/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/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:33:25,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:33:25,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:33:25,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:33:25,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:33:25,136 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:33:25,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:33:25,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:33:25,139 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:33:25,139 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:33:25,140 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:33:25,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:33:25,140 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:33:25,140 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:33:25,140 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:33:25,141 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:33:25,141 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:33:25,141 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:33:25,141 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:33:25,142 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:33:25,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:33:25,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:33:25,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:33:25,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:33:25,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:33:25,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:33:25,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:33:25,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:33:25,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:33:25,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:33:25,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:33:25,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:33:25,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:33:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:33:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:33:25,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:33:25,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:33:25,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:33:25,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:33:25,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:33:25,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:33:25,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:33:25,150 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:33:25,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:33:25,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:33:25,489 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:33:25,490 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:33:25,490 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:33:25,491 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2019-11-23 23:33:25,547 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42debfc8/06921226f59e4c869ee04a3e2b05c639/FLAG825c3f0d1 [2019-11-23 23:33:26,071 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:33:26,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label52.c [2019-11-23 23:33:26,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42debfc8/06921226f59e4c869ee04a3e2b05c639/FLAG825c3f0d1 [2019-11-23 23:33:26,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a42debfc8/06921226f59e4c869ee04a3e2b05c639 [2019-11-23 23:33:26,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:33:26,315 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:33:26,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:33:26,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:33:26,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:33:26,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:26" (1/1) ... [2019-11-23 23:33:26,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18136a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:26, skipping insertion in model container [2019-11-23 23:33:26,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:33:26" (1/1) ... [2019-11-23 23:33:26,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:33:26,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:33:26,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:33:26,883 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:33:27,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:33:27,170 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:33:27,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27 WrapperNode [2019-11-23 23:33:27,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:33:27,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:33:27,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:33:27,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:33:27,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:33:27,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:33:27,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:33:27,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:33:27,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (1/1) ... [2019-11-23 23:33:27,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:33:27,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:33:27,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:33:27,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:33:27,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (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 23:33:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:33:27,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:33:29,632 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:33:29,633 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:33:29,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:29 BoogieIcfgContainer [2019-11-23 23:33:29,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:33:29,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:33:29,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:33:29,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:33:29,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:33:26" (1/3) ... [2019-11-23 23:33:29,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af6ffbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:29, skipping insertion in model container [2019-11-23 23:33:29,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:33:27" (2/3) ... [2019-11-23 23:33:29,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3af6ffbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:33:29, skipping insertion in model container [2019-11-23 23:33:29,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:33:29" (3/3) ... [2019-11-23 23:33:29,646 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label52.c [2019-11-23 23:33:29,656 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:33:29,664 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:33:29,676 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:33:29,709 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:33:29,709 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:33:29,709 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:33:29,710 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:33:29,710 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:33:29,710 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:33:29,710 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:33:29,711 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:33:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-23 23:33:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-23 23:33:29,744 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:29,745 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:33:29,746 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:29,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:29,752 INFO L82 PathProgramCache]: Analyzing trace with hash 925948553, now seen corresponding path program 1 times [2019-11-23 23:33:29,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:29,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605401399] [2019-11-23 23:33:29,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:30,172 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 23:33:30,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605401399] [2019-11-23 23:33:30,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:30,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:30,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925435172] [2019-11-23 23:33:30,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:30,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:30,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:30,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:30,208 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-23 23:33:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:31,119 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-23 23:33:31,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:31,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-23 23:33:31,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:31,139 INFO L225 Difference]: With dead ends: 333 [2019-11-23 23:33:31,139 INFO L226 Difference]: Without dead ends: 243 [2019-11-23 23:33:31,145 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:31,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-23 23:33:31,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2019-11-23 23:33:31,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-23 23:33:31,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 398 transitions. [2019-11-23 23:33:31,226 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 398 transitions. Word has length 80 [2019-11-23 23:33:31,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:31,227 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 398 transitions. [2019-11-23 23:33:31,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:31,228 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 398 transitions. [2019-11-23 23:33:31,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-11-23 23:33:31,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:31,233 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:33:31,233 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:31,234 INFO L82 PathProgramCache]: Analyzing trace with hash 782307354, now seen corresponding path program 1 times [2019-11-23 23:33:31,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:31,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997767647] [2019-11-23 23:33:31,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:31,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:33:31,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997767647] [2019-11-23 23:33:31,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:31,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:33:31,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026899930] [2019-11-23 23:33:31,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:33:31,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:31,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:33:31,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:33:31,335 INFO L87 Difference]: Start difference. First operand 243 states and 398 transitions. Second operand 3 states. [2019-11-23 23:33:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:31,714 INFO L93 Difference]: Finished difference Result 725 states and 1191 transitions. [2019-11-23 23:33:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:33:31,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2019-11-23 23:33:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:31,718 INFO L225 Difference]: With dead ends: 725 [2019-11-23 23:33:31,718 INFO L226 Difference]: Without dead ends: 483 [2019-11-23 23:33:31,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:33:31,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-11-23 23:33:31,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2019-11-23 23:33:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-11-23 23:33:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 738 transitions. [2019-11-23 23:33:31,747 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 738 transitions. Word has length 95 [2019-11-23 23:33:31,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:31,747 INFO L462 AbstractCegarLoop]: Abstraction has 483 states and 738 transitions. [2019-11-23 23:33:31,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:33:31,748 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 738 transitions. [2019-11-23 23:33:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-11-23 23:33:31,755 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:33:31,755 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:33:31,755 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:33:31,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:33:31,756 INFO L82 PathProgramCache]: Analyzing trace with hash 545964023, now seen corresponding path program 1 times [2019-11-23 23:33:31,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:33:31,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606946223] [2019-11-23 23:33:31,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:33:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:33:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-11-23 23:33:31,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606946223] [2019-11-23 23:33:31,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:33:31,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:33:31,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724066921] [2019-11-23 23:33:31,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:33:31,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:33:31,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:33:31,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:31,844 INFO L87 Difference]: Start difference. First operand 483 states and 738 transitions. Second operand 4 states. [2019-11-23 23:33:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:33:32,627 INFO L93 Difference]: Finished difference Result 1843 states and 2790 transitions. [2019-11-23 23:33:32,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:33:32,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2019-11-23 23:33:32,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:33:32,630 INFO L225 Difference]: With dead ends: 1843 [2019-11-23 23:33:32,630 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:33:32,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:33:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:33:32,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:33:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:33:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:33:32,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 114 [2019-11-23 23:33:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:33:32,636 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:33:32,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:33:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:33:32,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:33:32,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:33:32,698 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-23 23:33:32,698 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-23 23:33:32,698 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-23 23:33:32,699 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-23 23:33:32,700 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-23 23:33:32,701 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-23 23:33:32,702 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 484) no Hoare annotation was computed. [2019-11-23 23:33:32,703 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-23 23:33:32,704 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-23 23:33:32,704 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-23 23:33:32,704 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-23 23:33:32,704 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (or (not (= ~a28~0 8)) (= ~a19~0 1) (not (= ~a11~0 1))) [2019-11-23 23:33:32,704 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-23 23:33:32,705 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (or (not (= ~a28~0 8)) (= ~a19~0 1) (not (= ~a11~0 1))) [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-23 23:33:32,706 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-23 23:33:32,707 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L484(line 484) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-23 23:33:32,708 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-23 23:33:32,709 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-23 23:33:32,710 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-23 23:33:32,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:33:32 BoogieIcfgContainer [2019-11-23 23:33:32,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:33:32,730 INFO L168 Benchmark]: Toolchain (without parser) took 6416.04 ms. Allocated memory was 137.9 MB in the beginning and 298.3 MB in the end (delta: 160.4 MB). Free memory was 101.7 MB in the beginning and 122.6 MB in the end (delta: -20.9 MB). Peak memory consumption was 139.6 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,731 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.15 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 101.5 MB in the beginning and 171.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.05 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 165.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,734 INFO L168 Benchmark]: Boogie Preprocessor took 61.79 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 160.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,735 INFO L168 Benchmark]: RCFGBuilder took 2310.48 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 160.8 MB in the beginning and 196.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 115.8 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,736 INFO L168 Benchmark]: TraceAbstraction took 3090.89 ms. Allocated memory was 250.6 MB in the beginning and 298.3 MB in the end (delta: 47.7 MB). Free memory was 196.3 MB in the beginning and 122.6 MB in the end (delta: 73.7 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. [2019-11-23 23:33:32,741 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 850.15 ms. Allocated memory was 137.9 MB in the beginning and 203.9 MB in the end (delta: 66.1 MB). Free memory was 101.5 MB in the beginning and 171.6 MB in the end (delta: -70.1 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 90.05 ms. Allocated memory is still 203.9 MB. Free memory was 171.6 MB in the beginning and 165.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.79 ms. Allocated memory is still 203.9 MB. Free memory was 165.9 MB in the beginning and 160.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2310.48 ms. Allocated memory was 203.9 MB in the beginning and 250.6 MB in the end (delta: 46.7 MB). Free memory was 160.8 MB in the beginning and 196.3 MB in the end (delta: -35.5 MB). Peak memory consumption was 115.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3090.89 ms. Allocated memory was 250.6 MB in the beginning and 298.3 MB in the end (delta: 47.7 MB). Free memory was 196.3 MB in the beginning and 122.6 MB in the end (delta: 73.7 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 484]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (!(a28 == 8) || a19 == 1) || !(a11 == 1) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (!(a28 == 8) || a19 == 1) || !(a11 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 94 SDtfs, 404 SDslu, 25 SDs, 0 SdLazy, 1117 SolverSat, 346 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 40 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 212 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 54490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 61/61 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...