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/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 19:54:33,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 19:54:33,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 19:54:33,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 19:54:33,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 19:54:33,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 19:54:33,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 19:54:33,711 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 [2019-09-03 19:54:33,725 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 19:54:33,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 19:54:33,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 19:54:33,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 19:54:33,727 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 19:54:33,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 19:54:33,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 19:54:33,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 19:54:33,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 19:54:33,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 19:54:33,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 19:54:33,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 19:54:33,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 19:54:33,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 19:54:33,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 19:54:33,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 19:54:33,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 19:54:33,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 19:54:33,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 19:54:33,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 19:54:33,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 19:54:33,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 19:54:33,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 19:54:33,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 19:54:33,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 19:54:33,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 19:54:33,783 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 19:54:33,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 19:54:33,787 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 19:54:33,788 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-09-03 19:54:33,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ec3b47/3f3787188fbf4b218a43db0099e5052c/FLAG4876cd9a9 [2019-09-03 19:54:34,281 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 19:54:34,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2019-09-03 19:54:34,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ec3b47/3f3787188fbf4b218a43db0099e5052c/FLAG4876cd9a9 [2019-09-03 19:54:34,658 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/375ec3b47/3f3787188fbf4b218a43db0099e5052c [2019-09-03 19:54:34,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 19:54:34,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 19:54:34,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 19:54:34,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 19:54:34,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 19:54:34,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:34,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374b1c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34, skipping insertion in model container [2019-09-03 19:54:34,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:34,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 19:54:34,709 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 19:54:34,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:54:34,928 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 19:54:34,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:54:34,955 INFO L192 MainTranslator]: Completed translation [2019-09-03 19:54:34,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34 WrapperNode [2019-09-03 19:54:34,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 19:54:34,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 19:54:34,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 19:54:34,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 19:54:35,061 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (1/1) ... [2019-09-03 19:54:35,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 19:54:35,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 19:54:35,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 19:54:35,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 19:54:35,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (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 [2019-09-03 19:54:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 19:54:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 19:54:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 19:54:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 19:54:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 19:54:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 19:54:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 19:54:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 19:54:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 19:54:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 19:54:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 19:54:35,320 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 19:54:35,324 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 19:54:35,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:54:35 BoogieIcfgContainer [2019-09-03 19:54:35,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 19:54:35,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 19:54:35,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 19:54:35,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 19:54:35,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 07:54:34" (1/3) ... [2019-09-03 19:54:35,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110c18df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:54:35, skipping insertion in model container [2019-09-03 19:54:35,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:54:34" (2/3) ... [2019-09-03 19:54:35,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110c18df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:54:35, skipping insertion in model container [2019-09-03 19:54:35,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:54:35" (3/3) ... [2019-09-03 19:54:35,349 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-09-03 19:54:35,364 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 19:54:35,373 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 19:54:35,397 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 19:54:35,453 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 19:54:35,454 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 19:54:35,454 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 19:54:35,456 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 19:54:35,456 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 19:54:35,456 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 19:54:35,457 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 19:54:35,457 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 19:54:35,457 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 19:54:35,471 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-03 19:54:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-03 19:54:35,476 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:54:35,477 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:54:35,479 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:54:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:54:35,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1772153714, now seen corresponding path program 1 times [2019-09-03 19:54:35,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:54:35,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:54:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:35,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:54:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:54:35,814 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2019-09-03 19:54:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:35,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:54:35,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-03 19:54:35,951 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-03 19:54:35,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-03 19:54:35,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-03 19:54:35,969 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 7 states. [2019-09-03 19:54:36,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:54:36,216 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-09-03 19:54:36,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-03 19:54:36,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-09-03 19:54:36,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:54:36,228 INFO L225 Difference]: With dead ends: 47 [2019-09-03 19:54:36,229 INFO L226 Difference]: Without dead ends: 15 [2019-09-03 19:54:36,234 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-03 19:54:36,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-03 19:54:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-03 19:54:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-03 19:54:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-09-03 19:54:36,288 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-09-03 19:54:36,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:54:36,289 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-09-03 19:54:36,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-03 19:54:36,289 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-09-03 19:54:36,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-03 19:54:36,291 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:54:36,291 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:54:36,292 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:54:36,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:54:36,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1871056931, now seen corresponding path program 1 times [2019-09-03 19:54:36,294 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:54:36,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:54:36,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:36,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:54:36,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:54:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:36,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 19:54:36,530 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 [2019-09-03 19:54:36,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:54:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:54:36,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-03 19:54:36,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 19:54:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:36,783 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-03 19:54:36,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-09-03 19:54:36,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-03 19:54:36,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-03 19:54:36,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-09-03 19:54:36,785 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 14 states. [2019-09-03 19:54:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:54:36,926 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-09-03 19:54:36,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-03 19:54:36,927 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2019-09-03 19:54:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:54:36,928 INFO L225 Difference]: With dead ends: 22 [2019-09-03 19:54:36,928 INFO L226 Difference]: Without dead ends: 16 [2019-09-03 19:54:36,930 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2019-09-03 19:54:36,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-03 19:54:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-09-03 19:54:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-03 19:54:36,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-09-03 19:54:36,934 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2019-09-03 19:54:36,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:54:36,935 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-09-03 19:54:36,935 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-03 19:54:36,935 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-09-03 19:54:36,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-03 19:54:36,936 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:54:36,936 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:54:36,936 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:54:36,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:54:36,937 INFO L82 PathProgramCache]: Analyzing trace with hash -642089362, now seen corresponding path program 2 times [2019-09-03 19:54:36,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:54:36,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:54:36,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:36,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:54:36,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:54:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:37,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 19:54:37,130 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) [2019-09-03 19:54:37,145 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 19:54:37,159 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-03 19:54:37,159 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-03 19:54:37,162 WARN L254 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 28 conjunts are in the unsatisfiable core [2019-09-03 19:54:37,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 19:54:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:37,325 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-03 19:54:37,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-09-03 19:54:37,325 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-03 19:54:37,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-03 19:54:37,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-09-03 19:54:37,326 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 16 states. [2019-09-03 19:54:37,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:54:37,501 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-09-03 19:54:37,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-03 19:54:37,501 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 15 [2019-09-03 19:54:37,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:54:37,503 INFO L225 Difference]: With dead ends: 26 [2019-09-03 19:54:37,503 INFO L226 Difference]: Without dead ends: 18 [2019-09-03 19:54:37,504 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2019-09-03 19:54:37,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-03 19:54:37,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-03 19:54:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-03 19:54:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-03 19:54:37,511 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-09-03 19:54:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:54:37,511 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-03 19:54:37,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-03 19:54:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-03 19:54:37,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-03 19:54:37,513 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:54:37,513 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:54:37,513 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:54:37,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:54:37,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1276972978, now seen corresponding path program 3 times [2019-09-03 19:54:37,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:54:37,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:54:37,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:37,516 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-03 19:54:37,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:54:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:54:37,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-03 19:54:37,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 19:54:37,756 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 19:54:37,772 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-03 19:54:37,788 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-03 19:54:37,788 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-03 19:54:37,790 WARN L254 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 40 conjunts are in the unsatisfiable core [2019-09-03 19:54:37,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 19:54:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:54:38,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-03 19:54:38,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-09-03 19:54:38,010 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-03 19:54:38,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-03 19:54:38,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2019-09-03 19:54:38,012 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 19 states. [2019-09-03 19:54:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:54:38,230 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-09-03 19:54:38,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-03 19:54:38,230 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-09-03 19:54:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:54:38,231 INFO L225 Difference]: With dead ends: 21 [2019-09-03 19:54:38,231 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 19:54:38,232 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2019-09-03 19:54:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 19:54:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 19:54:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 19:54:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 19:54:38,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-03 19:54:38,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:54:38,233 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 19:54:38,234 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-03 19:54:38,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 19:54:38,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 19:54:38,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-03 19:54:38,344 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-03 19:54:38,345 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:54:38,345 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-03 19:54:38,346 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-03 19:54:38,347 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-03 19:54:38,347 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-03 19:54:38,347 INFO L439 ceAbstractionStarter]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0))) [2019-09-03 19:54:38,347 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2019-09-03 19:54:38,347 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-09-03 19:54:38,348 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-09-03 19:54:38,348 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-09-03 19:54:38,348 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2019-09-03 19:54:38,348 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2019-09-03 19:54:38,348 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-09-03 19:54:38,348 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-09-03 19:54:38,349 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-03 19:54:38,349 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-03 19:54:38,349 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-03 19:54:38,349 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-03 19:54:38,349 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-03 19:54:38,349 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-03 19:54:38,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 07:54:38 BoogieIcfgContainer [2019-09-03 19:54:38,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 19:54:38,372 INFO L168 Benchmark]: Toolchain (without parser) took 3696.03 ms. Allocated memory was 140.0 MB in the beginning and 261.6 MB in the end (delta: 121.6 MB). Free memory was 87.7 MB in the beginning and 182.8 MB in the end (delta: -95.1 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,373 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.02 ms. Allocated memory is still 140.0 MB. Free memory was 87.5 MB in the beginning and 78.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,378 INFO L168 Benchmark]: Boogie Preprocessor took 121.70 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 78.3 MB in the beginning and 176.8 MB in the end (delta: -98.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,379 INFO L168 Benchmark]: RCFGBuilder took 247.41 ms. Allocated memory is still 199.2 MB. Free memory was 176.8 MB in the beginning and 164.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,381 INFO L168 Benchmark]: TraceAbstraction took 3041.77 ms. Allocated memory was 199.2 MB in the beginning and 261.6 MB in the end (delta: 62.4 MB). Free memory was 164.4 MB in the beginning and 182.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2019-09-03 19:54:38,391 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 140.0 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 281.02 ms. Allocated memory is still 140.0 MB. Free memory was 87.5 MB in the beginning and 78.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.70 ms. Allocated memory was 140.0 MB in the beginning and 199.2 MB in the end (delta: 59.2 MB). Free memory was 78.3 MB in the beginning and 176.8 MB in the end (delta: -98.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.41 ms. Allocated memory is still 199.2 MB. Free memory was 176.8 MB in the beginning and 164.4 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3041.77 ms. Allocated memory was 199.2 MB in the beginning and 261.6 MB in the end (delta: 62.4 MB). Free memory was 164.4 MB in the beginning and 182.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 44.0 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: 19]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 40 SDslu, 325 SDs, 0 SdLazy, 325 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 24 NumberOfFragments, 33 HoareAnnotationTreeSize, 13 FomulaSimplifications, 44 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 9643 SizeOfPredicates, 15 NumberOfNonLiveVariables, 169 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...