/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gj2007b.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:11:28,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:11:28,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:11:28,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:11:28,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:11:28,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:11:28,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:11:28,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:11:28,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:11:28,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:11:29,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:11:29,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-11-23 22:11:29,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:11:29,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:11:29,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:11:29,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:11:29,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:11:29,043 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:11:29,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:11:29,043 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:11:29,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:11:29,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:11:29,044 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:11:29,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:11:29,045 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:11:29,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:11:29,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:11:29,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:11:29,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:11:29,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:11:29,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:11:29,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:11:29,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:11:29,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:11:29,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:11:29,381 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:11:29,382 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:11:29,383 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:11:29,383 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gj2007b.i [2019-11-23 22:11:29,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f7dd336/9c3e407977e941fda4d0947bb78d69f9/FLAG4c15cd3c2 [2019-11-23 22:11:29,842 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:11:29,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gj2007b.i [2019-11-23 22:11:29,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f7dd336/9c3e407977e941fda4d0947bb78d69f9/FLAG4c15cd3c2 [2019-11-23 22:11:30,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f7dd336/9c3e407977e941fda4d0947bb78d69f9 [2019-11-23 22:11:30,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:11:30,205 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:11:30,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:30,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:11:30,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:11:30,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef28fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30, skipping insertion in model container [2019-11-23 22:11:30,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:11:30,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:11:30,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:30,456 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:11:30,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:11:30,480 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:11:30,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30 WrapperNode [2019-11-23 22:11:30,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:11:30,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:30,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:11:30,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:11:30,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:11:30,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:11:30,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:11:30,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:11:30,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (1/1) ... [2019-11-23 22:11:30,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:11:30,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:11:30,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:11:30,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:11:30,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (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 [2019-11-23 22:11:30,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:11:30,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:11:30,868 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:11:30,868 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-23 22:11:30,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:30 BoogieIcfgContainer [2019-11-23 22:11:30,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:11:30,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:11:30,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:11:30,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:11:30,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:11:30" (1/3) ... [2019-11-23 22:11:30,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b21e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:30, skipping insertion in model container [2019-11-23 22:11:30,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:11:30" (2/3) ... [2019-11-23 22:11:30,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b21e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:11:30, skipping insertion in model container [2019-11-23 22:11:30,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:11:30" (3/3) ... [2019-11-23 22:11:30,877 INFO L109 eAbstractionObserver]: Analyzing ICFG gj2007b.i [2019-11-23 22:11:30,886 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:11:30,891 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 22:11:30,902 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 22:11:30,925 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:11:30,926 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:11:30,926 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:11:30,926 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:11:30,926 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:11:30,926 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:11:30,926 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:11:30,927 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:11:30,940 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 22:11:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:11:30,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:30,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:11:30,945 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:30,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:30,951 INFO L82 PathProgramCache]: Analyzing trace with hash 30139652, now seen corresponding path program 1 times [2019-11-23 22:11:30,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:30,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748324218] [2019-11-23 22:11:30,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:31,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748324218] [2019-11-23 22:11:31,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:31,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:11:31,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188801063] [2019-11-23 22:11:31,057 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:11:31,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:31,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:11:31,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:11:31,074 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2019-11-23 22:11:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:31,092 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2019-11-23 22:11:31,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:11:31,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-11-23 22:11:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:31,104 INFO L225 Difference]: With dead ends: 28 [2019-11-23 22:11:31,104 INFO L226 Difference]: Without dead ends: 12 [2019-11-23 22:11:31,107 INFO L630 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 [2019-11-23 22:11:31,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-23 22:11:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-23 22:11:31,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-23 22:11:31,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-23 22:11:31,142 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2019-11-23 22:11:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:31,143 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-23 22:11:31,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:11:31,143 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-23 22:11:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:11:31,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:31,144 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:11:31,144 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:31,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:31,145 INFO L82 PathProgramCache]: Analyzing trace with hash 29811951, now seen corresponding path program 1 times [2019-11-23 22:11:31,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:31,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32701498] [2019-11-23 22:11:31,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:31,209 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32701498] [2019-11-23 22:11:31,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:31,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:11:31,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019570982] [2019-11-23 22:11:31,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:11:31,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:31,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:11:31,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:11:31,212 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2019-11-23 22:11:31,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:31,402 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-11-23 22:11:31,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:11:31,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-23 22:11:31,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:31,404 INFO L225 Difference]: With dead ends: 23 [2019-11-23 22:11:31,404 INFO L226 Difference]: Without dead ends: 21 [2019-11-23 22:11:31,405 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:11:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-23 22:11:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2019-11-23 22:11:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-23 22:11:31,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-11-23 22:11:31,412 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 5 [2019-11-23 22:11:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:31,412 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-11-23 22:11:31,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:11:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-11-23 22:11:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:11:31,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:31,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:11:31,416 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:31,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:31,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1415330318, now seen corresponding path program 1 times [2019-11-23 22:11:31,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:31,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211995764] [2019-11-23 22:11:31,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:31,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211995764] [2019-11-23 22:11:31,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:11:31,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 22:11:31,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971497666] [2019-11-23 22:11:31,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 22:11:31,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:31,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 22:11:31,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:11:31,528 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 5 states. [2019-11-23 22:11:31,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:31,615 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2019-11-23 22:11:31,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-23 22:11:31,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-23 22:11:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:31,617 INFO L225 Difference]: With dead ends: 27 [2019-11-23 22:11:31,618 INFO L226 Difference]: Without dead ends: 21 [2019-11-23 22:11:31,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:11:31,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-23 22:11:31,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-11-23 22:11:31,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 22:11:31,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-11-23 22:11:31,624 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 7 [2019-11-23 22:11:31,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:31,624 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-11-23 22:11:31,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 22:11:31,624 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-23 22:11:31,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:11:31,625 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:31,625 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:11:31,626 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:31,626 INFO L82 PathProgramCache]: Analyzing trace with hash 608596189, now seen corresponding path program 1 times [2019-11-23 22:11:31,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:31,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884915235] [2019-11-23 22:11:31,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:31,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884915235] [2019-11-23 22:11:31,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759214913] [2019-11-23 22:11:31,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:31,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-23 22:11:31,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:11:31,750 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:11:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:31,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:11:31,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-11-23 22:11:31,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844997832] [2019-11-23 22:11:31,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 22:11:31,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:31,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 22:11:31,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:11:31,768 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 6 states. [2019-11-23 22:11:31,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:31,831 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2019-11-23 22:11:31,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:11:31,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-11-23 22:11:31,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:31,832 INFO L225 Difference]: With dead ends: 18 [2019-11-23 22:11:31,833 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 22:11:31,833 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-23 22:11:31,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 22:11:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2019-11-23 22:11:31,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-23 22:11:31,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-23 22:11:31,837 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2019-11-23 22:11:31,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:31,838 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-23 22:11:31,838 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 22:11:31,838 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-23 22:11:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 22:11:31,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:11:31,839 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:11:32,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:32,040 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:11:32,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:11:32,040 INFO L82 PathProgramCache]: Analyzing trace with hash 745541216, now seen corresponding path program 1 times [2019-11-23 22:11:32,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:11:32,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677002467] [2019-11-23 22:11:32,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:11:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:32,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:32,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677002467] [2019-11-23 22:11:32,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466022236] [2019-11-23 22:11:32,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-23 22:11:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:11:32,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-23 22:11:32,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:32,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:11:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:11:32,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-23 22:11:32,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2019-11-23 22:11:32,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474449594] [2019-11-23 22:11:32,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-23 22:11:32,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:11:32,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-23 22:11:32,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-11-23 22:11:32,260 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 11 states. [2019-11-23 22:11:32,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:11:32,596 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2019-11-23 22:11:32,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-23 22:11:32,597 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 10 [2019-11-23 22:11:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:11:32,597 INFO L225 Difference]: With dead ends: 28 [2019-11-23 22:11:32,598 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:11:32,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2019-11-23 22:11:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:11:32,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:11:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:11:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:11:32,600 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-23 22:11:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:11:32,600 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:11:32,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-23 22:11:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:11:32,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:11:32,801 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:11:32,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:11:32,911 INFO L444 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:11:32,911 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:11:32,912 INFO L447 ceAbstractionStarter]: At program point L4-5(lines 3 8) the Hoare annotation is: true [2019-11-23 22:11:32,912 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:11:32,912 INFO L444 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed. [2019-11-23 22:11:32,912 INFO L444 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2019-11-23 22:11:32,912 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-23 22:11:32,913 INFO L444 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-23 22:11:32,913 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:11:32,913 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:11:32,913 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-23 22:11:32,913 INFO L447 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2019-11-23 22:11:32,914 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 14 19) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (<= 0 ULTIMATE.start_main_~x~0))) (or (and (<= ULTIMATE.start_main_~m~0 0) .cse0 .cse1) (and .cse0 (< ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~n~0) .cse1))) [2019-11-23 22:11:32,914 INFO L444 ceAbstractionStarter]: For program point L14-3(lines 14 19) no Hoare annotation was computed. [2019-11-23 22:11:32,914 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-23 22:11:32,914 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~m~0)) (.cse1 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse2 (<= 0 ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 (< ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~n~0) .cse2) (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= ULTIMATE.start_main_~x~0 0) (<= ULTIMATE.start_main_~n~0 0)) (and (<= ULTIMATE.start_main_~m~0 0) .cse0 .cse1 .cse2))) [2019-11-23 22:11:32,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:11:32 BoogieIcfgContainer [2019-11-23 22:11:32,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:11:32,936 INFO L168 Benchmark]: Toolchain (without parser) took 2730.01 ms. Allocated memory was 144.7 MB in the beginning and 233.3 MB in the end (delta: 88.6 MB). Free memory was 103.0 MB in the beginning and 156.9 MB in the end (delta: -53.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,937 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.99 ms. Allocated memory is still 144.7 MB. Free memory was 102.8 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 144.7 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,941 INFO L168 Benchmark]: Boogie Preprocessor took 116.64 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 178.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,941 INFO L168 Benchmark]: RCFGBuilder took 238.41 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 167.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,942 INFO L168 Benchmark]: TraceAbstraction took 2062.61 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 167.8 MB in the beginning and 156.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:11:32,947 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.99 ms. Allocated memory is still 144.7 MB. Free memory was 102.8 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.40 ms. Allocated memory is still 144.7 MB. Free memory was 93.5 MB in the beginning and 92.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.64 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 92.0 MB in the beginning and 178.9 MB in the end (delta: -86.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 238.41 ms. Allocated memory is still 200.8 MB. Free memory was 178.9 MB in the beginning and 167.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2062.61 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 167.8 MB in the beginning and 156.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 43.4 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((m <= 0 && 0 <= m) && 0 <= x) || ((0 <= m && m < n) && 0 <= x) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((((0 <= m && 1 == cond) && m < n) && 0 <= x) || ((!(0 == cond) && x <= 0) && n <= 0)) || (((m <= 0 && 0 <= m) && 1 == cond) && 0 <= x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 41 SDtfs, 72 SDslu, 50 SDs, 0 SdLazy, 107 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 61 HoareAnnotationTreeSize, 4 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1209 SizeOfPredicates, 12 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...