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/cggmp2005b.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:33:19,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:33:19,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:33:19,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 02:33:19,909 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 [2019-10-03 02:33:19,926 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:33:19,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:33:19,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:33:19,927 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:33:19,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:33:19,928 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:33:19,928 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:33:19,928 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:33:19,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:33:19,929 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:33:19,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:33:19,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:33:19,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:33:19,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:33:19,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:33:19,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:33:19,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:33:19,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:33:19,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:33:19,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:33:19,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:33:19,932 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:33:19,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:33:19,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:33:19,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:33:19,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:33:19,933 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:33:19,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:33:19,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:33:19,934 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:33:19,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:33:19,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:33:19,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:33:19,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:33:19,989 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:33:19,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005b.i [2019-10-03 02:33:20,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650241ff6/2167438ae5334c039b1f6b525f88d2cc/FLAGdbc989ff9 [2019-10-03 02:33:20,536 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:33:20,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005b.i [2019-10-03 02:33:20,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650241ff6/2167438ae5334c039b1f6b525f88d2cc/FLAGdbc989ff9 [2019-10-03 02:33:20,932 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/650241ff6/2167438ae5334c039b1f6b525f88d2cc [2019-10-03 02:33:20,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:33:20,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:33:20,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:33:20,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:33:20,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:33:20,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:33:20" (1/1) ... [2019-10-03 02:33:20,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f201eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:20, skipping insertion in model container [2019-10-03 02:33:20,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:33:20" (1/1) ... [2019-10-03 02:33:20,965 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:33:20,988 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:33:21,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:33:21,200 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:33:21,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:33:21,238 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:33:21,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21 WrapperNode [2019-10-03 02:33:21,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:33:21,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:33:21,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:33:21,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:33:21,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (1/1) ... [2019-10-03 02:33:21,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:33:21,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:33:21,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:33:21,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:33:21,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (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 [2019-10-03 02:33:21,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:33:21,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:33:21,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:33:21,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:33:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:33:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 02:33:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:33:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:33:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:33:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:33:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:33:21,592 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:33:21,592 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-03 02:33:21,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:33:21 BoogieIcfgContainer [2019-10-03 02:33:21,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:33:21,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:33:21,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:33:21,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:33:21,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:33:20" (1/3) ... [2019-10-03 02:33:21,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330fef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:33:21, skipping insertion in model container [2019-10-03 02:33:21,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:33:21" (2/3) ... [2019-10-03 02:33:21,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330fef5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:33:21, skipping insertion in model container [2019-10-03 02:33:21,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:33:21" (3/3) ... [2019-10-03 02:33:21,602 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005b.i [2019-10-03 02:33:21,613 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:33:21,622 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:33:21,641 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:33:21,681 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:33:21,681 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:33:21,682 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:33:21,682 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:33:21,682 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:33:21,682 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:33:21,683 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:33:21,683 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:33:21,703 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-03 02:33:21,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-03 02:33:21,714 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:21,715 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:21,718 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash 728031169, now seen corresponding path program 1 times [2019-10-03 02:33:21,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:21,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:21,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:21,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:21,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:21,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:33:21,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:33:21,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:33:21,863 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:33:21,867 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:33:21,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:33:21,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:33:21,880 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-10-03 02:33:21,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:21,895 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-10-03 02:33:21,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:33:21,897 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-03 02:33:21,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:21,906 INFO L225 Difference]: With dead ends: 21 [2019-10-03 02:33:21,906 INFO L226 Difference]: Without dead ends: 14 [2019-10-03 02:33:21,908 INFO L640 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 [2019-10-03 02:33:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-03 02:33:21,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-03 02:33:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-03 02:33:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-10-03 02:33:21,946 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-10-03 02:33:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:21,947 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-10-03 02:33:21,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:33:21,947 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-10-03 02:33:21,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-03 02:33:21,948 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:21,948 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:21,949 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash 701249060, now seen corresponding path program 1 times [2019-10-03 02:33:21,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:21,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:21,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:21,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:21,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:21,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:33:21,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:33:21,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:33:21,996 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:33:21,998 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:33:21,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:33:21,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:33:21,999 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2019-10-03 02:33:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:22,013 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-10-03 02:33:22,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:33:22,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-03 02:33:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:22,015 INFO L225 Difference]: With dead ends: 15 [2019-10-03 02:33:22,015 INFO L226 Difference]: Without dead ends: 15 [2019-10-03 02:33:22,016 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:33:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-03 02:33:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-03 02:33:22,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-03 02:33:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-10-03 02:33:22,020 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2019-10-03 02:33:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:22,021 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-10-03 02:33:22,021 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:33:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-10-03 02:33:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-03 02:33:22,022 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:22,022 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:22,022 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:22,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:22,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1130211510, now seen corresponding path program 1 times [2019-10-03 02:33:22,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:22,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:22,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,025 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:22,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:33:22,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:33:22,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:33:22,070 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:33:22,071 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:33:22,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:33:22,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:33:22,072 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2019-10-03 02:33:22,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:22,092 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-10-03 02:33:22,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:33:22,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-03 02:33:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:22,095 INFO L225 Difference]: With dead ends: 16 [2019-10-03 02:33:22,095 INFO L226 Difference]: Without dead ends: 16 [2019-10-03 02:33:22,096 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:33:22,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-03 02:33:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-03 02:33:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-03 02:33:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-10-03 02:33:22,102 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 14 [2019-10-03 02:33:22,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:22,103 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-10-03 02:33:22,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:33:22,103 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-10-03 02:33:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-03 02:33:22,104 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:22,105 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:22,105 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:22,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1842576314, now seen corresponding path program 1 times [2019-10-03 02:33:22,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:33:22,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:33:22,195 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:33:22,199 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2019-10-03 02:33:22,201 INFO L207 CegarAbsIntRunner]: [0], [4], [11], [13], [20], [22], [26], [33], [45], [48], [50], [56], [57], [58], [60] [2019-10-03 02:33:22,250 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:33:22,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:33:22,406 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-03 02:33:22,408 INFO L272 AbstractInterpreter]: Visited 15 different actions 61 times. Merged at 5 different actions 28 times. Widened at 4 different actions 11 times. Performed 121 root evaluator evaluations with a maximum evaluation depth of 4. Performed 121 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Found 7 fixpoints after 3 different actions. Largest state had 3 variables. [2019-10-03 02:33:22,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:22,413 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-03 02:33:22,413 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:33:22,414 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 [2019-10-03 02:33:22,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:22,438 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-10-03 02:33:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:22,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-03 02:33:22,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:33:22,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:33:22,501 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:33:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:33:22,564 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-03 02:33:22,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2019-10-03 02:33:22,564 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-10-03 02:33:22,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:33:22,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:33:22,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:33:22,567 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2019-10-03 02:33:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:22,592 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2019-10-03 02:33:22,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:33:22,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-10-03 02:33:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:22,594 INFO L225 Difference]: With dead ends: 20 [2019-10-03 02:33:22,594 INFO L226 Difference]: Without dead ends: 20 [2019-10-03 02:33:22,595 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:33:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-03 02:33:22,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-03 02:33:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-03 02:33:22,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-10-03 02:33:22,599 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2019-10-03 02:33:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:22,599 INFO L475 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-10-03 02:33:22,599 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:33:22,600 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-10-03 02:33:22,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-03 02:33:22,600 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:33:22,601 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:33:22,601 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:33:22,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:33:22,601 INFO L82 PathProgramCache]: Analyzing trace with hash -926542376, now seen corresponding path program 2 times [2019-10-03 02:33:22,602 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:33:22,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:33:22,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:33:22,604 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:33:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:33:22,652 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:33:22,652 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:33:22,652 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:33:22,653 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:33:22,653 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:33:22,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:33:22,653 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) [2019-10-03 02:33:22,670 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:33:22,671 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:33:22,682 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-03 02:33:22,682 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:33:22,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-03 02:33:22,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:33:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-03 02:33:22,729 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:33:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-03 02:33:22,784 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:33:22,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 10 [2019-10-03 02:33:22,784 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:33:22,785 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:33:22,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:33:22,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:33:22,786 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 5 states. [2019-10-03 02:33:22,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:33:22,818 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-10-03 02:33:22,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:33:22,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-10-03 02:33:22,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:33:22,819 INFO L225 Difference]: With dead ends: 18 [2019-10-03 02:33:22,819 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:33:22,820 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:33:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:33:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:33:22,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:33:22,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:33:22,821 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-03 02:33:22,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:33:22,822 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:33:22,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:33:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:33:22,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:33:22,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:33:22 BoogieIcfgContainer [2019-10-03 02:33:22,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:33:22,831 INFO L168 Benchmark]: Toolchain (without parser) took 1885.13 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 88.4 MB in the beginning and 93.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,832 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.54 ms. Allocated memory is still 140.5 MB. Free memory was 88.2 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,834 INFO L168 Benchmark]: Boogie Preprocessor took 128.14 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 78.5 MB in the beginning and 177.4 MB in the end (delta: -98.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,835 INFO L168 Benchmark]: RCFGBuilder took 226.11 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 165.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,836 INFO L168 Benchmark]: TraceAbstraction took 1233.22 ms. Allocated memory is still 199.8 MB. Free memory was 165.2 MB in the beginning and 93.3 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:33:22,841 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 290.54 ms. Allocated memory is still 140.5 MB. Free memory was 88.2 MB in the beginning and 78.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.14 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 78.5 MB in the beginning and 177.4 MB in the end (delta: -98.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 226.11 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 165.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1233.22 ms. Allocated memory is still 199.8 MB. Free memory was 165.2 MB in the beginning and 93.3 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 82 SDtfs, 5 SDslu, 86 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s 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, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 3237 SizeOfPredicates, 3 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 26/31 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...