java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007b.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 03:03:46,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 03:03:46,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 03:03:46,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 03:03:46,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 03:03:46,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 03:03:46,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 03:03:46,276 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 03:03:46,301 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 03:03:46,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 03:03:46,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 03:03:46,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 03:03:46,303 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 03:03:46,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 03:03:46,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 03:03:46,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 03:03:46,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 03:03:46,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 03:03:46,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 03:03:46,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 03:03:46,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 03:03:46,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 03:03:46,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 03:03:46,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 03:03:46,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 03:03:46,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 03:03:46,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 03:03:46,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 03:03:46,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 03:03:46,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 03:03:46,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 03:03:46,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 03:03:46,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 03:03:46,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 03:03:46,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 03:03:46,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 03:03:46,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 03:03:46,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 03:03:46,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 03:03:46,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 03:03:46,386 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 03:03:46,387 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 03:03:46,388 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b.i [2019-09-08 03:03:46,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0e1fcd9/fb08e45449584c1780163fbec2545cb8/FLAGc4abf1cdf [2019-09-08 03:03:46,931 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 03:03:46,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b.i [2019-09-08 03:03:46,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0e1fcd9/fb08e45449584c1780163fbec2545cb8/FLAGc4abf1cdf [2019-09-08 03:03:47,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f0e1fcd9/fb08e45449584c1780163fbec2545cb8 [2019-09-08 03:03:47,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 03:03:47,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 03:03:47,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 03:03:47,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 03:03:47,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 03:03:47,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f176706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47, skipping insertion in model container [2019-09-08 03:03:47,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,365 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 03:03:47,379 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 03:03:47,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 03:03:47,553 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 03:03:47,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 03:03:47,583 INFO L192 MainTranslator]: Completed translation [2019-09-08 03:03:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47 WrapperNode [2019-09-08 03:03:47,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 03:03:47,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 03:03:47,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 03:03:47,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 03:03:47,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (1/1) ... [2019-09-08 03:03:47,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 03:03:47,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 03:03:47,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 03:03:47,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 03:03:47,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (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 [2019-09-08 03:03:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 03:03:47,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 03:03:47,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 03:03:47,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 03:03:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 03:03:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 03:03:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 03:03:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 03:03:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 03:03:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 03:03:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 03:03:47,896 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 03:03:47,896 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 03:03:47,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:03:47 BoogieIcfgContainer [2019-09-08 03:03:47,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 03:03:47,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 03:03:47,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 03:03:47,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 03:03:47,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:03:47" (1/3) ... [2019-09-08 03:03:47,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5634d886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:03:47, skipping insertion in model container [2019-09-08 03:03:47,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:03:47" (2/3) ... [2019-09-08 03:03:47,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5634d886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:03:47, skipping insertion in model container [2019-09-08 03:03:47,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:03:47" (3/3) ... [2019-09-08 03:03:47,906 INFO L109 eAbstractionObserver]: Analyzing ICFG gj2007b.i [2019-09-08 03:03:47,918 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 03:03:47,924 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 03:03:47,937 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 03:03:47,966 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 03:03:47,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 03:03:47,967 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 03:03:47,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 03:03:47,967 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 03:03:47,968 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 03:03:47,968 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 03:03:47,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 03:03:47,968 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 03:03:47,985 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-08 03:03:47,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 03:03:47,991 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:03:47,992 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:03:47,994 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:03:47,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:03:47,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2009018560, now seen corresponding path program 1 times [2019-09-08 03:03:48,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:03:48,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:03:48,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:48,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:48,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:48,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 03:03:48,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 03:03:48,093 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 03:03:48,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 03:03:48,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 03:03:48,110 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-09-08 03:03:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:03:48,129 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2019-09-08 03:03:48,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 03:03:48,131 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-08 03:03:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:03:48,138 INFO L225 Difference]: With dead ends: 34 [2019-09-08 03:03:48,139 INFO L226 Difference]: Without dead ends: 16 [2019-09-08 03:03:48,142 INFO L628 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 [2019-09-08 03:03:48,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-08 03:03:48,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-09-08 03:03:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-08 03:03:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-09-08 03:03:48,181 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2019-09-08 03:03:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:03:48,182 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-09-08 03:03:48,182 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 03:03:48,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-09-08 03:03:48,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 03:03:48,183 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:03:48,183 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:03:48,183 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:03:48,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:03:48,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2019177291, now seen corresponding path program 1 times [2019-09-08 03:03:48,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:03:48,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:03:48,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:48,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:48,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 03:03:48,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 03:03:48,396 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 03:03:48,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 03:03:48,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 03:03:48,397 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 5 states. [2019-09-08 03:03:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:03:48,493 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-09-08 03:03:48,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 03:03:48,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-08 03:03:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:03:48,495 INFO L225 Difference]: With dead ends: 27 [2019-09-08 03:03:48,496 INFO L226 Difference]: Without dead ends: 25 [2019-09-08 03:03:48,497 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 03:03:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-08 03:03:48,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2019-09-08 03:03:48,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-08 03:03:48,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-09-08 03:03:48,511 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 10 [2019-09-08 03:03:48,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:03:48,512 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-09-08 03:03:48,512 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 03:03:48,513 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-09-08 03:03:48,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-08 03:03:48,513 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:03:48,514 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:03:48,514 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:03:48,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:03:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1543015754, now seen corresponding path program 1 times [2019-09-08 03:03:48,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:03:48,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:03:48,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:48,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:48,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 03:03:48,613 INFO L223 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 [2019-09-08 03:03:48,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:48,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 03:03:48,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:03:48,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 03:03:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:48,715 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 03:03:48,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-09-08 03:03:48,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 03:03:48,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 03:03:48,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-08 03:03:48,718 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 8 states. [2019-09-08 03:03:48,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:03:48,810 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-09-08 03:03:48,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 03:03:48,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-09-08 03:03:48,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:03:48,814 INFO L225 Difference]: With dead ends: 30 [2019-09-08 03:03:48,817 INFO L226 Difference]: Without dead ends: 26 [2019-09-08 03:03:48,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-08 03:03:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-08 03:03:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2019-09-08 03:03:48,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-08 03:03:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-08 03:03:48,824 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-09-08 03:03:48,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:03:48,824 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-08 03:03:48,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 03:03:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-08 03:03:48,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-08 03:03:48,825 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:03:48,825 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:03:48,826 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:03:48,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:03:48,826 INFO L82 PathProgramCache]: Analyzing trace with hash -595645528, now seen corresponding path program 1 times [2019-09-08 03:03:48,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:03:48,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:03:48,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:48,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:48,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:48,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 03:03:48,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 03:03:48,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 03:03:48,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 03:03:48,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 03:03:48,902 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2019-09-08 03:03:48,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:03:48,998 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2019-09-08 03:03:48,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 03:03:48,998 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2019-09-08 03:03:48,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:03:49,000 INFO L225 Difference]: With dead ends: 31 [2019-09-08 03:03:49,000 INFO L226 Difference]: Without dead ends: 21 [2019-09-08 03:03:49,003 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-09-08 03:03:49,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-08 03:03:49,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-09-08 03:03:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-08 03:03:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2019-09-08 03:03:49,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2019-09-08 03:03:49,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:03:49,011 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2019-09-08 03:03:49,011 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 03:03:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2019-09-08 03:03:49,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-08 03:03:49,012 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:03:49,013 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:03:49,013 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:03:49,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:03:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1695932857, now seen corresponding path program 1 times [2019-09-08 03:03:49,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:03:49,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:03:49,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:49,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:03:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:49,109 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 03:03:49,109 INFO L223 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 [2019-09-08 03:03:49,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:03:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:03:49,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 03:03:49,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:03:49,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 03:03:49,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:03:49,296 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 03:03:49,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 13 [2019-09-08 03:03:49,297 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 03:03:49,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 03:03:49,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-08 03:03:49,298 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 13 states. [2019-09-08 03:03:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:03:49,639 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-09-08 03:03:49,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 03:03:49,640 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 18 [2019-09-08 03:03:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:03:49,640 INFO L225 Difference]: With dead ends: 36 [2019-09-08 03:03:49,640 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 03:03:49,642 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-09-08 03:03:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 03:03:49,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 03:03:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 03:03:49,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 03:03:49,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-08 03:03:49,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:03:49,643 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 03:03:49,643 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 03:03:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 03:03:49,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 03:03:49,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 03:03:49,843 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 03:03:49,843 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 03:03:49,843 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 03:03:49,843 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 03:03:49,843 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 03:03:49,844 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 03:03:49,844 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2019-09-08 03:03:49,844 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2019-09-08 03:03:49,844 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-09-08 03:03:49,844 INFO L439 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (<= 0 main_~m~0)) (.cse1 (<= 0 main_~x~0))) (or (and .cse0 (< main_~m~0 main_~n~0) .cse1) (and (<= main_~n~0 0) .cse0 (<= main_~x~0 0) .cse1) (and .cse0 (<= main_~m~0 0) .cse1))) [2019-09-08 03:03:49,844 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2019-09-08 03:03:49,845 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2019-09-08 03:03:49,845 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2019-09-08 03:03:49,846 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 main_~m~0)) (.cse1 (<= 0 main_~x~0))) (or (and .cse0 (< main_~m~0 main_~n~0) .cse1) (and .cse0 (<= main_~m~0 0) .cse1))) [2019-09-08 03:03:49,847 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 main_~m~0)) (.cse1 (<= 0 main_~x~0))) (or (and .cse0 (< main_~m~0 main_~n~0) .cse1) (and (<= main_~n~0 0) .cse0 (<= main_~x~0 0) .cse1) (and .cse0 (<= main_~m~0 0) .cse1))) [2019-09-08 03:03:49,847 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-08 03:03:49,847 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-08 03:03:49,847 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-08 03:03:49,847 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-08 03:03:49,848 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-08 03:03:49,848 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-08 03:03:49,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 03:03:49 BoogieIcfgContainer [2019-09-08 03:03:49,865 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 03:03:49,869 INFO L168 Benchmark]: Toolchain (without parser) took 2515.95 ms. Allocated memory was 133.2 MB in the beginning and 223.9 MB in the end (delta: 90.7 MB). Free memory was 89.7 MB in the beginning and 138.6 MB in the end (delta: -48.9 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,871 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.23 ms. Allocated memory is still 133.2 MB. Free memory was 89.5 MB in the beginning and 80.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,875 INFO L168 Benchmark]: Boogie Preprocessor took 108.34 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 80.0 MB in the beginning and 175.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,882 INFO L168 Benchmark]: RCFGBuilder took 204.26 ms. Allocated memory is still 198.7 MB. Free memory was 175.3 MB in the beginning and 164.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,884 INFO L168 Benchmark]: TraceAbstraction took 1966.09 ms. Allocated memory was 198.7 MB in the beginning and 223.9 MB in the end (delta: 25.2 MB). Free memory was 164.4 MB in the beginning and 138.6 MB in the end (delta: 25.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. [2019-09-08 03:03:49,894 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 133.2 MB. Free memory was 107.6 MB in the beginning and 107.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 233.23 ms. Allocated memory is still 133.2 MB. Free memory was 89.5 MB in the beginning and 80.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.34 ms. Allocated memory was 133.2 MB in the beginning and 198.7 MB in the end (delta: 65.5 MB). Free memory was 80.0 MB in the beginning and 175.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 204.26 ms. Allocated memory is still 198.7 MB. Free memory was 175.3 MB in the beginning and 164.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1966.09 ms. Allocated memory was 198.7 MB in the beginning and 223.9 MB in the end (delta: 25.2 MB). Free memory was 164.4 MB in the beginning and 138.6 MB in the end (delta: 25.8 MB). Peak memory consumption was 50.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: ((0 <= m && m < n) && 0 <= x) || ((0 <= m && m <= 0) && 0 <= x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 71 SDtfs, 68 SDslu, 207 SDs, 0 SdLazy, 188 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 17 PreInvPairs, 28 NumberOfFragments, 94 HoareAnnotationTreeSize, 17 FomulaSimplifications, 254 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 42 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 3036 SizeOfPredicates, 7 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 5/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...