java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c372c2b [2018-10-02 11:41:50,538 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 11:41:50,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 11:41:50,554 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 11:41:50,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 11:41:50,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 11:41:50,557 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 11:41:50,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 11:41:50,561 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 11:41:50,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 11:41:50,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-02 11:41:50,603 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-02 11:41:50,636 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 11:41:50,636 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 11:41:50,637 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 11:41:50,638 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 11:41:50,638 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 11:41:50,638 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 11:41:50,639 INFO L133 SettingsManager]: * Use SBE=true [2018-10-02 11:41:50,639 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 11:41:50,639 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 11:41:50,639 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 11:41:50,639 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 11:41:50,640 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 11:41:50,640 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 11:41:50,640 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 11:41:50,640 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 11:41:50,641 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 11:41:50,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 11:41:50,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 11:41:50,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 11:41:50,644 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-02 11:41:50,644 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 11:41:50,644 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-02 11:41:50,644 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 11:41:50,644 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 11:41:50,645 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 11:41:50,645 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 11:41:50,645 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-02 11:41:50,645 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 11:41:50,645 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 11:41:50,646 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 11:41:50,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 11:41:50,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 11:41:50,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 11:41:50,746 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 11:41:50,747 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 11:41:50,748 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005_variant.c.i_3.bpl [2018-10-02 11:41:50,748 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005_variant.c.i_3.bpl' [2018-10-02 11:41:50,796 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 11:41:50,799 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 11:41:50,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 11:41:50,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 11:41:50,800 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 11:41:50,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 11:41:50,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 11:41:50,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 11:41:50,843 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 11:41:50,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... [2018-10-02 11:41:50,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 11:41:50,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 11:41:50,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 11:41:50,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 11:41:50,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 11:41:50,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-02 11:41:50,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-02 11:41:51,183 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-02 11:41:51,184 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:41:51 BoogieIcfgContainer [2018-10-02 11:41:51,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 11:41:51,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-02 11:41:51,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-02 11:41:51,188 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-02 11:41:51,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 11:41:50" (1/2) ... [2018-10-02 11:41:51,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@768c15e0 and model type cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:41:51, skipping insertion in model container [2018-10-02 11:41:51,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:41:51" (2/2) ... [2018-10-02 11:41:51,193 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.c.i_3.bpl [2018-10-02 11:41:51,203 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-02 11:41:51,211 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-02 11:41:51,262 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-02 11:41:51,263 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-02 11:41:51,263 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-02 11:41:51,263 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-02 11:41:51,263 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-02 11:41:51,264 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-02 11:41:51,264 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-02 11:41:51,264 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-02 11:41:51,264 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-02 11:41:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-02 11:41:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-02 11:41:51,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:41:51,284 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-02 11:41:51,285 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:41:51,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:41:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-02 11:41:51,294 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:41:51,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:41:51,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:51,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:41:51,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:41:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:41:51,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 11:41:51,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 11:41:51,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 11:41:51,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 11:41:51,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:41:51,476 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-02 11:41:51,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:41:51,503 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-02 11:41:51,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 11:41:51,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-02 11:41:51,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:41:51,516 INFO L225 Difference]: With dead ends: 11 [2018-10-02 11:41:51,517 INFO L226 Difference]: Without dead ends: 7 [2018-10-02 11:41:51,520 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-02 11:41:51,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-02 11:41:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-02 11:41:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-02 11:41:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-02 11:41:51,558 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-02 11:41:51,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:41:51,559 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-02 11:41:51,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 11:41:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-02 11:41:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-02 11:41:51,560 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:41:51,560 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-02 11:41:51,560 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:41:51,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:41:51,561 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-02 11:41:51,561 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:41:51,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:41:51,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:51,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:41:51,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:41:51,957 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-02 11:41:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:41:51,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-02 11:41:51,959 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-02 11:41:51,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:41:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:41:52,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 11:41:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:41:52,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-02 11:41:52,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-10-02 11:41:52,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-02 11:41:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-02 11:41:52,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-02 11:41:52,235 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-10-02 11:41:52,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:41:52,294 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-02 11:41:52,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-02 11:41:52,295 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-10-02 11:41:52,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:41:52,296 INFO L225 Difference]: With dead ends: 11 [2018-10-02 11:41:52,296 INFO L226 Difference]: Without dead ends: 9 [2018-10-02 11:41:52,297 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-02 11:41:52,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-02 11:41:52,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-02 11:41:52,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-02 11:41:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-02 11:41:52,302 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-02 11:41:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:41:52,302 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-02 11:41:52,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-02 11:41:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-02 11:41:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-02 11:41:52,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 11:41:52,303 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-02 11:41:52,304 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 11:41:52,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-02 11:41:52,304 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-10-02 11:41:52,304 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 11:41:52,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 11:41:52,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:52,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 11:41:52,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 11:41:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 11:41:52,549 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-02 11:41:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-02 11:41:52,551 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-02 11:41:52,552 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-02 11:41:52,564 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-02 11:41:52,585 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-02 11:41:52,585 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-02 11:41:52,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 11:41:52,745 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 11:41:52,766 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-02 11:41:52,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2018-10-02 11:41:52,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-02 11:41:52,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-02 11:41:52,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-02 11:41:52,768 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2018-10-02 11:41:52,918 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-10-02 11:41:53,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 11:41:53,223 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-02 11:41:53,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-02 11:41:53,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-10-02 11:41:53,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 11:41:53,224 INFO L225 Difference]: With dead ends: 11 [2018-10-02 11:41:53,224 INFO L226 Difference]: Without dead ends: 0 [2018-10-02 11:41:53,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-02 11:41:53,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-02 11:41:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-02 11:41:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-02 11:41:53,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-02 11:41:53,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-10-02 11:41:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 11:41:53,229 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-02 11:41:53,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-02 11:41:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-02 11:41:53,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-02 11:41:53,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-02 11:41:53,434 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 43) no Hoare annotation was computed. [2018-10-02 11:41:53,435 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 44) no Hoare annotation was computed. [2018-10-02 11:41:53,435 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 44) no Hoare annotation was computed. [2018-10-02 11:41:53,435 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 44) no Hoare annotation was computed. [2018-10-02 11:41:53,436 INFO L421 ceAbstractionStarter]: At program point L25(lines 25 36) the Hoare annotation is: (let ((.cse0 (+ (* 2 ULTIMATE.start_main_~mid~5) ULTIMATE.start_main_~lo~5))) (and (<= ULTIMATE.start_main_~lo~5 ULTIMATE.start_main_~hi~5) (<= ULTIMATE.start_main_~hi~5 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~5))) [2018-10-02 11:41:53,436 INFO L421 ceAbstractionStarter]: At program point L41(lines 22 41) the Hoare annotation is: (let ((.cse0 (+ (* 2 ULTIMATE.start_main_~mid~5) ULTIMATE.start_main_~lo~5))) (and (<= ULTIMATE.start_main_~lo~5 ULTIMATE.start_main_~hi~5) (<= ULTIMATE.start_main_~hi~5 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~5))) [2018-10-02 11:41:53,436 INFO L421 ceAbstractionStarter]: At program point L35(lines 35 42) the Hoare annotation is: false [2018-10-02 11:41:53,447 INFO L202 PluginConnector]: Adding new model cggmp2005_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:41:53 BoogieIcfgContainer [2018-10-02 11:41:53,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-02 11:41:53,449 INFO L168 Benchmark]: Toolchain (without parser) took 2652.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-02 11:41:53,450 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:41:53,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:41:53,451 INFO L168 Benchmark]: Boogie Preprocessor took 24.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 11:41:53,452 INFO L168 Benchmark]: RCFGBuilder took 316.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-02 11:41:53,453 INFO L168 Benchmark]: TraceAbstraction took 2262.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2018-10-02 11:41:53,457 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.90 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 316.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2262.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 35]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (main_~lo~5 <= main_~hi~5 && main_~hi~5 <= 2 * main_~mid~5 + main_~lo~5) && 2 * main_~mid~5 + main_~lo~5 <= main_~hi~5 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (main_~lo~5 <= main_~hi~5 && main_~hi~5 <= 2 * main_~mid~5 + main_~lo~5) && 2 * main_~mid~5 + main_~lo~5 <= main_~hi~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 28 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 37 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 146 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 1831 SizeOfPredicates, 10 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 2/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-02_11-41-53-469.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/cggmp2005_variant.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-02_11-41-53-469.csv Received shutdown request...