/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_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:32:05,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:32:05,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:32:05,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:32:05,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:32:05,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:32:05,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:32:05,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:32:05,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:32:05,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:32:05,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:32:05,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:32:05,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:32:05,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:32:05,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:32:05,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:32:05,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:32:05,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:32:05,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:32:05,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:32:05,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:32:05,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:32:05,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:32:05,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:32:05,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 23:32:05,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 23:32:05,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 23:32:05,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 23:32:05,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 23:32:05,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 23:32:05,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 23:32:05,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 23:32:05,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 23:32:05,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 23:32:05,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 23:32:05,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 23:32:05,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 23:32:05,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 23:32:05,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:32:05,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:32:05,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:32:05,677 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 23:32:05,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:32:05,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:32:05,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:32:05,714 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:32:05,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:32:05,714 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:32:05,714 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:32:05,714 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:32:05,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:32:05,715 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:32:05,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:32:05,715 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:32:05,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:32:05,715 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:32:05,716 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:32:05,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:32:05,719 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:32:05,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:32:05,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:32:05,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:32:05,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:32:05,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:32:05,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:32:05,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:32:05,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:32:05,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:32:05,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:32:05,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:32:05,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:32:05,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:32:05,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:32:05,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:32:05,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:32:05,725 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:32:05,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:32:05,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:32:05,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:32:05,726 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:32:06,014 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:32:06,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:32:06,039 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:32:06,040 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:32:06,041 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:32:06,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2019-11-23 23:32:06,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4670fe2c/5ae6d0fd7f544503ab1afa4c8f6f4a95/FLAG3fe59129f [2019-11-23 23:32:06,705 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:32:06,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label10.c [2019-11-23 23:32:06,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4670fe2c/5ae6d0fd7f544503ab1afa4c8f6f4a95/FLAG3fe59129f [2019-11-23 23:32:06,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4670fe2c/5ae6d0fd7f544503ab1afa4c8f6f4a95 [2019-11-23 23:32:06,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:32:06,976 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:32:06,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:06,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:32:06,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:32:06,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:06" (1/1) ... [2019-11-23 23:32:06,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3577e381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:06, skipping insertion in model container [2019-11-23 23:32:06,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:32:06" (1/1) ... [2019-11-23 23:32:06,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:32:07,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:32:07,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:07,713 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:32:07,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:32:07,862 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:32:07,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07 WrapperNode [2019-11-23 23:32:07,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:32:07,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:07,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:32:07,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:32:07,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:07,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:07,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:32:07,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:32:07,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:32:07,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:32:07,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:07,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:07,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:07,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:08,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:08,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:08,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (1/1) ... [2019-11-23 23:32:08,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:32:08,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:32:08,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:32:08,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:32:08,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (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 23:32:08,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:32:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:32:10,145 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:32:10,145 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 23:32:10,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:10 BoogieIcfgContainer [2019-11-23 23:32:10,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:32:10,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:32:10,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:32:10,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:32:10,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:32:06" (1/3) ... [2019-11-23 23:32:10,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dda939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:10, skipping insertion in model container [2019-11-23 23:32:10,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:32:07" (2/3) ... [2019-11-23 23:32:10,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13dda939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:10, skipping insertion in model container [2019-11-23 23:32:10,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:10" (3/3) ... [2019-11-23 23:32:10,161 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label10.c [2019-11-23 23:32:10,171 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:32:10,179 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:32:10,189 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:32:10,215 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:32:10,215 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:32:10,215 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:32:10,215 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:32:10,216 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:32:10,216 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:32:10,216 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:32:10,216 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:32:10,232 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2019-11-23 23:32:10,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-11-23 23:32:10,241 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:10,242 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 23:32:10,242 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:10,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:10,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1497213488, now seen corresponding path program 1 times [2019-11-23 23:32:10,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:10,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172771521] [2019-11-23 23:32:10,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:10,591 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 23:32:10,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172771521] [2019-11-23 23:32:10,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:10,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:10,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372505552] [2019-11-23 23:32:10,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:10,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:10,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:10,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:10,618 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 4 states. [2019-11-23 23:32:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:11,422 INFO L93 Difference]: Finished difference Result 333 states and 641 transitions. [2019-11-23 23:32:11,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:11,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-11-23 23:32:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:11,446 INFO L225 Difference]: With dead ends: 333 [2019-11-23 23:32:11,446 INFO L226 Difference]: Without dead ends: 243 [2019-11-23 23:32:11,451 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 23:32:11,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-23 23:32:11,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2019-11-23 23:32:11,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2019-11-23 23:32:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 453 transitions. [2019-11-23 23:32:11,545 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 453 transitions. Word has length 80 [2019-11-23 23:32:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:11,548 INFO L462 AbstractCegarLoop]: Abstraction has 243 states and 453 transitions. [2019-11-23 23:32:11,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:11,549 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 453 transitions. [2019-11-23 23:32:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-11-23 23:32:11,558 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:11,558 INFO L410 BasicCegarLoop]: trace histogram [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, 1] [2019-11-23 23:32:11,559 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:11,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:11,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1174964367, now seen corresponding path program 1 times [2019-11-23 23:32:11,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:11,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883681692] [2019-11-23 23:32:11,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:11,709 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:11,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883681692] [2019-11-23 23:32:11,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:11,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:32:11,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84345335] [2019-11-23 23:32:11,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:11,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:11,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:11,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:11,713 INFO L87 Difference]: Start difference. First operand 243 states and 453 transitions. Second operand 4 states. [2019-11-23 23:32:12,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:12,470 INFO L93 Difference]: Finished difference Result 807 states and 1498 transitions. [2019-11-23 23:32:12,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:12,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2019-11-23 23:32:12,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:12,475 INFO L225 Difference]: With dead ends: 807 [2019-11-23 23:32:12,475 INFO L226 Difference]: Without dead ends: 565 [2019-11-23 23:32:12,478 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 23:32:12,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2019-11-23 23:32:12,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 403. [2019-11-23 23:32:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-11-23 23:32:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 719 transitions. [2019-11-23 23:32:12,505 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 719 transitions. Word has length 98 [2019-11-23 23:32:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:12,505 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 719 transitions. [2019-11-23 23:32:12,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 719 transitions. [2019-11-23 23:32:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-23 23:32:12,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:12,509 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1] [2019-11-23 23:32:12,509 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:12,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:12,510 INFO L82 PathProgramCache]: Analyzing trace with hash 58171844, now seen corresponding path program 1 times [2019-11-23 23:32:12,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:12,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39042490] [2019-11-23 23:32:12,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:12,624 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:12,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39042490] [2019-11-23 23:32:12,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:12,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:32:12,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78014135] [2019-11-23 23:32:12,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:12,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:12,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:12,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:12,629 INFO L87 Difference]: Start difference. First operand 403 states and 719 transitions. Second operand 4 states. [2019-11-23 23:32:13,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:13,399 INFO L93 Difference]: Finished difference Result 1445 states and 2561 transitions. [2019-11-23 23:32:13,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:13,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 102 [2019-11-23 23:32:13,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:13,407 INFO L225 Difference]: With dead ends: 1445 [2019-11-23 23:32:13,408 INFO L226 Difference]: Without dead ends: 1043 [2019-11-23 23:32:13,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 23:32:13,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-11-23 23:32:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2019-11-23 23:32:13,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 883 states. [2019-11-23 23:32:13,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1446 transitions. [2019-11-23 23:32:13,455 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1446 transitions. Word has length 102 [2019-11-23 23:32:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:13,456 INFO L462 AbstractCegarLoop]: Abstraction has 883 states and 1446 transitions. [2019-11-23 23:32:13,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1446 transitions. [2019-11-23 23:32:13,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-11-23 23:32:13,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:13,462 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2019-11-23 23:32:13,463 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:13,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:13,463 INFO L82 PathProgramCache]: Analyzing trace with hash 944982297, now seen corresponding path program 1 times [2019-11-23 23:32:13,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:13,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500097489] [2019-11-23 23:32:13,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:32:13,512 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500097489] [2019-11-23 23:32:13,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:13,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:32:13,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507549823] [2019-11-23 23:32:13,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:32:13,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:13,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:32:13,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:32:13,514 INFO L87 Difference]: Start difference. First operand 883 states and 1446 transitions. Second operand 3 states. [2019-11-23 23:32:13,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:13,911 INFO L93 Difference]: Finished difference Result 2165 states and 3502 transitions. [2019-11-23 23:32:13,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:32:13,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-11-23 23:32:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:13,918 INFO L225 Difference]: With dead ends: 2165 [2019-11-23 23:32:13,919 INFO L226 Difference]: Without dead ends: 1283 [2019-11-23 23:32:13,921 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 23:32:13,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2019-11-23 23:32:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1203. [2019-11-23 23:32:13,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1203 states. [2019-11-23 23:32:13,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1718 transitions. [2019-11-23 23:32:13,953 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1718 transitions. Word has length 102 [2019-11-23 23:32:13,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:13,954 INFO L462 AbstractCegarLoop]: Abstraction has 1203 states and 1718 transitions. [2019-11-23 23:32:13,954 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:32:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1718 transitions. [2019-11-23 23:32:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-11-23 23:32:13,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:32:13,957 INFO L410 BasicCegarLoop]: trace histogram [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, 1] [2019-11-23 23:32:13,957 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:32:13,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:32:13,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1100250960, now seen corresponding path program 1 times [2019-11-23 23:32:13,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:32:13,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539587179] [2019-11-23 23:32:13,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:32:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:32:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-23 23:32:14,108 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539587179] [2019-11-23 23:32:14,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:32:14,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:32:14,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240316124] [2019-11-23 23:32:14,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:32:14,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:32:14,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:32:14,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:32:14,112 INFO L87 Difference]: Start difference. First operand 1203 states and 1718 transitions. Second operand 4 states. [2019-11-23 23:32:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:32:14,806 INFO L93 Difference]: Finished difference Result 2963 states and 4239 transitions. [2019-11-23 23:32:14,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:32:14,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2019-11-23 23:32:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:32:14,807 INFO L225 Difference]: With dead ends: 2963 [2019-11-23 23:32:14,807 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 23:32:14,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 23:32:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 23:32:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 23:32:14,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 23:32:14,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 23:32:14,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2019-11-23 23:32:14,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:32:14,812 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 23:32:14,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:32:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 23:32:14,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 23:32:14,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 23:32:14,977 INFO L444 ceAbstractionStarter]: For program point L234(lines 234 413) no Hoare annotation was computed. [2019-11-23 23:32:14,977 INFO L444 ceAbstractionStarter]: For program point L169(lines 169 413) no Hoare annotation was computed. [2019-11-23 23:32:14,977 INFO L444 ceAbstractionStarter]: For program point L368(lines 368 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L237(lines 237 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L106(lines 106 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L175(lines 175 413) no Hoare annotation was computed. [2019-11-23 23:32:14,978 INFO L444 ceAbstractionStarter]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L375(lines 375 413) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L309(lines 309 413) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L179(lines 179 413) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L113(lines 113 413) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 413) no Hoare annotation was computed. [2019-11-23 23:32:14,979 INFO L444 ceAbstractionStarter]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L378(lines 378 413) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L577(line 577) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L380(lines 380 413) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L314(lines 314 413) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L248(lines 248 413) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L50(lines 50 413) no Hoare annotation was computed. [2019-11-23 23:32:14,980 INFO L444 ceAbstractionStarter]: For program point L185(lines 185 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L119(lines 119 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L253(lines 253 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L187(lines 187 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L189(lines 189 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 413) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 23:32:14,981 INFO L444 ceAbstractionStarter]: For program point L389(lines 389 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L191(lines 191 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L259(lines 259 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L194(lines 194 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L261(lines 261 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L394(lines 394 413) no Hoare annotation was computed. [2019-11-23 23:32:14,982 INFO L444 ceAbstractionStarter]: For program point L328(lines 328 413) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point L130(lines 130 413) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point L65(lines 65 413) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 577) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point L198(lines 198 413) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point L331(lines 331 413) no Hoare annotation was computed. [2019-11-23 23:32:14,983 INFO L444 ceAbstractionStarter]: For program point L398(lines 398 413) no Hoare annotation was computed. [2019-11-23 23:32:14,984 INFO L444 ceAbstractionStarter]: For program point L134(lines 134 413) no Hoare annotation was computed. [2019-11-23 23:32:14,984 INFO L440 ceAbstractionStarter]: At program point L597(lines 29 598) the Hoare annotation is: (let ((.cse0 (not (= ~a25~0 1))) (.cse1 (= ~a17~0 8))) (or (= ~a28~0 9) (= ~a19~0 1) (and (= ~a28~0 10) .cse0) (and .cse0 .cse1) (and .cse1 (not (= ~a28~0 11))))) [2019-11-23 23:32:14,984 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 413) no Hoare annotation was computed. [2019-11-23 23:32:14,984 INFO L444 ceAbstractionStarter]: For program point L202(lines 202 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L447 ceAbstractionStarter]: At program point L600(lines 600 617) the Hoare annotation is: true [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L402(lines 402 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L337(lines 337 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L404(lines 404 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 413) no Hoare annotation was computed. [2019-11-23 23:32:14,985 INFO L444 ceAbstractionStarter]: For program point L407(lines 407 413) no Hoare annotation was computed. [2019-11-23 23:32:14,986 INFO L444 ceAbstractionStarter]: For program point L143(lines 143 413) no Hoare annotation was computed. [2019-11-23 23:32:14,986 INFO L440 ceAbstractionStarter]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (not (= ~a25~0 1))) (.cse1 (= ~a17~0 8))) (or (= ~a28~0 9) (= ~a19~0 1) (and (= ~a28~0 10) .cse0) (and .cse0 .cse1) (and .cse1 (not (= ~a28~0 11))))) [2019-11-23 23:32:14,986 INFO L444 ceAbstractionStarter]: For program point L276(lines 276 413) no Hoare annotation was computed. [2019-11-23 23:32:14,986 INFO L444 ceAbstractionStarter]: For program point L409(lines 409 413) no Hoare annotation was computed. [2019-11-23 23:32:14,986 INFO L444 ceAbstractionStarter]: For program point L212(lines 212 413) no Hoare annotation was computed. [2019-11-23 23:32:14,986 INFO L444 ceAbstractionStarter]: For program point L280(lines 280 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L148(lines 148 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L82(lines 82 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L611(line 611) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L215(lines 215 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L349(lines 349 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point L283(lines 283 413) no Hoare annotation was computed. [2019-11-23 23:32:14,987 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L218(lines 218 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L286(lines 286 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L154(lines 154 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L354(lines 354 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L223(lines 223 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L91(lines 91 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L291(lines 291 413) no Hoare annotation was computed. [2019-11-23 23:32:14,988 INFO L444 ceAbstractionStarter]: For program point L225(lines 225 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L159(lines 159 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L293(lines 293 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L361(lines 361 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L297(lines 297 413) no Hoare annotation was computed. [2019-11-23 23:32:14,989 INFO L444 ceAbstractionStarter]: For program point L165(lines 165 413) no Hoare annotation was computed. [2019-11-23 23:32:14,990 INFO L444 ceAbstractionStarter]: For program point L99(lines 99 413) no Hoare annotation was computed. [2019-11-23 23:32:14,990 INFO L444 ceAbstractionStarter]: For program point L232(lines 232 413) no Hoare annotation was computed. [2019-11-23 23:32:14,990 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 413) no Hoare annotation was computed. [2019-11-23 23:32:15,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:32:15 BoogieIcfgContainer [2019-11-23 23:32:15,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 23:32:15,011 INFO L168 Benchmark]: Toolchain (without parser) took 8034.71 ms. Allocated memory was 145.8 MB in the beginning and 305.7 MB in the end (delta: 159.9 MB). Free memory was 101.4 MB in the beginning and 118.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 142.6 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,012 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 23:32:15,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 886.54 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 101.2 MB in the beginning and 167.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 206.6 MB. Free memory was 167.6 MB in the beginning and 162.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,015 INFO L168 Benchmark]: Boogie Preprocessor took 61.69 ms. Allocated memory is still 206.6 MB. Free memory was 162.2 MB in the beginning and 157.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,016 INFO L168 Benchmark]: RCFGBuilder took 2116.72 ms. Allocated memory was 206.6 MB in the beginning and 246.4 MB in the end (delta: 39.8 MB). Free memory was 157.4 MB in the beginning and 176.2 MB in the end (delta: -18.7 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,017 INFO L168 Benchmark]: TraceAbstraction took 4860.09 ms. Allocated memory was 246.4 MB in the beginning and 305.7 MB in the end (delta: 59.2 MB). Free memory was 176.2 MB in the beginning and 118.7 MB in the end (delta: 57.4 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. [2019-11-23 23:32:15,021 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory is still 121.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 886.54 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 101.2 MB in the beginning and 167.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 104.96 ms. Allocated memory is still 206.6 MB. Free memory was 167.6 MB in the beginning and 162.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.69 ms. Allocated memory is still 206.6 MB. Free memory was 162.2 MB in the beginning and 157.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2116.72 ms. Allocated memory was 206.6 MB in the beginning and 246.4 MB in the end (delta: 39.8 MB). Free memory was 157.4 MB in the beginning and 176.2 MB in the end (delta: -18.7 MB). Peak memory consumption was 105.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4860.09 ms. Allocated memory was 246.4 MB in the beginning and 305.7 MB in the end (delta: 59.2 MB). Free memory was 176.2 MB in the beginning and 118.7 MB in the end (delta: 57.4 MB). Peak memory consumption was 116.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 577]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((a28 == 9 || a19 == 1) || (a28 == 10 && !(a25 == 1))) || (!(a25 == 1) && a17 == 8)) || (a17 == 8 && !(a28 == 11)) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((a28 == 9 || a19 == 1) || (a28 == 10 && !(a25 == 1))) || (!(a25 == 1) && a17 == 8)) || (a17 == 8 && !(a28 == 11)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 273 SDtfs, 712 SDslu, 76 SDs, 0 SdLazy, 2143 SolverSat, 526 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1203occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 402 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 50 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 688 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 78 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 489 NumberOfCodeBlocks, 489 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 484 ConstructedInterpolants, 0 QuantifiedInterpolants, 97019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 96/96 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...