:58,549 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 17:51:58,550 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 17:51:58,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 17:51:58,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 17:51:58,550 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 17:51:58,550 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 17:51:58,551 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 17:51:58,551 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 17:51:58,551 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 17:51:58,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 17:51:58,551 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 17:51:58,552 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 17:51:58,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 17:51:58,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 17:51:58,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 17:51:58,633 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 17:51:58,634 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 17:51:58,635 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl [2018-12-18 17:51:58,635 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl' [2018-12-18 17:51:58,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 17:51:58,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 17:51:58,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 17:51:58,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 17:51:58,704 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 17:51:58,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 17:51:58,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 17:51:58,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 17:51:58,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 17:51:58,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/1) ... [2018-12-18 17:51:58,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 17:51:58,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 17:51:58,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 17:51:58,782 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 17:51:58,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (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 [2018-12-18 17:51:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-18 17:51:58,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-18 17:51:59,689 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-18 17:51:59,689 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-18 17:51:59,690 INFO L202 PluginConnector]: Adding new model eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:51:59 BoogieIcfgContainer [2018-12-18 17:51:59,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 17:51:59,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-18 17:51:59,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-18 17:51:59,698 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-18 17:51:59,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:51:58" (1/2) ... [2018-12-18 17:51:59,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7c85db and model type eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:51:59, skipping insertion in model container [2018-12-18 17:51:59,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:51:59" (2/2) ... [2018-12-18 17:51:59,702 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01.i_6.bpl [2018-12-18 17:51:59,710 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-18 17:51:59,723 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-18 17:51:59,736 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-18 17:51:59,769 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-18 17:51:59,770 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-18 17:51:59,770 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-18 17:51:59,770 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-18 17:51:59,770 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-18 17:51:59,770 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-18 17:51:59,770 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-18 17:51:59,772 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-18 17:51:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-12-18 17:51:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-18 17:51:59,794 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:51:59,795 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-18 17:51:59,798 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:51:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:51:59,805 INFO L82 PathProgramCache]: Analyzing trace with hash 28790350, now seen corresponding path program 1 times [2018-12-18 17:51:59,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:51:59,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:51:59,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:51:59,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:51:59,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:51:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:00,121 INFO L273 TraceCheckUtils]: 0: Hoare triple {12#true} ~INFINITY := 899;havoc main_#res;havoc main_#t~post0, main_#t~post2, main_#t~post1, main_#t~post3, main_#t~post4, main_~nodecount~4, main_~edgecount~4, main_~source~4, main_~Source~4, main_~Dest~4, main_~Weight~4, main_~distance~4, main_~x~4, main_~y~4, main_~i~4, main_~j~4;main_~nodecount~4 := 5;main_~edgecount~4 := 20;main_~source~4 := 0;main_~Source~4 := main_~Source~4[0 := 0];main_~Source~4 := main_~Source~4[1 := 4];main_~Source~4 := main_~Source~4[2 := 1];main_~Source~4 := main_~Source~4[3 := 1];main_~Source~4 := main_~Source~4[4 := 0];main_~Source~4 := main_~Source~4[5 := 0];main_~Source~4 := main_~Source~4[6 := 1];main_~Source~4 := main_~Source~4[7 := 3];main_~Source~4 := main_~Source~4[8 := 4];main_~Source~4 := main_~Source~4[9 := 4];main_~Source~4 := main_~Source~4[10 := 2];main_~Source~4 := main_~Source~4[11 := 2];main_~Source~4 := main_~Source~4[12 := 3];main_~Source~4 := main_~Source~4[13 := 0];main_~Source~4 := main_~Source~4[14 := 0];main_~Source~4 := main_~Source~4[15 := 3];main_~Source~4 := main_~Source~4[16 := 1];main_~Source~4 := main_~Source~4[17 := 2];main_~Source~4 := main_~Source~4[18 := 2];main_~Source~4 := main_~Source~4[19 := 3];main_~Dest~4 := main_~Dest~4[0 := 1];main_~Dest~4 := main_~Dest~4[1 := 3];main_~Dest~4 := main_~Dest~4[2 := 4];main_~Dest~4 := main_~Dest~4[3 := 1];main_~Dest~4 := main_~Dest~4[4 := 1];main_~Dest~4 := main_~Dest~4[5 := 4];main_~Dest~4 := main_~Dest~4[6 := 3];main_~Dest~4 := main_~Dest~4[7 := 4];main_~Dest~4 := main_~Dest~4[8 := 3];main_~Dest~4 := main_~Dest~4[9 := 0];main_~Dest~4 := main_~Dest~4[10 := 0];main_~Dest~4 := main_~Dest~4[11 := 0];main_~Dest~4 := main_~Dest~4[12 := 0];main_~Dest~4 := main_~Dest~4[13 := 2];main_~Dest~4 := main_~Dest~4[14 := 3];main_~Dest~4 := main_~Dest~4[15 := 0];main_~Dest~4 := main_~Dest~4[16 := 2];main_~Dest~4 := main_~Dest~4[17 := 1];main_~Dest~4 := main_~Dest~4[18 := 0];main_~Dest~4 := main_~Dest~4[19 := 4];main_~Weight~4 := main_~Weight~4[0 := 0];main_~Weight~4 := main_~Weight~4[1 := 1];main_~Weight~4 := main_~Weight~4[2 := 2];main_~Weight~4 := main_~Weight~4[3 := 3];main_~Weight~4 := main_~Weight~4[4 := 4];main_~Weight~4 := main_~Weight~4[5 := 5];main_~Weight~4 := main_~Weight~4[6 := 6];main_~Weight~4 := main_~Weight~4[7 := 7];main_~Weight~4 := main_~Weight~4[8 := 8];main_~Weight~4 := main_~Weight~4[9 := 9];main_~Weight~4 := main_~Weight~4[10 := 10];main_~Weight~4 := main_~Weight~4[11 := 11];main_~Weight~4 := main_~Weight~4[12 := 12];main_~Weight~4 := main_~Weight~4[13 := 13];main_~Weight~4 := main_~Weight~4[14 := 14];main_~Weight~4 := main_~Weight~4[15 := 15];main_~Weight~4 := main_~Weight~4[16 := 16];main_~Weight~4 := main_~Weight~4[17 := 17];main_~Weight~4 := main_~Weight~4[18 := 18];main_~Weight~4 := main_~Weight~4[19 := 19];havoc main_~distance~4;havoc main_~x~4;havoc main_~y~4;havoc main_~i~4;havoc main_~j~4;main_~i~4 := 0; {14#(<= 20 ULTIMATE.start_main_~edgecount~4)} is VALID [2018-12-18 17:52:00,126 INFO L273 TraceCheckUtils]: 1: Hoare triple {14#(<= 20 ULTIMATE.start_main_~edgecount~4)} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {14#(<= 20 ULTIMATE.start_main_~edgecount~4)} is VALID [2018-12-18 17:52:00,127 INFO L273 TraceCheckUtils]: 2: Hoare triple {14#(<= 20 ULTIMATE.start_main_~edgecount~4)} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {15#(and (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0))} is VALID [2018-12-18 17:52:00,134 INFO L273 TraceCheckUtils]: 3: Hoare triple {15#(and (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0))} assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {13#false} is VALID [2018-12-18 17:52:00,135 INFO L273 TraceCheckUtils]: 4: Hoare triple {13#false} assume !false; {13#false} is VALID [2018-12-18 17:52:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:00,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 17:52:00,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-18 17:52:00,140 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:52:00,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-12-18 17:52:00,148 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:00,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-12-18 17:52:00,199 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:00,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-18 17:52:00,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-18 17:52:00,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-18 17:52:00,210 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2018-12-18 17:52:00,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:00,673 INFO L93 Difference]: Finished difference Result 15 states and 22 transitions. [2018-12-18 17:52:00,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-18 17:52:00,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-12-18 17:52:00,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2018-12-18 17:52:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2018-12-18 17:52:00,686 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 22 transitions. [2018-12-18 17:52:00,827 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:00,839 INFO L225 Difference]: With dead ends: 15 [2018-12-18 17:52:00,840 INFO L226 Difference]: Without dead ends: 11 [2018-12-18 17:52:00,844 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-18 17:52:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-18 17:52:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-12-18 17:52:01,020 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:01,021 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 8 states. [2018-12-18 17:52:01,022 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 8 states. [2018-12-18 17:52:01,022 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 8 states. [2018-12-18 17:52:01,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:01,025 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2018-12-18 17:52:01,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 17 transitions. [2018-12-18 17:52:01,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:01,026 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:01,026 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 11 states. [2018-12-18 17:52:01,026 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 11 states. [2018-12-18 17:52:01,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:01,028 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2018-12-18 17:52:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 17 transitions. [2018-12-18 17:52:01,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:01,029 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:01,029 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:01,030 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:01,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-18 17:52:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-12-18 17:52:01,033 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 11 transitions. Word has length 5 [2018-12-18 17:52:01,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:01,034 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-18 17:52:01,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-18 17:52:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2018-12-18 17:52:01,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-18 17:52:01,035 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:01,035 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-18 17:52:01,035 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:01,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:01,036 INFO L82 PathProgramCache]: Analyzing trace with hash 892498710, now seen corresponding path program 1 times [2018-12-18 17:52:01,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:01,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:01,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:01,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:01,038 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:01,290 INFO L273 TraceCheckUtils]: 0: Hoare triple {79#true} ~INFINITY := 899;havoc main_#res;havoc main_#t~post0, main_#t~post2, main_#t~post1, main_#t~post3, main_#t~post4, main_~nodecount~4, main_~edgecount~4, main_~source~4, main_~Source~4, main_~Dest~4, main_~Weight~4, main_~distance~4, main_~x~4, main_~y~4, main_~i~4, main_~j~4;main_~nodecount~4 := 5;main_~edgecount~4 := 20;main_~source~4 := 0;main_~Source~4 := main_~Source~4[0 := 0];main_~Source~4 := main_~Source~4[1 := 4];main_~Source~4 := main_~Source~4[2 := 1];main_~Source~4 := main_~Source~4[3 := 1];main_~Source~4 := main_~Source~4[4 := 0];main_~Source~4 := main_~Source~4[5 := 0];main_~Source~4 := main_~Source~4[6 := 1];main_~Source~4 := main_~Source~4[7 := 3];main_~Source~4 := main_~Source~4[8 := 4];main_~Source~4 := main_~Source~4[9 := 4];main_~Source~4 := main_~Source~4[10 := 2];main_~Source~4 := main_~Source~4[11 := 2];main_~Source~4 := main_~Source~4[12 := 3];main_~Source~4 := main_~Source~4[13 := 0];main_~Source~4 := main_~Source~4[14 := 0];main_~Source~4 := main_~Source~4[15 := 3];main_~Source~4 := main_~Source~4[16 := 1];main_~Source~4 := main_~Source~4[17 := 2];main_~Source~4 := main_~Source~4[18 := 2];main_~Source~4 := main_~Source~4[19 := 3];main_~Dest~4 := main_~Dest~4[0 := 1];main_~Dest~4 := main_~Dest~4[1 := 3];main_~Dest~4 := main_~Dest~4[2 := 4];main_~Dest~4 := main_~Dest~4[3 := 1];main_~Dest~4 := main_~Dest~4[4 := 1];main_~Dest~4 := main_~Dest~4[5 := 4];main_~Dest~4 := main_~Dest~4[6 := 3];main_~Dest~4 := main_~Dest~4[7 := 4];main_~Dest~4 := main_~Dest~4[8 := 3];main_~Dest~4 := main_~Dest~4[9 := 0];main_~Dest~4 := main_~Dest~4[10 := 0];main_~Dest~4 := main_~Dest~4[11 := 0];main_~Dest~4 := main_~Dest~4[12 := 0];main_~Dest~4 := main_~Dest~4[13 := 2];main_~Dest~4 := main_~Dest~4[14 := 3];main_~Dest~4 := main_~Dest~4[15 := 0];main_~Dest~4 := main_~Dest~4[16 := 2];main_~Dest~4 := main_~Dest~4[17 := 1];main_~Dest~4 := main_~Dest~4[18 := 0];main_~Dest~4 := main_~Dest~4[19 := 4];main_~Weight~4 := main_~Weight~4[0 := 0];main_~Weight~4 := main_~Weight~4[1 := 1];main_~Weight~4 := main_~Weight~4[2 := 2];main_~Weight~4 := main_~Weight~4[3 := 3];main_~Weight~4 := main_~Weight~4[4 := 4];main_~Weight~4 := main_~Weight~4[5 := 5];main_~Weight~4 := main_~Weight~4[6 := 6];main_~Weight~4 := main_~Weight~4[7 := 7];main_~Weight~4 := main_~Weight~4[8 := 8];main_~Weight~4 := main_~Weight~4[9 := 9];main_~Weight~4 := main_~Weight~4[10 := 10];main_~Weight~4 := main_~Weight~4[11 := 11];main_~Weight~4 := main_~Weight~4[12 := 12];main_~Weight~4 := main_~Weight~4[13 := 13];main_~Weight~4 := main_~Weight~4[14 := 14];main_~Weight~4 := main_~Weight~4[15 := 15];main_~Weight~4 := main_~Weight~4[16 := 16];main_~Weight~4 := main_~Weight~4[17 := 17];main_~Weight~4 := main_~Weight~4[18 := 18];main_~Weight~4 := main_~Weight~4[19 := 19];havoc main_~distance~4;havoc main_~x~4;havoc main_~y~4;havoc main_~i~4;havoc main_~j~4;main_~i~4 := 0; {81#(<= 20 ULTIMATE.start_main_~edgecount~4)} is VALID [2018-12-18 17:52:01,292 INFO L273 TraceCheckUtils]: 1: Hoare triple {81#(<= 20 ULTIMATE.start_main_~edgecount~4)} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {81#(<= 20 ULTIMATE.start_main_~edgecount~4)} is VALID [2018-12-18 17:52:01,292 INFO L273 TraceCheckUtils]: 2: Hoare triple {81#(<= 20 ULTIMATE.start_main_~edgecount~4)} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {82#(and (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0))} is VALID [2018-12-18 17:52:01,293 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#(and (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0))} assume !!(main_~i~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~i~4];main_~y~4 := main_~Source~4[main_~i~4];assume !(main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~i~4]);main_#t~post3 := main_~i~4;main_~i~4 := main_#t~post3 + 1;havoc main_#t~post3; {83#(<= (+ ULTIMATE.start_main_~i~4 19) ULTIMATE.start_main_~edgecount~4)} is VALID [2018-12-18 17:52:01,294 INFO L273 TraceCheckUtils]: 4: Hoare triple {83#(<= (+ ULTIMATE.start_main_~i~4 19) ULTIMATE.start_main_~edgecount~4)} assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {80#false} is VALID [2018-12-18 17:52:01,295 INFO L273 TraceCheckUtils]: 5: Hoare triple {80#false} assume !false; {80#false} is VALID [2018-12-18 17:52:01,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:01,297 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:01,297 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:01,298 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2018-12-18 17:52:01,300 INFO L207 CegarAbsIntRunner]: [0], [5], [12], [20], [22], [30] [2018-12-18 17:52:01,348 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-18 17:52:01,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 17:52:01,451 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-18 17:52:01,452 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 131 root evaluator evaluations with a maximum evaluation depth of 3. Performed 131 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 0 variables. [2018-12-18 17:52:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:01,456 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-18 17:52:01,599 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 40% of their original sizes. [2018-12-18 17:52:01,632 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2018-12-18 17:52:01,696 INFO L420 sIntCurrentIteration]: We unified 5 AI predicates to 5 [2018-12-18 17:52:01,714 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-18 17:52:01,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-18 17:52:01,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-12-18 17:52:01,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:52:01,718 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2018-12-18 17:52:01,718 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:01,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-18 17:52:01,737 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:01,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-18 17:52:01,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-18 17:52:01,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 17:52:01,739 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2018-12-18 17:52:01,779 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:01,779 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:01,780 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:01,781 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:01,781 WARN L224 ngHoareTripleChecker]: Pre: {129#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:01,782 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~nodecount~4);assume !(main_~i~4 == main_~source~4);main_~distance~4 := main_~distance~4[main_~i~4 := ~INFINITY];main_#t~post0 := main_~i~4;main_~i~4 := main_#t~post0 + 1;havoc main_#t~post0; [2018-12-18 17:52:01,783 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (not (= c_ULTIMATE.start_main_~source~4 c_ULTIMATE.start_main_~i~4)) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4 c_~INFINITY))) [2018-12-18 17:52:01,783 WARN L230 ngHoareTripleChecker]: Post: {130#false} [2018-12-18 17:52:01,783 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:01,786 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:01,786 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:01,815 WARN L270 ngHoareTripleChecker]: Pre: {129#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:01,815 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~nodecount~4);assume !(main_~i~4 == main_~source~4);main_~distance~4 := main_~distance~4[main_~i~4 := ~INFINITY];main_#t~post0 := main_~i~4;main_~i~4 := main_#t~post0 + 1;havoc main_#t~post0; [2018-12-18 17:52:01,816 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (not (= c_ULTIMATE.start_main_~source~4 c_ULTIMATE.start_main_~i~4)) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4 c_~INFINITY))) [2018-12-18 17:52:01,838 WARN L276 ngHoareTripleChecker]: Post: {130#false} [2018-12-18 17:52:01,909 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:01,910 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:01,910 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~i~4 = 0; ULTIMATE.start_main_~nodecount~4 = 5; TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~i~4 = 0; ULTIMATE.start_main_~nodecount~4 = 5; TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:01,911 WARN L628 ntHoareTripleChecker]: (and (not (= c_ULTIMATE.start_main_~source~4 c_ULTIMATE.start_main_~i~4)) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4 c_~INFINITY))) (assume !!(main_~i~4 < main_~nodecount~4);assume !(main_~i~4 == main_~source~4);main_~distance~4 := main_~distance~4[main_~i~4 := ~INFINITY];main_#t~post0 := main_~i~4;main_~i~4 := main_#t~post0 + 1;havoc main_#t~post0;) [2018-12-18 17:52:01,913 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: BOTTOM (FIXED) , Exp: BOTTOM (FIXED) , }} [2018-12-18 17:52:01,914 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,028 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,028 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,029 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,029 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,030 WARN L224 ngHoareTripleChecker]: Pre: {139#true} [2018-12-18 17:52:02,030 WARN L228 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; [2018-12-18 17:52:02,030 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~i~4_primed 0) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4))) [2018-12-18 17:52:02,030 WARN L230 ngHoareTripleChecker]: Post: {140#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,031 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,032 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,033 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,059 WARN L270 ngHoareTripleChecker]: Pre: {139#true} [2018-12-18 17:52:02,059 WARN L274 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; [2018-12-18 17:52:02,060 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~i~4_primed 0) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4))) [2018-12-18 17:52:02,170 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-12-18 17:52:02,171 WARN L276 ngHoareTripleChecker]: Post: {140#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,172 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,172 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,172 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,172 WARN L628 ntHoareTripleChecker]: (and (= c_ULTIMATE.start_main_~i~4_primed 0) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4))) (assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0;) [2018-12-18 17:52:02,173 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,173 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,227 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,227 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,231 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,231 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,231 WARN L224 ngHoareTripleChecker]: Pre: {145#true} [2018-12-18 17:52:02,231 WARN L228 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; [2018-12-18 17:52:02,232 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) (= c_ULTIMATE.start_main_~i~4_primed 0)) [2018-12-18 17:52:02,232 WARN L230 ngHoareTripleChecker]: Post: {146#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,232 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,233 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,233 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,257 WARN L270 ngHoareTripleChecker]: Pre: {145#true} [2018-12-18 17:52:02,258 WARN L274 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; [2018-12-18 17:52:02,258 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) (= c_ULTIMATE.start_main_~i~4_primed 0)) [2018-12-18 17:52:02,303 WARN L276 ngHoareTripleChecker]: Post: {146#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,303 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,303 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,304 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,304 WARN L628 ntHoareTripleChecker]: (and (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) (= c_ULTIMATE.start_main_~i~4_primed 0)) (assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0;) [2018-12-18 17:52:02,304 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,304 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,321 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,321 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,321 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,322 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,322 WARN L224 ngHoareTripleChecker]: Pre: {149#true} [2018-12-18 17:52:02,322 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~nodecount~4);main_~j~4 := 0; [2018-12-18 17:52:02,322 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~j~4_primed 0) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) [2018-12-18 17:52:02,323 WARN L230 ngHoareTripleChecker]: Post: {150#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,323 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,324 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,325 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,326 WARN L270 ngHoareTripleChecker]: Pre: {149#true} [2018-12-18 17:52:02,326 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~nodecount~4);main_~j~4 := 0; [2018-12-18 17:52:02,327 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~j~4_primed 0) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) [2018-12-18 17:52:02,337 WARN L276 ngHoareTripleChecker]: Post: {150#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,338 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,338 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,338 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,338 WARN L628 ntHoareTripleChecker]: (and (= c_ULTIMATE.start_main_~j~4_primed 0) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~nodecount~4)) (assume !!(main_~i~4 < main_~nodecount~4);main_~j~4 := 0;) [2018-12-18 17:52:02,339 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,339 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,438 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,438 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,439 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,439 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,440 WARN L224 ngHoareTripleChecker]: Pre: {155#true} [2018-12-18 17:52:02,440 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~i~4];main_~y~4 := main_~Source~4[main_~i~4];assume !(main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~i~4]);main_#t~post3 := main_~i~4;main_~i~4 := main_#t~post3 + 1;havoc main_#t~post3; [2018-12-18 17:52:02,440 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~i~4)) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~i~4)) (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed))) (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~i~4))) [2018-12-18 17:52:02,441 WARN L230 ngHoareTripleChecker]: Post: {156#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,441 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,442 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,442 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,465 WARN L270 ngHoareTripleChecker]: Pre: {155#true} [2018-12-18 17:52:02,466 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~i~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~i~4];main_~y~4 := main_~Source~4[main_~i~4];assume !(main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~i~4]);main_#t~post3 := main_~i~4;main_~i~4 := main_#t~post3 + 1;havoc main_#t~post3; [2018-12-18 17:52:02,466 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~i~4)) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~i~4)) (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed))) (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~i~4))) [2018-12-18 17:52:02,573 WARN L181 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-12-18 17:52:02,573 WARN L276 ngHoareTripleChecker]: Post: {156#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,574 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,574 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,574 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,574 WARN L628 ntHoareTripleChecker]: (and (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~i~4)) (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4) (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~i~4)) (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed))) (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~i~4))) (assume !!(main_~i~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~i~4];main_~y~4 := main_~Source~4[main_~i~4];assume !(main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~i~4]);main_#t~post3 := main_~i~4;main_~i~4 := main_#t~post3 + 1;havoc main_#t~post3;) [2018-12-18 17:52:02,575 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,575 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,661 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,661 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,661 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,662 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,662 WARN L224 ngHoareTripleChecker]: Pre: {159#true} [2018-12-18 17:52:02,662 WARN L228 ngHoareTripleChecker]: Action: assume !(main_~j~4 < main_~edgecount~4);main_#t~post1 := main_~i~4;main_~i~4 := main_#t~post1 + 1;havoc main_#t~post1; [2018-12-18 17:52:02,662 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4))) [2018-12-18 17:52:02,663 WARN L230 ngHoareTripleChecker]: Post: {160#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,663 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,664 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,664 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,686 WARN L270 ngHoareTripleChecker]: Pre: {159#true} [2018-12-18 17:52:02,687 WARN L274 ngHoareTripleChecker]: Action: assume !(main_~j~4 < main_~edgecount~4);main_#t~post1 := main_~i~4;main_~i~4 := main_#t~post1 + 1;havoc main_#t~post1; [2018-12-18 17:52:02,687 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4))) [2018-12-18 17:52:02,727 WARN L276 ngHoareTripleChecker]: Post: {160#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,727 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,728 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,728 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,728 WARN L628 ntHoareTripleChecker]: (and (= (+ c_ULTIMATE.start_main_~i~4 1) c_ULTIMATE.start_main_~i~4_primed) (not (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4))) (assume !(main_~j~4 < main_~edgecount~4);main_#t~post1 := main_~i~4;main_~i~4 := main_#t~post1 + 1;havoc main_#t~post1;) [2018-12-18 17:52:02,728 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,728 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,789 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:02,789 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:02,790 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:02,790 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,790 WARN L224 ngHoareTripleChecker]: Pre: {161#true} [2018-12-18 17:52:02,791 WARN L228 ngHoareTripleChecker]: Action: assume !!(main_~j~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~j~4];main_~y~4 := main_~Source~4[main_~j~4];assume main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4];main_~distance~4 := main_~distance~4[main_~x~4 := main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4]];main_#t~post2 := main_~j~4;main_~j~4 := main_#t~post2 + 1;havoc main_#t~post2; [2018-12-18 17:52:02,791 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~j~4)) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~j~4)))) (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4) (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~j~4)) (= (+ c_ULTIMATE.start_main_~j~4 1) c_ULTIMATE.start_main_~j~4_primed) (< (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~j~4)) (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed))) [2018-12-18 17:52:02,791 WARN L230 ngHoareTripleChecker]: Post: {162#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,791 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:02,796 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:02,796 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:02,819 WARN L270 ngHoareTripleChecker]: Pre: {161#true} [2018-12-18 17:52:02,820 WARN L274 ngHoareTripleChecker]: Action: assume !!(main_~j~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~j~4];main_~y~4 := main_~Source~4[main_~j~4];assume main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4];main_~distance~4 := main_~distance~4[main_~x~4 := main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4]];main_#t~post2 := main_~j~4;main_~j~4 := main_#t~post2 + 1;havoc main_#t~post2; [2018-12-18 17:52:02,820 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~j~4)) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~j~4)))) (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4) (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~j~4)) (= (+ c_ULTIMATE.start_main_~j~4 1) c_ULTIMATE.start_main_~j~4_primed) (< (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~j~4)) (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed))) [2018-12-18 17:52:02,889 WARN L276 ngHoareTripleChecker]: Post: {162#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:02,889 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:02,889 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:02,890 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:02,890 WARN L628 ntHoareTripleChecker]: (let ((.cse0 (+ (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~y~4_primed) (select c_ULTIMATE.start_main_~Weight~4 c_ULTIMATE.start_main_~j~4)))) (and (= c_ULTIMATE.start_main_~x~4_primed (select c_ULTIMATE.start_main_~Dest~4 c_ULTIMATE.start_main_~j~4)) (= c_ULTIMATE.start_main_~distance~4_primed (store c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed .cse0)) (< c_ULTIMATE.start_main_~j~4 c_ULTIMATE.start_main_~edgecount~4) (= c_ULTIMATE.start_main_~y~4_primed (select c_ULTIMATE.start_main_~Source~4 c_ULTIMATE.start_main_~j~4)) (= (+ c_ULTIMATE.start_main_~j~4 1) c_ULTIMATE.start_main_~j~4_primed) (< .cse0 (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~x~4_primed)))) (assume !!(main_~j~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~j~4];main_~y~4 := main_~Source~4[main_~j~4];assume main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4];main_~distance~4 := main_~distance~4[main_~x~4 := main_~distance~4[main_~y~4] + main_~Weight~4[main_~j~4]];main_#t~post2 := main_~j~4;main_~j~4 := main_#t~post2 + 1;havoc main_#t~post2;) [2018-12-18 17:52:02,890 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:02,890 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:03,582 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2018-12-18 17:52:03,583 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2018-12-18 17:52:03,583 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2018-12-18 17:52:03,584 WARN L223 ngHoareTripleChecker]: -- [2018-12-18 17:52:03,584 WARN L224 ngHoareTripleChecker]: Pre: {164#true} [2018-12-18 17:52:03,584 WARN L228 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; [2018-12-18 17:52:03,584 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (< c_ULTIMATE.start_main_~i~4_primed c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start___VERIFIER_assert_~cond_primed |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed|) (= c_ULTIMATE.start_main_~i~4_primed 0) (= |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed| (ite (<= 0 (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4_primed)) 1 0)) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond_primed) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4))) [2018-12-18 17:52:03,585 WARN L230 ngHoareTripleChecker]: Post: {165#(and (= c_ULTIMATE.start_main_~edgecount~4 20) (= c_ULTIMATE.start_main_~nodecount~4 5) (= c_ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:03,585 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2018-12-18 17:52:03,585 WARN L268 ngHoareTripleChecker]: -- [2018-12-18 17:52:03,585 WARN L269 ngHoareTripleChecker]: Simplified triple [2018-12-18 17:52:03,607 WARN L270 ngHoareTripleChecker]: Pre: {164#true} [2018-12-18 17:52:03,607 WARN L274 ngHoareTripleChecker]: Action: assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; [2018-12-18 17:52:03,607 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (< c_ULTIMATE.start_main_~i~4_primed c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start___VERIFIER_assert_~cond_primed |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed|) (= c_ULTIMATE.start_main_~i~4_primed 0) (= |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed| (ite (<= 0 (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4_primed)) 1 0)) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond_primed) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4))) [2018-12-18 17:52:03,622 WARN L276 ngHoareTripleChecker]: Post: {165#(and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (= ULTIMATE.start_main_~i~4 0))} [2018-12-18 17:52:03,623 WARN L620 ntHoareTripleChecker]: -- [2018-12-18 17:52:03,623 WARN L621 ntHoareTripleChecker]: Abstract states [2018-12-18 17:52:03,623 WARN L623 ntHoareTripleChecker]: PreS: {#1{Con: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , Exp: TOP: ~INFINITY, old(~INFINITY), ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start_main_#t~post3, ULTIMATE.start_main_~edgecount~4, ULTIMATE.start_main_~source~4, ULTIMATE.start_main_#t~post2, ULTIMATE.start_main_~x~4, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_#t~post0, ULTIMATE.start_main_~i~4, ULTIMATE.start_main_#t~post4, ULTIMATE.start_main_~Weight~4, ULTIMATE.start_main_~j~4, ULTIMATE.start_main_#res, ULTIMATE.start_main_~Source~4, ULTIMATE.start_main_~distance~4, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_main_~nodecount~4, ULTIMATE.start_main_~y~4, ULTIMATE.start_main_~Dest~4 , }} [2018-12-18 17:52:03,623 WARN L628 ntHoareTripleChecker]: (and (< c_ULTIMATE.start_main_~i~4_primed c_ULTIMATE.start_main_~nodecount~4) (= c_ULTIMATE.start___VERIFIER_assert_~cond_primed |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed|) (= c_ULTIMATE.start_main_~i~4_primed 0) (= |c_ULTIMATE.start___VERIFIER_assert_#in~cond_primed| (ite (<= 0 (select c_ULTIMATE.start_main_~distance~4 c_ULTIMATE.start_main_~i~4_primed)) 1 0)) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond_primed) (not (< c_ULTIMATE.start_main_~i~4 c_ULTIMATE.start_main_~edgecount~4))) (assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false;) [2018-12-18 17:52:03,624 WARN L629 ntHoareTripleChecker]: Post: {#1{Con: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , Exp: ULTIMATE.start_main_~edgecount~4 = 20; ULTIMATE.start_main_~nodecount~4 = 5; ULTIMATE.start_main_~i~4 = 0; , }} [2018-12-18 17:52:03,624 WARN L630 ntHoareTripleChecker]: -- [2018-12-18 17:52:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:03,681 INFO L93 Difference]: Finished difference Result 15 states and 21 transitions. [2018-12-18 17:52:03,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-18 17:52:03,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2018-12-18 17:52:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2018-12-18 17:52:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:03,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 19 transitions. [2018-12-18 17:52:03,685 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 19 transitions. [2018-12-18 17:52:03,765 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:03,766 INFO L225 Difference]: With dead ends: 15 [2018-12-18 17:52:03,766 INFO L226 Difference]: Without dead ends: 9 [2018-12-18 17:52:03,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 17:52:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-18 17:52:03,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-18 17:52:03,827 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:03,827 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:03,827 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:03,828 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:03,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:03,829 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2018-12-18 17:52:03,830 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-12-18 17:52:03,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:03,830 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:03,831 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:03,831 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:03,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:03,832 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2018-12-18 17:52:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-12-18 17:52:03,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:03,833 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:03,833 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:03,833 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-18 17:52:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2018-12-18 17:52:03,834 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 12 transitions. Word has length 6 [2018-12-18 17:52:03,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:03,835 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 12 transitions. [2018-12-18 17:52:03,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-18 17:52:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-12-18 17:52:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-18 17:52:03,835 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:03,835 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-18 17:52:03,836 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:03,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:03,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1948209421, now seen corresponding path program 1 times [2018-12-18 17:52:03,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:03,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:03,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:03,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:03,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:03,960 INFO L273 TraceCheckUtils]: 0: Hoare triple {205#true} ~INFINITY := 899;havoc main_#res;havoc main_#t~post0, main_#t~post2, main_#t~post1, main_#t~post3, main_#t~post4, main_~nodecount~4, main_~edgecount~4, main_~source~4, main_~Source~4, main_~Dest~4, main_~Weight~4, main_~distance~4, main_~x~4, main_~y~4, main_~i~4, main_~j~4;main_~nodecount~4 := 5;main_~edgecount~4 := 20;main_~source~4 := 0;main_~Source~4 := main_~Source~4[0 := 0];main_~Source~4 := main_~Source~4[1 := 4];main_~Source~4 := main_~Source~4[2 := 1];main_~Source~4 := main_~Source~4[3 := 1];main_~Source~4 := main_~Source~4[4 := 0];main_~Source~4 := main_~Source~4[5 := 0];main_~Source~4 := main_~Source~4[6 := 1];main_~Source~4 := main_~Source~4[7 := 3];main_~Source~4 := main_~Source~4[8 := 4];main_~Source~4 := main_~Source~4[9 := 4];main_~Source~4 := main_~Source~4[10 := 2];main_~Source~4 := main_~Source~4[11 := 2];main_~Source~4 := main_~Source~4[12 := 3];main_~Source~4 := main_~Source~4[13 := 0];main_~Source~4 := main_~Source~4[14 := 0];main_~Source~4 := main_~Source~4[15 := 3];main_~Source~4 := main_~Source~4[16 := 1];main_~Source~4 := main_~Source~4[17 := 2];main_~Source~4 := main_~Source~4[18 := 2];main_~Source~4 := main_~Source~4[19 := 3];main_~Dest~4 := main_~Dest~4[0 := 1];main_~Dest~4 := main_~Dest~4[1 := 3];main_~Dest~4 := main_~Dest~4[2 := 4];main_~Dest~4 := main_~Dest~4[3 := 1];main_~Dest~4 := main_~Dest~4[4 := 1];main_~Dest~4 := main_~Dest~4[5 := 4];main_~Dest~4 := main_~Dest~4[6 := 3];main_~Dest~4 := main_~Dest~4[7 := 4];main_~Dest~4 := main_~Dest~4[8 := 3];main_~Dest~4 := main_~Dest~4[9 := 0];main_~Dest~4 := main_~Dest~4[10 := 0];main_~Dest~4 := main_~Dest~4[11 := 0];main_~Dest~4 := main_~Dest~4[12 := 0];main_~Dest~4 := main_~Dest~4[13 := 2];main_~Dest~4 := main_~Dest~4[14 := 3];main_~Dest~4 := main_~Dest~4[15 := 0];main_~Dest~4 := main_~Dest~4[16 := 2];main_~Dest~4 := main_~Dest~4[17 := 1];main_~Dest~4 := main_~Dest~4[18 := 0];main_~Dest~4 := main_~Dest~4[19 := 4];main_~Weight~4 := main_~Weight~4[0 := 0];main_~Weight~4 := main_~Weight~4[1 := 1];main_~Weight~4 := main_~Weight~4[2 := 2];main_~Weight~4 := main_~Weight~4[3 := 3];main_~Weight~4 := main_~Weight~4[4 := 4];main_~Weight~4 := main_~Weight~4[5 := 5];main_~Weight~4 := main_~Weight~4[6 := 6];main_~Weight~4 := main_~Weight~4[7 := 7];main_~Weight~4 := main_~Weight~4[8 := 8];main_~Weight~4 := main_~Weight~4[9 := 9];main_~Weight~4 := main_~Weight~4[10 := 10];main_~Weight~4 := main_~Weight~4[11 := 11];main_~Weight~4 := main_~Weight~4[12 := 12];main_~Weight~4 := main_~Weight~4[13 := 13];main_~Weight~4 := main_~Weight~4[14 := 14];main_~Weight~4 := main_~Weight~4[15 := 15];main_~Weight~4 := main_~Weight~4[16 := 16];main_~Weight~4 := main_~Weight~4[17 := 17];main_~Weight~4 := main_~Weight~4[18 := 18];main_~Weight~4 := main_~Weight~4[19 := 19];havoc main_~distance~4;havoc main_~x~4;havoc main_~y~4;havoc main_~i~4;havoc main_~j~4;main_~i~4 := 0; {207#(and (<= ULTIMATE.start_main_~i~4 ULTIMATE.start_main_~source~4) (<= ULTIMATE.start_main_~source~4 ULTIMATE.start_main_~i~4))} is VALID [2018-12-18 17:52:03,961 INFO L273 TraceCheckUtils]: 1: Hoare triple {207#(and (<= ULTIMATE.start_main_~i~4 ULTIMATE.start_main_~source~4) (<= ULTIMATE.start_main_~source~4 ULTIMATE.start_main_~i~4))} assume !!(main_~i~4 < main_~nodecount~4);assume !(main_~i~4 == main_~source~4);main_~distance~4 := main_~distance~4[main_~i~4 := ~INFINITY];main_#t~post0 := main_~i~4;main_~i~4 := main_#t~post0 + 1;havoc main_#t~post0; {206#false} is VALID [2018-12-18 17:52:03,961 INFO L273 TraceCheckUtils]: 2: Hoare triple {206#false} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {206#false} is VALID [2018-12-18 17:52:03,961 INFO L273 TraceCheckUtils]: 3: Hoare triple {206#false} assume !(main_~i~4 < main_~nodecount~4);main_~i~4 := 0; {206#false} is VALID [2018-12-18 17:52:03,962 INFO L273 TraceCheckUtils]: 4: Hoare triple {206#false} assume !!(main_~i~4 < main_~edgecount~4);main_~x~4 := main_~Dest~4[main_~i~4];main_~y~4 := main_~Source~4[main_~i~4];assume !(main_~distance~4[main_~x~4] > main_~distance~4[main_~y~4] + main_~Weight~4[main_~i~4]);main_#t~post3 := main_~i~4;main_~i~4 := main_#t~post3 + 1;havoc main_#t~post3; {206#false} is VALID [2018-12-18 17:52:03,962 INFO L273 TraceCheckUtils]: 5: Hoare triple {206#false} assume !(main_~i~4 < main_~edgecount~4);main_~i~4 := 0;assume !!(main_~i~4 < main_~nodecount~4);__VERIFIER_assert_#in~cond := (if main_~distance~4[main_~i~4] >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {206#false} is VALID [2018-12-18 17:52:03,962 INFO L273 TraceCheckUtils]: 6: Hoare triple {206#false} assume !false; {206#false} is VALID [2018-12-18 17:52:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-18 17:52:03,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 17:52:03,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-18 17:52:03,963 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:52:03,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-18 17:52:03,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:03,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-18 17:52:03,996 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:03,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-18 17:52:03,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-18 17:52:03,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 17:52:03,997 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. Second operand 3 states. [2018-12-18 17:52:04,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,026 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2018-12-18 17:52:04,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-18 17:52:04,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-18 17:52:04,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-18 17:52:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-12-18 17:52:04,028 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 11 transitions. [2018-12-18 17:52:04,047 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:04,047 INFO L225 Difference]: With dead ends: 9 [2018-12-18 17:52:04,047 INFO L226 Difference]: Without dead ends: 0 [2018-12-18 17:52:04,048 INFO L631 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 [2018-12-18 17:52:04,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-18 17:52:04,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-18 17:52:04,049 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:04,049 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:04,049 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:04,049 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:04,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,050 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-18 17:52:04,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:04,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:04,051 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:04,051 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:04,051 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:04,051 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-18 17:52:04,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:04,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:04,052 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:04,052 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:04,052 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-18 17:52:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-18 17:52:04,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-18 17:52:04,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:04,053 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-18 17:52:04,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-18 17:52:04,053 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:04,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:04,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-18 17:52:04,239 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 3 176) no Hoare annotation was computed. [2018-12-18 17:52:04,240 INFO L444 ceAbstractionStarter]: At program point L155(lines 155 174) the Hoare annotation is: false [2018-12-18 17:52:04,240 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 175) no Hoare annotation was computed. [2018-12-18 17:52:04,240 INFO L444 ceAbstractionStarter]: At program point L114(lines 97 114) the Hoare annotation is: (and (= ULTIMATE.start_main_~edgecount~4 20) (= ULTIMATE.start_main_~nodecount~4 5) (<= ULTIMATE.start_main_~i~4 ULTIMATE.start_main_~source~4) (<= ULTIMATE.start_main_~source~4 ULTIMATE.start_main_~i~4) (= ULTIMATE.start_main_~i~4 0)) [2018-12-18 17:52:04,241 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 3 176) no Hoare annotation was computed. [2018-12-18 17:52:04,241 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 3 176) no Hoare annotation was computed. [2018-12-18 17:52:04,241 INFO L444 ceAbstractionStarter]: At program point L144(lines 123 145) the Hoare annotation is: false [2018-12-18 17:52:04,241 INFO L444 ceAbstractionStarter]: At program point L173(lines 127 173) the Hoare annotation is: false [2018-12-18 17:52:04,241 INFO L444 ceAbstractionStarter]: At program point L163(lines 106 163) the Hoare annotation is: false [2018-12-18 17:52:04,242 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-12-18 17:52:04,244 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has no Hoare annotation [2018-12-18 17:52:04,244 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-12-18 17:52:04,244 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-12-18 17:52:04,244 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-12-18 17:52:04,250 INFO L202 PluginConnector]: Adding new model eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:52:04 BoogieIcfgContainer [2018-12-18 17:52:04,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-18 17:52:04,252 INFO L168 Benchmark]: Toolchain (without parser) took 5550.92 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 650.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -575.3 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:04,253 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-12-18 17:52:04,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.94 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. [2018-12-18 17:52:04,254 INFO L168 Benchmark]: Boogie Preprocessor took 31.01 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. [2018-12-18 17:52:04,255 INFO L168 Benchmark]: RCFGBuilder took 909.04 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. [2018-12-18 17:52:04,256 INFO L168 Benchmark]: TraceAbstraction took 4559.37 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 650.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -607.0 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:04,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.94 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 31.01 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 909.04 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 4559.37 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 650.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -607.0 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 123]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: (((main_~edgecount~4 == 20 && main_~nodecount~4 == 5) && main_~i~4 <= main_~source~4) && main_~source~4 <= main_~i~4) && main_~i~4 == 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 14 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.0 AbsIntAvgWeakeningVarsNumRemoved, 0.4 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 20 HoareAnnotationTreeSize, 5 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 223 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...