java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-examples/standard_sentinel_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a-m [2018-01-30 00:00:00,758 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:00:00,759 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:00:00,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:00:00,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:00:00,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:00:00,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:00:00,770 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:00:00,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:00:00,772 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:00:00,772 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-01-30 00:00:00,782 INFO L98 SettingsManager]: Beginning loading settings from /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 00:00:00,787 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:00:00,787 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:00:00,787 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:00:00,788 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:00:00,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:00:00,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-30 00:00:00,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:00:00,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:00:00,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:00:00,790 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:00:00,791 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:00:00,791 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:00:00,809 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:00:00,815 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:00:00,817 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:00:00,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:00:00,818 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:00:00,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_sentinel_true-unreach-call_true-termination.i [2018-01-30 00:00:00,881 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:00:00,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 00:00:00,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:00:00,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:00:00,886 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:00:00,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bc0a296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00, skipping insertion in model container [2018-01-30 00:00:00,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,898 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:00:00,906 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:00:00,975 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:00:00,983 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:00:00,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00 WrapperNode [2018-01-30 00:00:00,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:00:00,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:00:00,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:00:00,986 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:00:00,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:00,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:01,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:01,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... [2018-01-30 00:00:01,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:00:01,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:00:01,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:00:01,003 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:00:01,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (1/1) ... No working directory specified, using /home/daniel/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 [2018-01-30 00:00:01,044 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:00:01,044 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:00:01,044 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-01-30 00:00:01,045 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:00:01,045 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:00:01,298 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:00:01,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:00:01 BoogieIcfgContainer [2018-01-30 00:00:01,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:00:01,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:00:01,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:00:01,305 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:00:01,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:00:00" (1/3) ... [2018-01-30 00:00:01,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539cbebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:00:01, skipping insertion in model container [2018-01-30 00:00:01,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:00:00" (2/3) ... [2018-01-30 00:00:01,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539cbebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:00:01, skipping insertion in model container [2018-01-30 00:00:01,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:00:01" (3/3) ... [2018-01-30 00:00:01,307 INFO L107 eAbstractionObserver]: Analyzing ICFG standard_sentinel_true-unreach-call_true-termination.i [2018-01-30 00:00:01,313 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:00:01,317 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-30 00:00:01,345 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:00:01,345 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:00:01,345 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:00:01,345 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:00:01,345 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:00:01,345 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:00:01,345 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:00:01,345 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:00:01,346 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:00:01,359 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-01-30 00:00:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-01-30 00:00:01,363 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:00:01,363 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:00:01,363 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 00:00:01,366 INFO L82 PathProgramCache]: Analyzing trace with hash -486043691, now seen corresponding path program 1 times [2018-01-30 00:00:01,367 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:00:01,367 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:00:01,397 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,398 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:00:01,398 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:00:01,429 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:00:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:00:01,456 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:00:01,456 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 00:00:01,458 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-30 00:00:01,465 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-30 00:00:01,465 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 00:00:01,467 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-01-30 00:00:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:00:01,481 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-01-30 00:00:01,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-30 00:00:01,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-01-30 00:00:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:00:01,489 INFO L225 Difference]: With dead ends: 41 [2018-01-30 00:00:01,489 INFO L226 Difference]: Without dead ends: 22 [2018-01-30 00:00:01,492 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 00:00:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-01-30 00:00:01,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-01-30 00:00:01,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-01-30 00:00:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-01-30 00:00:01,515 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 19 [2018-01-30 00:00:01,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:00:01,515 INFO L432 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-01-30 00:00:01,515 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-30 00:00:01,515 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-01-30 00:00:01,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-01-30 00:00:01,516 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:00:01,517 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:00:01,517 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 00:00:01,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1829437777, now seen corresponding path program 1 times [2018-01-30 00:00:01,517 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:00:01,518 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:00:01,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,518 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:00:01,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:00:01,532 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:00:01,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:00:01,692 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:00:01,692 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 00:00:01,693 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 00:00:01,693 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 00:00:01,693 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 00:00:01,694 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 6 states. [2018-01-30 00:00:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:00:01,809 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-01-30 00:00:01,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:00:01,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-01-30 00:00:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:00:01,810 INFO L225 Difference]: With dead ends: 30 [2018-01-30 00:00:01,810 INFO L226 Difference]: Without dead ends: 25 [2018-01-30 00:00:01,857 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:00:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-30 00:00:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-01-30 00:00:01,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-30 00:00:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-30 00:00:01,860 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 20 [2018-01-30 00:00:01,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:00:01,861 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-30 00:00:01,861 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 00:00:01,861 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-30 00:00:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-30 00:00:01,861 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:00:01,861 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:00:01,861 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 00:00:01,861 INFO L82 PathProgramCache]: Analyzing trace with hash -82444655, now seen corresponding path program 1 times [2018-01-30 00:00:01,862 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:00:01,862 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:00:01,862 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,862 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:00:01,862 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:00:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:00:01,871 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:00:02,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:00:02,185 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 00:00:02,185 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /home/daniel/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 [2018-01-30 00:00:02,192 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:00:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:00:02,207 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 00:00:02,232 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 00:00:02,233 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 00:00:02,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:00:02,237 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-30 00:00:02,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 9 [2018-01-30 00:00:02,265 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 00:00:02,296 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 00:00:02,296 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:11 [2018-01-30 00:00:02,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:00:02,460 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 00:00:02,460 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2018-01-30 00:00:02,460 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-01-30 00:00:02,460 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-01-30 00:00:02,461 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-01-30 00:00:02,461 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 12 states. [2018-01-30 00:00:02,698 WARN L143 SmtUtils]: Spent 104ms on a formula simplification that was a NOOP. DAG size: 14 [2018-01-30 00:00:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:00:02,851 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-01-30 00:00:02,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-01-30 00:00:02,852 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2018-01-30 00:00:02,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:00:02,852 INFO L225 Difference]: With dead ends: 29 [2018-01-30 00:00:02,852 INFO L226 Difference]: Without dead ends: 0 [2018-01-30 00:00:02,853 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2018-01-30 00:00:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-30 00:00:02,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-30 00:00:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-30 00:00:02,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-30 00:00:02,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-01-30 00:00:02,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:00:02,853 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-30 00:00:02,854 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-01-30 00:00:02,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-30 00:00:02,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-30 00:00:02,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-30 00:00:02,899 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 17) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(lines 1 17) the Hoare annotation is: true [2018-01-30 00:00:02,900 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 17) the Hoare annotation is: true [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 17) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L402 ceAbstractionStarter]: At program point L1(lines 1 17) the Hoare annotation is: true [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 17) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L395 ceAbstractionStarter]: At program point L11''(lines 11 13) the Hoare annotation is: (and (= main_~marker~5 (select main_~a~5 main_~pos~5)) (<= 0 main_~pos~5) (<= main_~i~6 main_~pos~5)) [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point L7'(line 7) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L395 ceAbstractionStarter]: At program point L11'''(lines 11 13) the Hoare annotation is: (and (<= 0 main_~pos~5) (<= main_~i~6 main_~pos~5)) [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point L7''(line 7) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point mainFINAL(lines 4 17) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point L6''(line 6) no Hoare annotation was computed. [2018-01-30 00:00:02,900 INFO L399 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L8(lines 8 15) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point mainEXIT(lines 4 17) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L402 ceAbstractionStarter]: At program point mainENTRY(lines 4 17) the Hoare annotation is: true [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L8'(lines 8 15) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L6'(line 6) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L3'(line 3) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 3) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L3'''(line 3) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L399 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2018-01-30 00:00:02,901 INFO L402 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 3) the Hoare annotation is: true [2018-01-30 00:00:02,902 INFO L399 ceAbstractionStarter]: For program point __VERIFIER_assertErr0AssertViolation(line 3) no Hoare annotation was computed. [2018-01-30 00:00:02,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:00:02 BoogieIcfgContainer [2018-01-30 00:00:02,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 00:00:02,907 INFO L168 Benchmark]: Toolchain (without parser) took 2025.03 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 113.5 MB in the beginning and 122.8 MB in the end (delta: -9.2 MB). Peak memory consumption was 45.3 MB. Max. memory is 5.3 GB. [2018-01-30 00:00:02,908 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 148.4 MB. Free memory is still 118.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:00:02,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 102.93 ms. Allocated memory is still 148.4 MB. Free memory was 113.3 MB in the beginning and 105.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:00:02,908 INFO L168 Benchmark]: Boogie Preprocessor took 16.85 ms. Allocated memory is still 148.4 MB. Free memory was 105.3 MB in the beginning and 103.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 5.3 GB. [2018-01-30 00:00:02,908 INFO L168 Benchmark]: RCFGBuilder took 295.29 ms. Allocated memory is still 148.4 MB. Free memory was 103.7 MB in the beginning and 92.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. [2018-01-30 00:00:02,908 INFO L168 Benchmark]: TraceAbstraction took 1607.74 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 92.4 MB in the beginning and 122.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. [2018-01-30 00:00:02,909 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 148.4 MB. Free memory is still 118.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 102.93 ms. Allocated memory is still 148.4 MB. Free memory was 113.3 MB in the beginning and 105.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 16.85 ms. Allocated memory is still 148.4 MB. Free memory was 105.3 MB in the beginning and 103.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 295.29 ms. Allocated memory is still 148.4 MB. Free memory was 103.7 MB in the beginning and 92.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1607.74 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 92.4 MB in the beginning and 122.8 MB in the end (delta: -30.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (marker == a[pos] && 0 <= pos) && i <= pos - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 34 SDslu, 133 SDs, 0 SdLazy, 66 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 15 NumberOfFragments, 24 HoareAnnotationTreeSize, 10 FomulaSimplifications, 59 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 4691 SizeOfPredicates, 4 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/standard_sentinel_true-unreach-call_true-termination.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_00-00-02-914.csv Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/standard_sentinel_true-unreach-call_true-termination.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_00-00-02-914.csv Received shutdown request...