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/hhk2008.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d19836b [2018-09-26 21:21:45,788 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 21:21:45,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 21:21:45,803 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 21:21:45,804 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 21:21:45,805 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 21:21:45,806 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 21:21:45,808 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 21:21:45,809 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 21:21:45,810 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 21:21:45,811 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 21:21:45,836 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-26 21:21:45,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 21:21:45,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 21:21:45,851 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-26 21:21:45,852 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-26 21:21:45,852 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-26 21:21:45,852 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-26 21:21:45,853 INFO L133 SettingsManager]: * Use SBE=true [2018-09-26 21:21:45,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-26 21:21:45,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-26 21:21:45,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-26 21:21:45,853 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-26 21:21:45,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-26 21:21:45,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-26 21:21:45,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-26 21:21:45,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-26 21:21:45,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-26 21:21:45,855 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-26 21:21:45,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-26 21:21:45,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 21:21:45,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-26 21:21:45,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-26 21:21:45,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-26 21:21:45,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:21:45,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 21:21:45,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-26 21:21:45,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-26 21:21:45,857 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-26 21:21:45,857 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 21:21:45,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-26 21:21:45,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 21:21:45,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 21:21:45,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 21:21:45,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 21:21:45,928 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 21:21:45,929 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 21:21:45,930 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/hhk2008.c.i_3.bpl [2018-09-26 21:21:45,930 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/hhk2008.c.i_3.bpl' [2018-09-26 21:21:45,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 21:21:45,988 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 21:21:45,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 21:21:45,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 21:21:45,989 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 21:21:46,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 21:21:46,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 21:21:46,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 21:21:46,033 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 21:21:46,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... [2018-09-26 21:21:46,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 21:21:46,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 21:21:46,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 21:21:46,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 21:21:46,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-26 21:21:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 21:21:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 21:21:46,340 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 21:21:46,341 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:21:46 BoogieIcfgContainer [2018-09-26 21:21:46,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 21:21:46,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 21:21:46,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 21:21:46,347 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 21:21:46,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:21:45" (1/2) ... [2018-09-26 21:21:46,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222c2147 and model type hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:21:46, skipping insertion in model container [2018-09-26 21:21:46,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:21:46" (2/2) ... [2018-09-26 21:21:46,351 INFO L112 eAbstractionObserver]: Analyzing ICFG hhk2008.c.i_3.bpl [2018-09-26 21:21:46,361 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-26 21:21:46,370 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 21:21:46,423 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 21:21:46,424 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 21:21:46,424 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 21:21:46,424 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-26 21:21:46,424 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 21:21:46,425 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 21:21:46,425 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 21:21:46,425 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 21:21:46,425 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 21:21:46,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 21:21:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 21:21:46,456 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:46,457 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 21:21:46,459 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:46,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:46,467 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-26 21:21:46,470 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:46,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:46,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:46,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:46,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:47,044 WARN L178 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-26 21:21:47,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:47,049 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 21:21:47,049 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 21:21:47,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 21:21:47,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 21:21:47,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:21:47,067 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-26 21:21:47,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:47,095 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 21:21:47,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 21:21:47,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-26 21:21:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:47,110 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:21:47,110 INFO L226 Difference]: Without dead ends: 7 [2018-09-26 21:21:47,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 21:21:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-26 21:21:47,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-26 21:21:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 21:21:47,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 21:21:47,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 21:21:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:47,156 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 21:21:47,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 21:21:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 21:21:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 21:21:47,157 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:47,157 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 21:21:47,157 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:47,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:47,158 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-26 21:21:47,158 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:47,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:47,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:47,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:47,395 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-26 21:21:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:47,398 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:47,398 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-26 21:21:47,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:47,453 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:47,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:47,609 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:47,610 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-09-26 21:21:47,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 21:21:47,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 21:21:47,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 21:21:47,611 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-09-26 21:21:47,762 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-26 21:21:47,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:47,806 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-09-26 21:21:47,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 21:21:47,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-26 21:21:47,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:47,808 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:21:47,808 INFO L226 Difference]: Without dead ends: 9 [2018-09-26 21:21:47,810 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-26 21:21:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-09-26 21:21:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-09-26 21:21:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-26 21:21:47,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-26 21:21:47,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-26 21:21:47,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:47,821 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-26 21:21:47,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 21:21:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-26 21:21:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-26 21:21:47,822 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 21:21:47,823 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-26 21:21:47,823 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 21:21:47,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 21:21:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-09-26 21:21:47,824 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-26 21:21:47,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-26 21:21:47,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-26 21:21:47,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-26 21:21:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 21:21:48,125 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-26 21:21:48,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:48,129 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-26 21:21:48,129 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 [2018-09-26 21:21:48,144 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-26 21:21:48,185 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-26 21:21:48,185 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-26 21:21:48,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-26 21:21:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 21:21:48,490 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-26 21:21:48,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-09-26 21:21:48,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 21:21:48,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 21:21:48,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-26 21:21:48,492 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2018-09-26 21:21:48,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 21:21:48,881 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 21:21:48,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 21:21:48,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-09-26 21:21:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 21:21:48,884 INFO L225 Difference]: With dead ends: 11 [2018-09-26 21:21:48,884 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 21:21:48,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-26 21:21:48,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 21:21:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 21:21:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 21:21:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 21:21:48,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-09-26 21:21:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 21:21:48,886 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 21:21:48,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 21:21:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 21:21:48,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 21:21:48,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 21:21:49,043 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 48) no Hoare annotation was computed. [2018-09-26 21:21:49,043 INFO L422 ceAbstractionStarter]: At program point L30(lines 30 41) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~res~5 ULTIMATE.start_main_~cnt~5)) (.cse0 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5))) (and (<= .cse0 .cse1) (< ULTIMATE.start_main_~res~5 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5 1)) (<= .cse1 .cse0))) [2018-09-26 21:21:49,044 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 48) no Hoare annotation was computed. [2018-09-26 21:21:49,044 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 48) no Hoare annotation was computed. [2018-09-26 21:21:49,044 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 47) no Hoare annotation was computed. [2018-09-26 21:21:49,044 INFO L422 ceAbstractionStarter]: At program point L45(lines 27 45) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~res~5 ULTIMATE.start_main_~cnt~5)) (.cse0 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5))) (and (<= .cse0 .cse1) (< ULTIMATE.start_main_~res~5 (+ ULTIMATE.start_main_~b~5 ULTIMATE.start_main_~a~5 1)) (<= .cse1 .cse0))) [2018-09-26 21:21:49,044 INFO L422 ceAbstractionStarter]: At program point L40(lines 40 46) the Hoare annotation is: false [2018-09-26 21:21:49,054 INFO L202 PluginConnector]: Adding new model hhk2008.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:21:49 BoogieIcfgContainer [2018-09-26 21:21:49,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 21:21:49,055 INFO L168 Benchmark]: Toolchain (without parser) took 3070.71 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Peak memory consumption was 119.0 MB. Max. memory is 7.1 GB. [2018-09-26 21:21:49,057 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:21:49,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.10 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:21:49,058 INFO L168 Benchmark]: Boogie Preprocessor took 20.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 21:21:49,059 INFO L168 Benchmark]: RCFGBuilder took 289.41 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 21:21:49,060 INFO L168 Benchmark]: TraceAbstraction took 2711.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-09-26 21:21:49,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.10 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 20.27 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 289.41 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2711.25 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: 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: 27]: Loop Invariant Derived loop invariant: (main_~b~5 + main_~a~5 <= main_~res~5 + main_~cnt~5 && main_~res~5 < main_~b~5 + main_~a~5 + 1) && main_~res~5 + main_~cnt~5 <= main_~b~5 + main_~a~5 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (main_~b~5 + main_~a~5 <= main_~res~5 + main_~cnt~5 && main_~res~5 < main_~b~5 + main_~a~5 + 1) && main_~res~5 + main_~cnt~5 <= main_~b~5 + main_~a~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 14 SDs, 0 SdLazy, 25 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s 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, 43 HoareAnnotationTreeSize, 3 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 136 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1991 SizeOfPredicates, 12 NumberOfNonLiveVariables, 62 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/16 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/hhk2008.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_21-21-49-077.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/hhk2008.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_21-21-49-077.csv Received shutdown request...