/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/Problem01_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:31:29,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:31:29,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:31:29,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:31:29,181 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 23:31:29,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:31:29,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:31:29,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:31:29,206 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:31:29,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:31:29,206 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:31:29,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:31:29,206 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:31:29,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:31:29,207 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:31:29,208 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:31:29,208 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:31:29,208 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:31:29,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:31:29,209 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:31:29,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:31:29,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:31:29,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:31:29,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:31:29,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:31:29,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:31:29,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:31:29,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:31:29,214 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:31:29,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:31:29,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:31:29,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:31:29,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:31:29,215 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:31:29,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:31:29,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:31:29,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:31:29,216 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:31:29,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:31:29,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:31:29,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:31:29,556 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:31:29,556 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:31:29,557 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2019-11-23 23:31:29,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a12e0b3/964653ee6c1140c5a6817cd1aae4ab53/FLAG9dd153d35 [2019-11-23 23:31:30,192 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:31:30,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label49.c [2019-11-23 23:31:30,212 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a12e0b3/964653ee6c1140c5a6817cd1aae4ab53/FLAG9dd153d35 [2019-11-23 23:31:30,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9a12e0b3/964653ee6c1140c5a6817cd1aae4ab53 [2019-11-23 23:31:30,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:31:30,488 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:31:30,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:31:30,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:31:30,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:31:30,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:30" (1/1) ... [2019-11-23 23:31:30,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa5dada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:30, skipping insertion in model container [2019-11-23 23:31:30,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:30" (1/1) ... [2019-11-23 23:31:30,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:31:30,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:31:31,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:31:31,116 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:31:31,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:31:31,318 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:31:31,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31 WrapperNode [2019-11-23 23:31:31,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:31:31,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:31:31,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:31:31,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:31:31,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:31:31,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:31:31,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:31:31,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:31:31,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (1/1) ... [2019-11-23 23:31:31,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:31:31,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:31:31,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:31:31,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:31:31,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (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 23:31:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:31:31,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:31:33,378 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:31:33,378 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:31:33,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:33 BoogieIcfgContainer [2019-11-23 23:31:33,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:31:33,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:31:33,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:31:33,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:31:33,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:31:30" (1/3) ... [2019-11-23 23:31:33,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e68305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:33, skipping insertion in model container [2019-11-23 23:31:33,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:31" (2/3) ... [2019-11-23 23:31:33,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44e68305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:33, skipping insertion in model container [2019-11-23 23:31:33,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:33" (3/3) ... [2019-11-23 23:31:33,388 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label49.c [2019-11-23 23:31:33,398 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:31:33,405 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:31:33,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:31:33,445 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:31:33,446 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:31:33,446 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:31:33,446 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:31:33,446 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:31:33,446 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:31:33,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:31:33,447 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:31:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-11-23 23:31:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-11-23 23:31:33,471 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:31:33,471 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] [2019-11-23 23:31:33,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:31:33,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:31:33,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1323239774, now seen corresponding path program 1 times [2019-11-23 23:31:33,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:31:33,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741258467] [2019-11-23 23:31:33,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:31:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:31:33,960 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 23:31:33,961 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741258467] [2019-11-23 23:31:33,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:31:33,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:31:33,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949035801] [2019-11-23 23:31:33,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:31:33,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:31:33,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:31:33,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:31:33,987 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 4 states. [2019-11-23 23:31:34,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:31:34,782 INFO L93 Difference]: Finished difference Result 297 states and 569 transitions. [2019-11-23 23:31:34,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:31:34,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2019-11-23 23:31:34,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:31:34,808 INFO L225 Difference]: With dead ends: 297 [2019-11-23 23:31:34,809 INFO L226 Difference]: Without dead ends: 216 [2019-11-23 23:31:34,814 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 23:31:34,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-23 23:31:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2019-11-23 23:31:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-11-23 23:31:34,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 396 transitions. [2019-11-23 23:31:34,874 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 396 transitions. Word has length 71 [2019-11-23 23:31:34,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:31:34,875 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 396 transitions. [2019-11-23 23:31:34,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:31:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 396 transitions. [2019-11-23 23:31:34,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-11-23 23:31:34,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:31:34,879 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-23 23:31:34,880 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:31:34,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:31:34,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1566184954, now seen corresponding path program 1 times [2019-11-23 23:31:34,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:31:34,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454473132] [2019-11-23 23:31:34,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:31:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:31:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:31:34,945 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454473132] [2019-11-23 23:31:34,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:31:34,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:31:34,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086814655] [2019-11-23 23:31:34,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:31:34,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:31:34,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:31:34,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:31:34,949 INFO L87 Difference]: Start difference. First operand 216 states and 396 transitions. Second operand 3 states. [2019-11-23 23:31:35,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:31:35,288 INFO L93 Difference]: Finished difference Result 644 states and 1185 transitions. [2019-11-23 23:31:35,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:31:35,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-11-23 23:31:35,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:31:35,293 INFO L225 Difference]: With dead ends: 644 [2019-11-23 23:31:35,294 INFO L226 Difference]: Without dead ends: 429 [2019-11-23 23:31:35,296 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 23:31:35,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2019-11-23 23:31:35,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 358. [2019-11-23 23:31:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2019-11-23 23:31:35,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 587 transitions. [2019-11-23 23:31:35,323 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 587 transitions. Word has length 84 [2019-11-23 23:31:35,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:31:35,324 INFO L462 AbstractCegarLoop]: Abstraction has 358 states and 587 transitions. [2019-11-23 23:31:35,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:31:35,324 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 587 transitions. [2019-11-23 23:31:35,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-11-23 23:31:35,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:31:35,329 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-23 23:31:35,329 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:31:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:31:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash -81017640, now seen corresponding path program 1 times [2019-11-23 23:31:35,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:31:35,331 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395591187] [2019-11-23 23:31:35,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:31:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:31:35,410 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-11-23 23:31:35,411 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395591187] [2019-11-23 23:31:35,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:31:35,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:31:35,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129628385] [2019-11-23 23:31:35,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:31:35,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:31:35,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:31:35,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:31:35,414 INFO L87 Difference]: Start difference. First operand 358 states and 587 transitions. Second operand 4 states. [2019-11-23 23:31:36,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:31:36,047 INFO L93 Difference]: Finished difference Result 1210 states and 2012 transitions. [2019-11-23 23:31:36,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:31:36,047 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-11-23 23:31:36,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:31:36,048 INFO L225 Difference]: With dead ends: 1210 [2019-11-23 23:31:36,048 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:31:36,052 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 23:31:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:31:36,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:31:36,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:31:36,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:31:36,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2019-11-23 23:31:36,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:31:36,054 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:31:36,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:31:36,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:31:36,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:31:36,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:31:36,103 INFO L444 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-11-23 23:31:36,103 INFO L444 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-11-23 23:31:36,103 INFO L444 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-11-23 23:31:36,103 INFO L444 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-11-23 23:31:36,104 INFO L444 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-11-23 23:31:36,105 INFO L444 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-11-23 23:31:36,105 INFO L444 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-11-23 23:31:36,105 INFO L444 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-11-23 23:31:36,105 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-11-23 23:31:36,105 INFO L444 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L440 ceAbstractionStarter]: At program point L574(lines 30 575) the Hoare annotation is: (or (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-11-23 23:31:36,106 INFO L444 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L447 ceAbstractionStarter]: At program point L577(lines 577 594) the Hoare annotation is: true [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-11-23 23:31:36,107 INFO L444 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-11-23 23:31:36,108 INFO L444 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L440 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-11-23 23:31:36,109 INFO L444 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-11-23 23:31:36,110 INFO L444 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-11-23 23:31:36,111 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2019-11-23 23:31:36,112 INFO L444 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-11-23 23:31:36,113 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-11-23 23:31:36,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:31:36 BoogieIcfgContainer [2019-11-23 23:31:36,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:31:36,133 INFO L168 Benchmark]: Toolchain (without parser) took 5644.21 ms. Allocated memory was 138.9 MB in the beginning and 299.4 MB in the end (delta: 160.4 MB). Free memory was 101.6 MB in the beginning and 174.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,134 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 162.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.10 ms. Allocated memory is still 201.3 MB. Free memory was 162.7 MB in the beginning and 157.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,137 INFO L168 Benchmark]: Boogie Preprocessor took 66.78 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 152.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,138 INFO L168 Benchmark]: RCFGBuilder took 1902.42 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 152.2 MB in the beginning and 200.9 MB in the end (delta: -48.7 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,139 INFO L168 Benchmark]: TraceAbstraction took 2749.05 ms. Allocated memory was 249.6 MB in the beginning and 299.4 MB in the end (delta: 49.8 MB). Free memory was 199.0 MB in the beginning and 174.1 MB in the end (delta: 24.9 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. [2019-11-23 23:31:36,143 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.32 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 101.4 MB in the beginning and 162.7 MB in the end (delta: -61.3 MB). Peak memory consumption was 30.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 90.10 ms. Allocated memory is still 201.3 MB. Free memory was 162.7 MB in the beginning and 157.1 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.78 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 152.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1902.42 ms. Allocated memory was 201.3 MB in the beginning and 249.6 MB in the end (delta: 48.2 MB). Free memory was 152.2 MB in the beginning and 200.9 MB in the end (delta: -48.7 MB). Peak memory consumption was 110.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2749.05 ms. Allocated memory was 249.6 MB in the beginning and 299.4 MB in the end (delta: 49.8 MB). Free memory was 199.0 MB in the beginning and 174.1 MB in the end (delta: 24.9 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: 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: 30]: Loop Invariant Derived loop invariant: !(a16 == 6) || !(14 == a8) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: !(a16 == 6) || !(14 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 393 SDslu, 21 SDs, 0 SdLazy, 854 SolverSat, 368 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s 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=358occurred 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, 71 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 30 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 234 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 248 NumberOfCodeBlocks, 248 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 37891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 41/41 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...