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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-lit/bhmr2007.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:05:20,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:05:20,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:05:20,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:05:20,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:05:20,346 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:05:20,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:05:20,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:05:20,347 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:05:20,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:05:20,348 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:05:20,348 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:05:20,348 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:05:20,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:05:20,349 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:05:20,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:05:20,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:05:20,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:05:20,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:05:20,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:05:20,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:05:20,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:05:20,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:05:20,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:05:20,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:05:20,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:05:20,352 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:05:20,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:05:20,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:05:20,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:05:20,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:05:20,353 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:05:20,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:05:20,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:05:20,353 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:05:20,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:05:20,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:05:20,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:05:20,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:05:20,397 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:05:20,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/bhmr2007.i [2019-09-10 02:05:20,455 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3862394/39132635f93048198c1f048b6a8e0b5d/FLAG841ea196e [2019-09-10 02:05:20,839 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:05:20,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/bhmr2007.i [2019-09-10 02:05:20,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3862394/39132635f93048198c1f048b6a8e0b5d/FLAG841ea196e [2019-09-10 02:05:21,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc3862394/39132635f93048198c1f048b6a8e0b5d [2019-09-10 02:05:21,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:05:21,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:05:21,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:05:21,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:05:21,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:05:21,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26862a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21, skipping insertion in model container [2019-09-10 02:05:21,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,246 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:05:21,261 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:05:21,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:05:21,482 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:05:21,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:05:21,518 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:05:21,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21 WrapperNode [2019-09-10 02:05:21,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:05:21,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:05:21,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:05:21,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:05:21,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (1/1) ... [2019-09-10 02:05:21,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:05:21,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:05:21,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:05:21,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:05:21,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (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 [2019-09-10 02:05:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:05:21,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:05:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 02:05:21,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:05:21,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:05:21,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:05:21,911 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:05:21,915 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-10 02:05:21,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:05:21 BoogieIcfgContainer [2019-09-10 02:05:21,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:05:21,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:05:21,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:05:21,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:05:21,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:05:21" (1/3) ... [2019-09-10 02:05:21,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c28e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:05:21, skipping insertion in model container [2019-09-10 02:05:21,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:05:21" (2/3) ... [2019-09-10 02:05:21,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c28e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:05:21, skipping insertion in model container [2019-09-10 02:05:21,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:05:21" (3/3) ... [2019-09-10 02:05:21,942 INFO L109 eAbstractionObserver]: Analyzing ICFG bhmr2007.i [2019-09-10 02:05:21,969 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:05:21,983 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:05:22,023 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:05:22,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:05:22,058 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:05:22,058 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:05:22,058 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:05:22,058 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:05:22,058 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:05:22,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:05:22,058 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:05:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-10 02:05:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 02:05:22,078 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:05:22,079 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:05:22,081 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:05:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash 439143249, now seen corresponding path program 1 times [2019-09-10 02:05:22,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:05:22,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:22,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,132 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:05:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:22,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:22,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:05:22,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:05:22,199 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:05:22,203 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:05:22,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:05:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:05:22,219 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-09-10 02:05:22,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:05:22,232 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-09-10 02:05:22,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:05:22,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-09-10 02:05:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:05:22,241 INFO L225 Difference]: With dead ends: 21 [2019-09-10 02:05:22,241 INFO L226 Difference]: Without dead ends: 14 [2019-09-10 02:05:22,243 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 [2019-09-10 02:05:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-10 02:05:22,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-10 02:05:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-10 02:05:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-09-10 02:05:22,277 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-09-10 02:05:22,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:05:22,277 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-09-10 02:05:22,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:05:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-09-10 02:05:22,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-10 02:05:22,278 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:05:22,278 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:05:22,279 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:05:22,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:22,279 INFO L82 PathProgramCache]: Analyzing trace with hash 428984518, now seen corresponding path program 1 times [2019-09-10 02:05:22,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:05:22,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:22,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,281 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:05:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:22,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:05:22,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:05:22,507 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:05:22,509 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:05:22,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:05:22,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:05:22,512 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 7 states. [2019-09-10 02:05:22,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:05:22,591 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-09-10 02:05:22,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:05:22,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-09-10 02:05:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:05:22,595 INFO L225 Difference]: With dead ends: 19 [2019-09-10 02:05:22,595 INFO L226 Difference]: Without dead ends: 16 [2019-09-10 02:05:22,596 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:05:22,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-09-10 02:05:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-09-10 02:05:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-10 02:05:22,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-09-10 02:05:22,601 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 11 [2019-09-10 02:05:22,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:05:22,601 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-09-10 02:05:22,601 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:05:22,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-09-10 02:05:22,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-10 02:05:22,602 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:05:22,603 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:05:22,603 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:05:22,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:22,603 INFO L82 PathProgramCache]: Analyzing trace with hash -277157879, now seen corresponding path program 1 times [2019-09-10 02:05:22,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:05:22,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:22,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:22,605 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:05:22,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:22,830 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:05:22,830 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:05:22,832 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2019-09-10 02:05:22,834 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [15], [17], [20], [24], [31], [34], [36], [42], [43], [44], [46] [2019-09-10 02:05:22,876 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:05:22,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:05:23,067 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 02:05:23,070 INFO L272 AbstractInterpreter]: Visited 14 different actions 54 times. Merged at 4 different actions 20 times. Widened at 1 different actions 3 times. Performed 114 root evaluator evaluations with a maximum evaluation depth of 5. Performed 114 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 6 variables. [2019-09-10 02:05:23,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:23,075 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 02:05:23,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:05:23,076 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2019-09-10 02:05:23,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:23,104 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:05:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:23,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 02:05:23,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:05:23,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:05:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:23,356 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:05:23,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:05:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:23,480 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:05:23,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2019-09-10 02:05:23,480 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:05:23,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:05:23,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:05:23,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:05:23,483 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 16 states. [2019-09-10 02:05:23,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:05:23,753 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-09-10 02:05:23,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 02:05:23,753 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 14 [2019-09-10 02:05:23,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:05:23,754 INFO L225 Difference]: With dead ends: 26 [2019-09-10 02:05:23,755 INFO L226 Difference]: Without dead ends: 22 [2019-09-10 02:05:23,755 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2019-09-10 02:05:23,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-10 02:05:23,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-09-10 02:05:23,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-10 02:05:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-09-10 02:05:23,759 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2019-09-10 02:05:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:05:23,760 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-09-10 02:05:23,760 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:05:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-09-10 02:05:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 02:05:23,761 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:05:23,761 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:05:23,761 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:05:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:23,762 INFO L82 PathProgramCache]: Analyzing trace with hash -608518108, now seen corresponding path program 1 times [2019-09-10 02:05:23,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:05:23,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:23,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:23,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:05:23,763 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:05:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:05:23,984 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:05:23,984 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:05:23,984 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-10 02:05:23,985 INFO L207 CegarAbsIntRunner]: [0], [4], [8], [15], [17], [20], [22], [24], [31], [34], [36], [42], [43], [44], [46] [2019-09-10 02:05:23,988 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:05:23,988 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:05:24,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 02:05:24,085 INFO L272 AbstractInterpreter]: Visited 15 different actions 95 times. Merged at 5 different actions 40 times. Widened at 1 different actions 6 times. Performed 231 root evaluator evaluations with a maximum evaluation depth of 5. Performed 231 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 10 fixpoints after 2 different actions. Largest state had 6 variables. [2019-09-10 02:05:24,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:05:24,086 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 02:05:24,086 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:05:24,086 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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) [2019-09-10 02:05:24,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:05:24,102 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:05:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:05:24,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-10 02:05:24,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:05:24,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:05:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:05:24,325 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:05:24,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:05:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:05:24,441 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:05:24,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 22 [2019-09-10 02:05:24,441 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:05:24,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 02:05:24,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 02:05:24,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:05:24,443 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 19 states. [2019-09-10 02:05:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:05:24,917 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-09-10 02:05:24,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 02:05:24,918 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-09-10 02:05:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:05:24,918 INFO L225 Difference]: With dead ends: 26 [2019-09-10 02:05:24,918 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:05:24,920 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 02:05:24,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:05:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:05:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:05:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:05:24,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-10 02:05:24,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:05:24,921 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:05:24,922 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 02:05:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:05:24,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:05:24,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:05:24 BoogieIcfgContainer [2019-09-10 02:05:24,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:05:24,928 INFO L168 Benchmark]: Toolchain (without parser) took 3698.43 ms. Allocated memory was 140.0 MB in the beginning and 257.4 MB in the end (delta: 117.4 MB). Free memory was 88.3 MB in the beginning and 177.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,929 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,930 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.05 ms. Allocated memory is still 140.0 MB. Free memory was 87.9 MB in the beginning and 78.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,931 INFO L168 Benchmark]: Boogie Preprocessor took 161.83 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 78.7 MB in the beginning and 180.4 MB in the end (delta: -101.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,932 INFO L168 Benchmark]: RCFGBuilder took 234.89 ms. Allocated memory is still 200.8 MB. Free memory was 180.4 MB in the beginning and 167.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,933 INFO L168 Benchmark]: TraceAbstraction took 3008.26 ms. Allocated memory was 200.8 MB in the beginning and 257.4 MB in the end (delta: 56.6 MB). Free memory was 167.3 MB in the beginning and 177.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:05:24,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 289.05 ms. Allocated memory is still 140.0 MB. Free memory was 87.9 MB in the beginning and 78.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.83 ms. Allocated memory was 140.0 MB in the beginning and 200.8 MB in the end (delta: 60.8 MB). Free memory was 78.7 MB in the beginning and 180.4 MB in the end (delta: -101.6 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 234.89 ms. Allocated memory is still 200.8 MB. Free memory was 180.4 MB in the beginning and 167.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3008.26 ms. Allocated memory was 200.8 MB in the beginning and 257.4 MB in the end (delta: 56.6 MB). Free memory was 167.3 MB in the beginning and 177.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 46.7 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 22 SDslu, 141 SDs, 0 SdLazy, 278 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.4s 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, 0.3s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 12422 SizeOfPredicates, 8 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 2/18 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...