/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_label28.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:32:40,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:32:40,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:32:40,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:32:40,578 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 23:32:40,593 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:32:40,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:32:40,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:32:40,594 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:32:40,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:32:40,595 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:32:40,595 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:32:40,595 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:32:40,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:32:40,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:32:40,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:32:40,596 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:32:40,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:32:40,596 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:32:40,596 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:32:40,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:32:40,597 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:32:40,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:32:40,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:32:40,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:32:40,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:32:40,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:32:40,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:32:40,599 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:32:40,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:32:40,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:32:40,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:32:40,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:32:40,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:32:40,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:32:40,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:32:40,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:32:40,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:32:40,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:32:40,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:32:40,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:32:40,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:32:40,601 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:32:40,884 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:32:40,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:32:40,912 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:32:40,914 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:32:40,914 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:32:40,915 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label28.c [2019-11-23 23:32:40,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c742bd4ca/76c927d4c2c2411f834061e376031440/FLAG5837ada5e [2019-11-23 23:32:41,550 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:32:41,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label28.c [2019-11-23 23:32:41,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c742bd4ca/76c927d4c2c2411f834061e376031440/FLAG5837ada5e [2019-11-23 23:32:41,811 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c742bd4ca/76c927d4c2c2411f834061e376031440 [2019-11-23 23:32:41,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:32:41,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:32:41,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:41,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:32:41,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:32:41,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:41" (1/1) ... [2019-11-23 23:32:41,832 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bea9702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:41, skipping insertion in model container [2019-11-23 23:32:41,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:41" (1/1) ... [2019-11-23 23:32:41,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:32:41,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:32:42,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:42,424 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:32:42,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:42,588 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:32:42,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42 WrapperNode [2019-11-23 23:32:42,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:42,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:42,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:32:42,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:32:42,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:42,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:32:42,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:32:42,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:32:42,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (1/1) ... [2019-11-23 23:32:42,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:32:42,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:32:42,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:32:42,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:32:42,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (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 23:32:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:32:42,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:32:44,842 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:32:44,842 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:32:44,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:44 BoogieIcfgContainer [2019-11-23 23:32:44,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:32:44,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:32:44,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:32:44,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:32:44,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:32:41" (1/3) ... [2019-11-23 23:32:44,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e4ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:44, skipping insertion in model container [2019-11-23 23:32:44,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:42" (2/3) ... [2019-11-23 23:32:44,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e4ac21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:44, skipping insertion in model container [2019-11-23 23:32:44,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:44" (3/3) ... [2019-11-23 23:32:44,852 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label28.c [2019-11-23 23:32:44,862 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:32:44,870 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:32:44,884 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:32:44,913 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:32:44,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:32:44,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:32:44,914 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:32:44,914 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:32:44,914 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:32:44,914 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:32:44,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:32:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-23 23:32:44,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-23 23:32:44,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:44,943 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 23:32:44,943 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:44,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:44,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1497210672, now seen corresponding path program 1 times [2019-11-23 23:32:44,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:44,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252314012] [2019-11-23 23:32:44,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:45,424 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 23:32:45,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252314012] [2019-11-23 23:32:45,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:45,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:45,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131450575] [2019-11-23 23:32:45,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:45,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:45,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:45,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:45,450 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-23 23:32:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:46,259 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-23 23:32:46,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:46,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-23 23:32:46,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:46,278 INFO L225 Difference]: With dead ends: 333 [2019-11-23 23:32:46,278 INFO L226 Difference]: Without dead ends: 243 [2019-11-23 23:32:46,282 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 23:32:46,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-23 23:32:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2019-11-23 23:32:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-23 23:32:46,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 398 transitions. [2019-11-23 23:32:46,344 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 398 transitions. Word has length 80 [2019-11-23 23:32:46,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:46,345 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 398 transitions. [2019-11-23 23:32:46,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:46,345 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 398 transitions. [2019-11-23 23:32:46,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-11-23 23:32:46,354 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:46,354 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-11-23 23:32:46,355 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:46,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:46,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1899334607, now seen corresponding path program 1 times [2019-11-23 23:32:46,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:46,356 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817959784] [2019-11-23 23:32:46,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:46,498 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:46,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817959784] [2019-11-23 23:32:46,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:46,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:46,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296608310] [2019-11-23 23:32:46,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:46,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:46,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:46,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:46,504 INFO L87 Difference]: Start difference. First operand 243 states and 398 transitions. Second operand 3 states. [2019-11-23 23:32:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:46,891 INFO L93 Difference]: Finished difference Result 725 states and 1191 transitions. [2019-11-23 23:32:46,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:46,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2019-11-23 23:32:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:46,921 INFO L225 Difference]: With dead ends: 725 [2019-11-23 23:32:46,921 INFO L226 Difference]: Without dead ends: 483 [2019-11-23 23:32:46,923 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:46,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-11-23 23:32:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2019-11-23 23:32:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2019-11-23 23:32:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 743 transitions. [2019-11-23 23:32:46,966 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 743 transitions. Word has length 89 [2019-11-23 23:32:46,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:46,967 INFO L462 AbstractCegarLoop]: Abstraction has 483 states and 743 transitions. [2019-11-23 23:32:46,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 743 transitions. [2019-11-23 23:32:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-23 23:32:46,972 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:46,973 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2019-11-23 23:32:46,973 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:46,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:46,973 INFO L82 PathProgramCache]: Analyzing trace with hash -2099183855, now seen corresponding path program 1 times [2019-11-23 23:32:46,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:46,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996668518] [2019-11-23 23:32:46,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:47,041 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996668518] [2019-11-23 23:32:47,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:47,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:47,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491948139] [2019-11-23 23:32:47,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:47,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:47,043 INFO L87 Difference]: Start difference. First operand 483 states and 743 transitions. Second operand 4 states. [2019-11-23 23:32:47,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:47,786 INFO L93 Difference]: Finished difference Result 1847 states and 2838 transitions. [2019-11-23 23:32:47,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:47,787 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-11-23 23:32:47,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:47,795 INFO L225 Difference]: With dead ends: 1847 [2019-11-23 23:32:47,796 INFO L226 Difference]: Without dead ends: 1365 [2019-11-23 23:32:47,799 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 23:32:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2019-11-23 23:32:47,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 883. [2019-11-23 23:32:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2019-11-23 23:32:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1294 transitions. [2019-11-23 23:32:47,836 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1294 transitions. Word has length 99 [2019-11-23 23:32:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:47,837 INFO L462 AbstractCegarLoop]: Abstraction has 883 states and 1294 transitions. [2019-11-23 23:32:47,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1294 transitions. [2019-11-23 23:32:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-23 23:32:47,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:47,842 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 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] [2019-11-23 23:32:47,842 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:47,843 INFO L82 PathProgramCache]: Analyzing trace with hash 468116069, now seen corresponding path program 1 times [2019-11-23 23:32:47,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:47,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797553345] [2019-11-23 23:32:47,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:47,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:47,895 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-23 23:32:47,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797553345] [2019-11-23 23:32:47,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:47,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:47,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615527676] [2019-11-23 23:32:47,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:47,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:47,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:47,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:47,898 INFO L87 Difference]: Start difference. First operand 883 states and 1294 transitions. Second operand 3 states. [2019-11-23 23:32:48,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:48,389 INFO L93 Difference]: Finished difference Result 1925 states and 2862 transitions. [2019-11-23 23:32:48,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:48,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-11-23 23:32:48,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:48,397 INFO L225 Difference]: With dead ends: 1925 [2019-11-23 23:32:48,397 INFO L226 Difference]: Without dead ends: 1043 [2019-11-23 23:32:48,400 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-11-23 23:32:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2019-11-23 23:32:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2019-11-23 23:32:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1183 transitions. [2019-11-23 23:32:48,432 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1183 transitions. Word has length 108 [2019-11-23 23:32:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:48,433 INFO L462 AbstractCegarLoop]: Abstraction has 883 states and 1183 transitions. [2019-11-23 23:32:48,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:48,433 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1183 transitions. [2019-11-23 23:32:48,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-11-23 23:32:48,436 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:48,436 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 23:32:48,437 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:48,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:48,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1498503859, now seen corresponding path program 1 times [2019-11-23 23:32:48,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:48,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431478817] [2019-11-23 23:32:48,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-23 23:32:48,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431478817] [2019-11-23 23:32:48,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:48,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:32:48,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294591100] [2019-11-23 23:32:48,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:48,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:48,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:48,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:48,501 INFO L87 Difference]: Start difference. First operand 883 states and 1183 transitions. Second operand 3 states. [2019-11-23 23:32:48,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:48,900 INFO L93 Difference]: Finished difference Result 2405 states and 3186 transitions. [2019-11-23 23:32:48,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:48,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-11-23 23:32:48,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:48,907 INFO L225 Difference]: With dead ends: 2405 [2019-11-23 23:32:48,908 INFO L226 Difference]: Without dead ends: 1443 [2019-11-23 23:32:48,910 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 23:32:48,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-11-23 23:32:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2019-11-23 23:32:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1443 states. [2019-11-23 23:32:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1777 transitions. [2019-11-23 23:32:48,946 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1777 transitions. Word has length 109 [2019-11-23 23:32:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:48,946 INFO L462 AbstractCegarLoop]: Abstraction has 1443 states and 1777 transitions. [2019-11-23 23:32:48,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1777 transitions. [2019-11-23 23:32:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-23 23:32:48,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:48,950 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 23:32:48,950 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:48,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:48,951 INFO L82 PathProgramCache]: Analyzing trace with hash 136980059, now seen corresponding path program 1 times [2019-11-23 23:32:48,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:48,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382628388] [2019-11-23 23:32:48,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-23 23:32:49,033 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382628388] [2019-11-23 23:32:49,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:49,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:49,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027368130] [2019-11-23 23:32:49,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:49,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:49,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:49,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:49,036 INFO L87 Difference]: Start difference. First operand 1443 states and 1777 transitions. Second operand 3 states. [2019-11-23 23:32:49,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:49,400 INFO L93 Difference]: Finished difference Result 2885 states and 3553 transitions. [2019-11-23 23:32:49,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:49,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2019-11-23 23:32:49,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:49,408 INFO L225 Difference]: With dead ends: 2885 [2019-11-23 23:32:49,408 INFO L226 Difference]: Without dead ends: 1443 [2019-11-23 23:32:49,411 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2019-11-23 23:32:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2019-11-23 23:32:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1443 states. [2019-11-23 23:32:49,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1762 transitions. [2019-11-23 23:32:49,442 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1762 transitions. Word has length 112 [2019-11-23 23:32:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:49,442 INFO L462 AbstractCegarLoop]: Abstraction has 1443 states and 1762 transitions. [2019-11-23 23:32:49,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1762 transitions. [2019-11-23 23:32:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-11-23 23:32:49,446 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:49,446 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-11-23 23:32:49,446 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:49,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:49,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2044923871, now seen corresponding path program 1 times [2019-11-23 23:32:49,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:49,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547783798] [2019-11-23 23:32:49,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:49,525 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-23 23:32:49,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547783798] [2019-11-23 23:32:49,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336502929] [2019-11-23 23:32:49,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:32:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:49,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 23:32:49,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:32:49,701 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-23 23:32:49,701 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:32:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-23 23:32:49,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 23:32:49,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [3] total 4 [2019-11-23 23:32:49,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900460501] [2019-11-23 23:32:49,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:49,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:49,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:49,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 23:32:49,749 INFO L87 Difference]: Start difference. First operand 1443 states and 1762 transitions. Second operand 3 states. [2019-11-23 23:32:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:50,015 INFO L93 Difference]: Finished difference Result 2643 states and 3253 transitions. [2019-11-23 23:32:50,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:50,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-11-23 23:32:50,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:50,016 INFO L225 Difference]: With dead ends: 2643 [2019-11-23 23:32:50,016 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:32:50,020 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 263 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-11-23 23:32:50,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:32:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:32:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:32:50,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:32:50,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2019-11-23 23:32:50,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:50,022 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:32:50,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:50,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:32:50,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:32:50,227 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:32:50,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:32:50,499 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2019-11-23 23:32:50,620 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 29 [2019-11-23 23:32:50,624 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-23 23:32:50,624 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-23 23:32:50,624 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-23 23:32:50,624 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-23 23:32:50,624 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-23 23:32:50,625 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-23 23:32:50,625 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-23 23:32:50,626 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-23 23:32:50,627 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-23 23:32:50,628 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-23 23:32:50,629 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 544) no Hoare annotation was computed. [2019-11-23 23:32:50,630 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-23 23:32:50,630 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-23 23:32:50,630 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-23 23:32:50,630 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 8)) (.cse2 (not (= ~a28~0 11))) (.cse5 (= ~a19~0 1)) (.cse3 (= ~a28~0 7)) (.cse0 (= ~a25~0 1)) (.cse4 (not (= ~a11~0 1)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1) (and .cse1 .cse4 .cse2) (and .cse5 .cse0 .cse1 .cse4) (and .cse5 .cse1 .cse2) (and (<= 10 ~a28~0) .cse1 .cse2) (and .cse5 .cse3 .cse0 .cse4))) [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-23 23:32:50,631 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-23 23:32:50,632 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-23 23:32:50,632 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-23 23:32:50,632 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-23 23:32:50,634 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (<= ~a17~0 8)) (.cse2 (not (= ~a28~0 11))) (.cse5 (= ~a19~0 1)) (.cse3 (= ~a28~0 7)) (.cse0 (= ~a25~0 1)) (.cse4 (not (= ~a11~0 1)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1) (and .cse1 .cse4 .cse2) (and .cse5 .cse0 .cse1 .cse4) (and .cse5 .cse1 .cse2) (and (<= 10 ~a28~0) .cse1 .cse2) (and .cse5 .cse3 .cse0 .cse4))) [2019-11-23 23:32:50,634 INFO L444 ceAbstractionStarter]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:50,634 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-23 23:32:50,634 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-23 23:32:50,634 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-23 23:32:50,634 INFO L444 ceAbstractionStarter]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-23 23:32:50,635 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-23 23:32:50,636 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-23 23:32:50,637 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-23 23:32:50,637 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-23 23:32:50,637 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-23 23:32:50,637 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-23 23:32:50,637 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-23 23:32:50,638 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-23 23:32:50,639 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-23 23:32:50,639 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-23 23:32:50,640 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-23 23:32:50,640 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-23 23:32:50,640 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-23 23:32:50,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:32:50 BoogieIcfgContainer [2019-11-23 23:32:50,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:32:50,679 INFO L168 Benchmark]: Toolchain (without parser) took 8855.87 ms. Allocated memory was 145.2 MB in the beginning and 329.8 MB in the end (delta: 184.5 MB). Free memory was 100.2 MB in the beginning and 221.7 MB in the end (delta: -121.5 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,680 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.55 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 100.0 MB in the beginning and 169.0 MB in the end (delta: -69.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.77 ms. Allocated memory is still 204.5 MB. Free memory was 169.0 MB in the beginning and 163.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,683 INFO L168 Benchmark]: Boogie Preprocessor took 64.36 ms. Allocated memory is still 204.5 MB. Free memory was 163.4 MB in the beginning and 159.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,684 INFO L168 Benchmark]: RCFGBuilder took 2104.16 ms. Allocated memory was 204.5 MB in the beginning and 250.6 MB in the end (delta: 46.1 MB). Free memory was 158.6 MB in the beginning and 194.7 MB in the end (delta: -36.1 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,685 INFO L168 Benchmark]: TraceAbstraction took 5831.97 ms. Allocated memory was 250.6 MB in the beginning and 329.8 MB in the end (delta: 79.2 MB). Free memory was 194.7 MB in the beginning and 221.7 MB in the end (delta: -27.0 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:50,690 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.55 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 100.0 MB in the beginning and 169.0 MB in the end (delta: -69.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 85.77 ms. Allocated memory is still 204.5 MB. Free memory was 169.0 MB in the beginning and 163.4 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.36 ms. Allocated memory is still 204.5 MB. Free memory was 163.4 MB in the beginning and 159.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2104.16 ms. Allocated memory was 204.5 MB in the beginning and 250.6 MB in the end (delta: 46.1 MB). Free memory was 158.6 MB in the beginning and 194.7 MB in the end (delta: -36.1 MB). Peak memory consumption was 113.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5831.97 ms. Allocated memory was 250.6 MB in the beginning and 329.8 MB in the end (delta: 79.2 MB). Free memory was 194.7 MB in the beginning and 221.7 MB in the end (delta: -27.0 MB). Peak memory consumption was 52.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 544]: 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: (((((((a25 == 1 && a17 <= 8) && !(a28 == 11)) || (a28 == 7 && a17 <= 8)) || ((a17 <= 8 && !(a11 == 1)) && !(a28 == 11))) || (((a19 == 1 && a25 == 1) && a17 <= 8) && !(a11 == 1))) || ((a19 == 1 && a17 <= 8) && !(a28 == 11))) || ((10 <= a28 && a17 <= 8) && !(a28 == 11))) || (((a19 == 1 && a28 == 7) && a25 == 1) && !(a11 == 1)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((a25 == 1 && a17 <= 8) && !(a28 == 11)) || (a28 == 7 && a17 <= 8)) || ((a17 <= 8 && !(a11 == 1)) && !(a28 == 11))) || (((a19 == 1 && a25 == 1) && a17 <= 8) && !(a11 == 1))) || ((a19 == 1 && a17 <= 8) && !(a28 == 11))) || ((10 <= a28 && a17 <= 8) && !(a28 == 11))) || (((a19 == 1 && a28 == 7) && a25 == 1) && !(a11 == 1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 5.7s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 552 SDtfs, 687 SDslu, 46 SDs, 0 SdLazy, 1902 SolverSat, 523 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 286 GetRequests, 272 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1443occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 642 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 38 NumberOfFragments, 163 HoareAnnotationTreeSize, 3 FomulaSimplifications, 436 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 122 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 987 ConstructedInterpolants, 0 QuantifiedInterpolants, 202490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 370/378 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...