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_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c372c2b [2018-10-02 12:12:05,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 12:12:05,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 12:12:05,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 12:12:05,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 12:12:05,877 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 12:12:05,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 12:12:05,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 12:12:05,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 12:12:05,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 12:12:05,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-02 12:12:05,884 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-02 12:12:05,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-02 12:12:05,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-02 12:12:05,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-02 12:12:05,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-02 12:12:05,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-02 12:12:05,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-02 12:12:05,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-02 12:12:05,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-02 12:12:05,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-02 12:12:05,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-02 12:12:05,898 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-02 12:12:05,906 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-10-02 12:12:05,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 12:12:05,921 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 12:12:05,922 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 12:12:05,922 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 12:12:05,923 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 12:12:05,923 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 12:12:05,923 INFO L133 SettingsManager]: * Use SBE=true [2018-10-02 12:12:05,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 12:12:05,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 12:12:05,924 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 12:12:05,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 12:12:05,924 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 12:12:05,925 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 12:12:05,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 12:12:05,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 12:12:05,925 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 12:12:05,925 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 12:12:05,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 12:12:05,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 12:12:05,926 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-02 12:12:05,926 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 12:12:05,926 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-02 12:12:05,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 12:12:05,927 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 12:12:05,927 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 12:12:05,927 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 12:12:05,928 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-02 12:12:05,928 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 12:12:05,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 12:12:05,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 12:12:05,928 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-02 12:12:05,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 12:12:05,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 12:12:05,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 12:12:05,992 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 12:12:05,992 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 12:12:05,993 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl [2018-10-02 12:12:05,994 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl' [2018-10-02 12:12:06,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 12:12:06,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 12:12:06,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 12:12:06,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 12:12:06,056 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 12:12:06,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 12:12:06,096 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 12:12:06,096 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 12:12:06,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 12:12:06,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/1) ... [2018-10-02 12:12:06,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 12:12:06,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 12:12:06,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 12:12:06,126 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 12:12:06,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (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 12:12:06,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-02 12:12:06,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-02 12:12:06,428 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-02 12:12:06,428 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:12:06 BoogieIcfgContainer [2018-10-02 12:12:06,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 12:12:06,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-02 12:12:06,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-02 12:12:06,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-02 12:12:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:12:06" (1/2) ... [2018-10-02 12:12:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b3d2de9 and model type gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 12:12:06, skipping insertion in model container [2018-10-02 12:12:06,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:12:06" (2/2) ... [2018-10-02 12:12:06,437 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2.i_4.bpl [2018-10-02 12:12:06,447 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-02 12:12:06,455 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-02 12:12:06,504 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-02 12:12:06,505 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-02 12:12:06,505 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-02 12:12:06,505 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-02 12:12:06,505 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-02 12:12:06,506 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-02 12:12:06,506 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-02 12:12:06,506 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-02 12:12:06,506 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-02 12:12:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-02 12:12:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-02 12:12:06,527 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 12:12:06,528 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-02 12:12:06,529 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 12:12:06,535 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 12:12:06,536 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-02 12:12:06,538 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 12:12:06,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 12:12:06,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:06,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:12:06,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 12:12:06,707 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 12:12:06,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 12:12:06,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 12:12:06,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 12:12:06,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 12:12:06,726 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-02 12:12:06,729 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-02 12:12:06,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 12:12:06,810 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-02 12:12:06,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 12:12:06,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-02 12:12:06,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 12:12:06,834 INFO L225 Difference]: With dead ends: 11 [2018-10-02 12:12:06,835 INFO L226 Difference]: Without dead ends: 7 [2018-10-02 12:12:06,839 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime [2018-10-02 12:12:06,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-02 12:12:06,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-02 12:12:06,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-02 12:12:06,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-02 12:12:06,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-02 12:12:06,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 12:12:06,912 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-02 12:12:06,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 12:12:06,914 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-02 12:12:06,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-02 12:12:06,915 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 12:12:06,915 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-02 12:12:06,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 12:12:06,916 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 12:12:06,916 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-02 12:12:06,916 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 12:12:06,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 12:12:06,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:06,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:12:06,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:06,938 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-02 12:12:06,939 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-02 12:12:06,939 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-02 12:12:06,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:12:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 12:12:06,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 12:12:07,062 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 12:12:07,086 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-02 12:12:07,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-10-02 12:12:07,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-02 12:12:07,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-02 12:12:07,088 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-02 12:12:07,088 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-10-02 12:12:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 12:12:07,194 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-02 12:12:07,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-02 12:12:07,195 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-02 12:12:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 12:12:07,196 INFO L225 Difference]: With dead ends: 11 [2018-10-02 12:12:07,196 INFO L226 Difference]: Without dead ends: 9 [2018-10-02 12:12:07,197 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime [2018-10-02 12:12:07,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-02 12:12:07,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-02 12:12:07,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-02 12:12:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-02 12:12:07,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-02 12:12:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 12:12:07,201 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-02 12:12:07,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-02 12:12:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-02 12:12:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-02 12:12:07,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 12:12:07,202 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-02 12:12:07,202 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 12:12:07,203 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 12:12:07,203 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-10-02 12:12:07,203 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 12:12:07,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 12:12:07,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:07,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:12:07,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:12:07,211 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-02 12:12:07,212 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-02 12:12:07,212 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 (exit command is (exit), workingDir is null) [2018-10-02 12:12:07,227 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-02 12:12:07,257 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-02 12:12:07,257 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-02 12:12:07,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 12:12:09,852 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-02 12:12:09,854 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.internImplication(ImplicationMap.java:181) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.unifyPredicate(ImplicationMap.java:107) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicateInternal(BPredicateUnifier.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.BPredicateUnifier.getOrConstructPredicate(BPredicateUnifier.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:236) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-02 12:12:09,859 INFO L168 Benchmark]: Toolchain (without parser) took 3806.69 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-10-02 12:12:09,863 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:12:09,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:12:09,866 INFO L168 Benchmark]: Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:12:09,866 INFO L168 Benchmark]: RCFGBuilder took 302.85 ms. Allocated memory is still 1.6 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 12:12:09,868 INFO L168 Benchmark]: TraceAbstraction took 3428.58 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-10-02 12:12:09,875 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 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.04 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 302.85 ms. Allocated memory is still 1.6 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 3428.58 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Cannot handle case were solver cannot decide implication of predicates: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.biesenb.ImplicationMap.internImplication(ImplicationMap.java:181) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcd_2.i_4.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-02_12-12-09-898.csv Received shutdown request...