./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08266259dc0ecf0b11540043fa73fc4406b9f127 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:44:10,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:10,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:10,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:10,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:10,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:10,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:10,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:10,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:10,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:10,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:10,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:10,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:10,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:10,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:10,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:10,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:10,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:10,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:10,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:10,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:10,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:10,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:10,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:10,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:10,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:10,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:10,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:10,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:10,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:10,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:10,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:10,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:10,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:10,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:10,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:10,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:10,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:10,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:10,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:10,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:10,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:10,883 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:10,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:10,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:10,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:10,886 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:10,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:10,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:10,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:10,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:10,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:10,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:10,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:10,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:10,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:10,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:10,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:10,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:10,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:10,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:10,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:10,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:10,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:10,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:10,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:10,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:10,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:10,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:10,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:10,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:10,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08266259dc0ecf0b11540043fa73fc4406b9f127 [2020-10-20 01:44:11,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:11,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:11,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:11,174 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:11,175 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:11,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-10-20 01:44:11,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8626caf86/b5347486c88b4b718009c8fafdacd006/FLAG79572e3dd [2020-10-20 01:44:11,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:11,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product41.cil.c [2020-10-20 01:44:11,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8626caf86/b5347486c88b4b718009c8fafdacd006/FLAG79572e3dd [2020-10-20 01:44:12,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8626caf86/b5347486c88b4b718009c8fafdacd006 [2020-10-20 01:44:12,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:12,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:12,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:12,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:12,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:12,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5308761b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12, skipping insertion in model container [2020-10-20 01:44:12,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:12,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:12,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:12,528 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:12,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:12,650 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:12,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12 WrapperNode [2020-10-20 01:44:12,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:12,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:12,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:12,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:12,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:12,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:12,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:12,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:12,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (1/1) ... [2020-10-20 01:44:12,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:12,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:12,786 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:12,786 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:12,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (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 [2020-10-20 01:44:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:12,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:13,737 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:13,737 INFO L298 CfgBuilder]: Removed 120 assume(true) statements. [2020-10-20 01:44:13,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:13 BoogieIcfgContainer [2020-10-20 01:44:13,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:13,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:13,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:13,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:13,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:12" (1/3) ... [2020-10-20 01:44:13,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613dec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:13, skipping insertion in model container [2020-10-20 01:44:13,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:12" (2/3) ... [2020-10-20 01:44:13,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613dec0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:13, skipping insertion in model container [2020-10-20 01:44:13,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:13" (3/3) ... [2020-10-20 01:44:13,749 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-10-20 01:44:13,775 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:13,784 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:13,798 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:13,821 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:13,822 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:13,822 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:13,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:13,823 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:13,823 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:13,823 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:13,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:13,841 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-20 01:44:13,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:13,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:13,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:13,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:13,856 INFO L82 PathProgramCache]: Analyzing trace with hash -742459830, now seen corresponding path program 1 times [2020-10-20 01:44:13,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:13,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482504064] [2020-10-20 01:44:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:14,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:14,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482504064] [2020-10-20 01:44:14,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:14,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:14,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590045911] [2020-10-20 01:44:14,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:14,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:14,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:14,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:14,150 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-20 01:44:14,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:14,191 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-10-20 01:44:14,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:14,193 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:14,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:14,206 INFO L225 Difference]: With dead ends: 171 [2020-10-20 01:44:14,206 INFO L226 Difference]: Without dead ends: 83 [2020-10-20 01:44:14,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-20 01:44:14,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-20 01:44:14,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-20 01:44:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2020-10-20 01:44:14,268 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2020-10-20 01:44:14,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:14,269 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2020-10-20 01:44:14,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-10-20 01:44:14,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:14,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:14,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:14,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:14,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:14,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:14,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1789216727, now seen corresponding path program 1 times [2020-10-20 01:44:14,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:14,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530112105] [2020-10-20 01:44:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:14,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:14,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530112105] [2020-10-20 01:44:14,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:14,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:14,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441516733] [2020-10-20 01:44:14,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:14,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:14,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:14,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:14,430 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2020-10-20 01:44:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:14,443 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2020-10-20 01:44:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:14,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:14,445 INFO L225 Difference]: With dead ends: 83 [2020-10-20 01:44:14,445 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 01:44:14,446 INFO L677 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 [2020-10-20 01:44:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 01:44:14,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 01:44:14,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 01:44:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-10-20 01:44:14,452 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2020-10-20 01:44:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:14,453 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-10-20 01:44:14,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-10-20 01:44:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:14,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:14,454 INFO L422 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] [2020-10-20 01:44:14,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:14,454 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:14,455 INFO L82 PathProgramCache]: Analyzing trace with hash -2126819203, now seen corresponding path program 1 times [2020-10-20 01:44:14,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:14,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361280498] [2020-10-20 01:44:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:14,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361280498] [2020-10-20 01:44:14,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:14,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:14,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415749650] [2020-10-20 01:44:14,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:14,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:14,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:14,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:14,531 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2020-10-20 01:44:14,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:14,540 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2020-10-20 01:44:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:14,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:44:14,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:14,543 INFO L225 Difference]: With dead ends: 68 [2020-10-20 01:44:14,543 INFO L226 Difference]: Without dead ends: 37 [2020-10-20 01:44:14,544 INFO L677 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 [2020-10-20 01:44:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-20 01:44:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-20 01:44:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-20 01:44:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2020-10-20 01:44:14,550 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2020-10-20 01:44:14,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:14,550 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2020-10-20 01:44:14,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-10-20 01:44:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:44:14,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:14,552 INFO L422 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] [2020-10-20 01:44:14,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:14,553 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:14,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:14,554 INFO L82 PathProgramCache]: Analyzing trace with hash -306622024, now seen corresponding path program 1 times [2020-10-20 01:44:14,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:14,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094773213] [2020-10-20 01:44:14,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:14,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:14,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094773213] [2020-10-20 01:44:14,648 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:14,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:14,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704705083] [2020-10-20 01:44:14,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:14,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:14,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:14,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:14,650 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2020-10-20 01:44:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:14,677 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2020-10-20 01:44:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:14,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-20 01:44:14,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:14,679 INFO L225 Difference]: With dead ends: 89 [2020-10-20 01:44:14,679 INFO L226 Difference]: Without dead ends: 58 [2020-10-20 01:44:14,679 INFO L677 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 [2020-10-20 01:44:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-20 01:44:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-20 01:44:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 01:44:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2020-10-20 01:44:14,687 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2020-10-20 01:44:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:14,688 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2020-10-20 01:44:14,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2020-10-20 01:44:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-20 01:44:14,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:14,689 INFO L422 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] [2020-10-20 01:44:14,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:14,690 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:14,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:14,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1880803796, now seen corresponding path program 1 times [2020-10-20 01:44:14,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:14,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928849835] [2020-10-20 01:44:14,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:14,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:14,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928849835] [2020-10-20 01:44:14,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:14,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:14,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835017539] [2020-10-20 01:44:14,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:14,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:14,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:14,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:14,767 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2020-10-20 01:44:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:14,891 INFO L93 Difference]: Finished difference Result 203 states and 292 transitions. [2020-10-20 01:44:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:14,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-20 01:44:14,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:14,894 INFO L225 Difference]: With dead ends: 203 [2020-10-20 01:44:14,894 INFO L226 Difference]: Without dead ends: 153 [2020-10-20 01:44:14,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:14,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-20 01:44:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2020-10-20 01:44:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-20 01:44:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 134 transitions. [2020-10-20 01:44:14,910 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 134 transitions. Word has length 29 [2020-10-20 01:44:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:14,913 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 134 transitions. [2020-10-20 01:44:14,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 134 transitions. [2020-10-20 01:44:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:14,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:14,914 INFO L422 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] [2020-10-20 01:44:14,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:14,915 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:14,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:14,915 INFO L82 PathProgramCache]: Analyzing trace with hash 548279918, now seen corresponding path program 1 times [2020-10-20 01:44:14,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:14,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324337600] [2020-10-20 01:44:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:15,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:15,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324337600] [2020-10-20 01:44:15,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:15,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:15,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097537343] [2020-10-20 01:44:15,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:15,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:15,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:15,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:15,055 INFO L87 Difference]: Start difference. First operand 98 states and 134 transitions. Second operand 4 states. [2020-10-20 01:44:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:15,225 INFO L93 Difference]: Finished difference Result 196 states and 275 transitions. [2020-10-20 01:44:15,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:15,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-20 01:44:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:15,227 INFO L225 Difference]: With dead ends: 196 [2020-10-20 01:44:15,227 INFO L226 Difference]: Without dead ends: 146 [2020-10-20 01:44:15,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-20 01:44:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2020-10-20 01:44:15,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-20 01:44:15,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 197 transitions. [2020-10-20 01:44:15,245 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 197 transitions. Word has length 30 [2020-10-20 01:44:15,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:15,246 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 197 transitions. [2020-10-20 01:44:15,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:15,246 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 197 transitions. [2020-10-20 01:44:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:15,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:15,247 INFO L422 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] [2020-10-20 01:44:15,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:44:15,248 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:15,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:15,248 INFO L82 PathProgramCache]: Analyzing trace with hash 806445356, now seen corresponding path program 1 times [2020-10-20 01:44:15,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:15,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431698858] [2020-10-20 01:44:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:15,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:15,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431698858] [2020-10-20 01:44:15,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:15,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:15,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602540996] [2020-10-20 01:44:15,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:15,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:15,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:15,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:15,424 INFO L87 Difference]: Start difference. First operand 143 states and 197 transitions. Second operand 4 states. [2020-10-20 01:44:15,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:15,465 INFO L93 Difference]: Finished difference Result 382 states and 537 transitions. [2020-10-20 01:44:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:15,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2020-10-20 01:44:15,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:15,468 INFO L225 Difference]: With dead ends: 382 [2020-10-20 01:44:15,468 INFO L226 Difference]: Without dead ends: 286 [2020-10-20 01:44:15,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:15,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-20 01:44:15,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 143. [2020-10-20 01:44:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-20 01:44:15,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 196 transitions. [2020-10-20 01:44:15,490 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 196 transitions. Word has length 30 [2020-10-20 01:44:15,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:15,506 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 196 transitions. [2020-10-20 01:44:15,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 196 transitions. [2020-10-20 01:44:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:15,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:15,508 INFO L422 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] [2020-10-20 01:44:15,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:15,508 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:15,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:15,509 INFO L82 PathProgramCache]: Analyzing trace with hash 413418346, now seen corresponding path program 1 times [2020-10-20 01:44:15,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:15,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145674998] [2020-10-20 01:44:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:15,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145674998] [2020-10-20 01:44:15,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:15,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:44:15,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894258701] [2020-10-20 01:44:15,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:15,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:15,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:15,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:15,586 INFO L87 Difference]: Start difference. First operand 143 states and 196 transitions. Second operand 6 states. [2020-10-20 01:44:15,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:15,680 INFO L93 Difference]: Finished difference Result 484 states and 677 transitions. [2020-10-20 01:44:15,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:44:15,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-20 01:44:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:15,684 INFO L225 Difference]: With dead ends: 484 [2020-10-20 01:44:15,684 INFO L226 Difference]: Without dead ends: 347 [2020-10-20 01:44:15,685 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-20 01:44:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2020-10-20 01:44:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 149. [2020-10-20 01:44:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-20 01:44:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2020-10-20 01:44:15,722 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 30 [2020-10-20 01:44:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:15,722 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2020-10-20 01:44:15,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2020-10-20 01:44:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:44:15,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:15,725 INFO L422 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] [2020-10-20 01:44:15,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:15,726 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:15,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1022834337, now seen corresponding path program 1 times [2020-10-20 01:44:15,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:15,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345628705] [2020-10-20 01:44:15,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:15,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:15,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345628705] [2020-10-20 01:44:15,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:15,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:15,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117856240] [2020-10-20 01:44:15,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:15,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:15,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:15,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:15,808 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand 6 states. [2020-10-20 01:44:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:15,964 INFO L93 Difference]: Finished difference Result 773 states and 1048 transitions. [2020-10-20 01:44:15,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:15,965 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-20 01:44:15,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:15,969 INFO L225 Difference]: With dead ends: 773 [2020-10-20 01:44:15,969 INFO L226 Difference]: Without dead ends: 630 [2020-10-20 01:44:15,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-20 01:44:15,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 280. [2020-10-20 01:44:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-20 01:44:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 373 transitions. [2020-10-20 01:44:16,000 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 373 transitions. Word has length 33 [2020-10-20 01:44:16,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,000 INFO L481 AbstractCegarLoop]: Abstraction has 280 states and 373 transitions. [2020-10-20 01:44:16,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:16,000 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 373 transitions. [2020-10-20 01:44:16,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 01:44:16,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,002 INFO L422 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] [2020-10-20 01:44:16,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:16,003 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,003 INFO L82 PathProgramCache]: Analyzing trace with hash 752173025, now seen corresponding path program 1 times [2020-10-20 01:44:16,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236026874] [2020-10-20 01:44:16,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:16,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236026874] [2020-10-20 01:44:16,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:16,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809991534] [2020-10-20 01:44:16,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:16,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:16,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:16,066 INFO L87 Difference]: Start difference. First operand 280 states and 373 transitions. Second operand 5 states. [2020-10-20 01:44:16,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,248 INFO L93 Difference]: Finished difference Result 580 states and 779 transitions. [2020-10-20 01:44:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:16,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-20 01:44:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,251 INFO L225 Difference]: With dead ends: 580 [2020-10-20 01:44:16,251 INFO L226 Difference]: Without dead ends: 394 [2020-10-20 01:44:16,252 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:16,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-20 01:44:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 274. [2020-10-20 01:44:16,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-20 01:44:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 361 transitions. [2020-10-20 01:44:16,277 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 361 transitions. Word has length 33 [2020-10-20 01:44:16,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,277 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 361 transitions. [2020-10-20 01:44:16,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 361 transitions. [2020-10-20 01:44:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-20 01:44:16,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,280 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:16,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:16,280 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1819696723, now seen corresponding path program 1 times [2020-10-20 01:44:16,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925142954] [2020-10-20 01:44:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,366 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:16,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925142954] [2020-10-20 01:44:16,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:16,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285604913] [2020-10-20 01:44:16,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:16,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:16,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:16,370 INFO L87 Difference]: Start difference. First operand 274 states and 361 transitions. Second operand 5 states. [2020-10-20 01:44:16,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,435 INFO L93 Difference]: Finished difference Result 618 states and 817 transitions. [2020-10-20 01:44:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:16,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-20 01:44:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,438 INFO L225 Difference]: With dead ends: 618 [2020-10-20 01:44:16,438 INFO L226 Difference]: Without dead ends: 350 [2020-10-20 01:44:16,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-20 01:44:16,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 274. [2020-10-20 01:44:16,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-20 01:44:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 357 transitions. [2020-10-20 01:44:16,466 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 357 transitions. Word has length 47 [2020-10-20 01:44:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,466 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 357 transitions. [2020-10-20 01:44:16,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 357 transitions. [2020-10-20 01:44:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-20 01:44:16,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:16,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 01:44:16,469 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1965797483, now seen corresponding path program 1 times [2020-10-20 01:44:16,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301289729] [2020-10-20 01:44:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:16,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301289729] [2020-10-20 01:44:16,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:16,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:16,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649140159] [2020-10-20 01:44:16,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:16,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:16,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:16,548 INFO L87 Difference]: Start difference. First operand 274 states and 357 transitions. Second operand 5 states. [2020-10-20 01:44:16,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:16,606 INFO L93 Difference]: Finished difference Result 532 states and 697 transitions. [2020-10-20 01:44:16,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:16,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-20 01:44:16,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:16,608 INFO L225 Difference]: With dead ends: 532 [2020-10-20 01:44:16,608 INFO L226 Difference]: Without dead ends: 264 [2020-10-20 01:44:16,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-20 01:44:16,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 220. [2020-10-20 01:44:16,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-20 01:44:16,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2020-10-20 01:44:16,631 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 47 [2020-10-20 01:44:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:16,631 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2020-10-20 01:44:16,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2020-10-20 01:44:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-20 01:44:16,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:16,632 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-20 01:44:16,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:44:16,633 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:16,633 INFO L82 PathProgramCache]: Analyzing trace with hash -2134697109, now seen corresponding path program 1 times [2020-10-20 01:44:16,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:16,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773900966] [2020-10-20 01:44:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:16,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773900966] [2020-10-20 01:44:16,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770251528] [2020-10-20 01:44:16,702 INFO L95 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 [2020-10-20 01:44:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:16,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:16,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:16,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:16,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-20 01:44:16,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781430180] [2020-10-20 01:44:16,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:16,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:16,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:16,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:16,999 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand 6 states. [2020-10-20 01:44:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:17,330 INFO L93 Difference]: Finished difference Result 635 states and 843 transitions. [2020-10-20 01:44:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:17,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-10-20 01:44:17,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:17,334 INFO L225 Difference]: With dead ends: 635 [2020-10-20 01:44:17,335 INFO L226 Difference]: Without dead ends: 467 [2020-10-20 01:44:17,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2020-10-20 01:44:17,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 302. [2020-10-20 01:44:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-20 01:44:17,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 396 transitions. [2020-10-20 01:44:17,373 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 396 transitions. Word has length 48 [2020-10-20 01:44:17,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:17,375 INFO L481 AbstractCegarLoop]: Abstraction has 302 states and 396 transitions. [2020-10-20 01:44:17,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:17,375 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 396 transitions. [2020-10-20 01:44:17,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-20 01:44:17,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:17,377 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:17,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-20 01:44:17,591 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:17,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1767540063, now seen corresponding path program 2 times [2020-10-20 01:44:17,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:17,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329041314] [2020-10-20 01:44:17,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:17,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:17,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:17,827 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:44:17,827 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:44:17,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 01:44:18,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:18 BoogieIcfgContainer [2020-10-20 01:44:18,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:18,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:18,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:18,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:18,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:13" (3/4) ... [2020-10-20 01:44:18,007 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:44:18,178 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:18,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:18,181 INFO L168 Benchmark]: Toolchain (without parser) took 6139.02 ms. Allocated memory was 43.5 MB in the beginning and 91.8 MB in the end (delta: 48.2 MB). Free memory was 23.0 MB in the beginning and 57.4 MB in the end (delta: -34.5 MB). Peak memory consumption was 60.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,182 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.29 ms. Allocated memory is still 43.5 MB. Free memory was 22.0 MB in the beginning and 11.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.16 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 11.4 MB in the beginning and 28.3 MB in the end (delta: -16.9 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,183 INFO L168 Benchmark]: Boogie Preprocessor took 40.44 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 25.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,184 INFO L168 Benchmark]: RCFGBuilder took 953.59 ms. Allocated memory was 46.1 MB in the beginning and 49.8 MB in the end (delta: 3.7 MB). Free memory was 25.6 MB in the beginning and 11.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,184 INFO L168 Benchmark]: TraceAbstraction took 4262.38 ms. Allocated memory was 49.8 MB in the beginning and 91.2 MB in the end (delta: 41.4 MB). Free memory was 11.5 MB in the beginning and 35.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,185 INFO L168 Benchmark]: Witness Printer took 175.34 ms. Allocated memory was 91.2 MB in the beginning and 91.8 MB in the end (delta: 524.3 kB). Free memory was 35.8 MB in the beginning and 57.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:18,187 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 602.29 ms. Allocated memory is still 43.5 MB. Free memory was 22.0 MB in the beginning and 11.4 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 94.16 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 11.4 MB in the beginning and 28.3 MB in the end (delta: -16.9 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 40.44 ms. Allocated memory is still 46.1 MB. Free memory was 28.3 MB in the beginning and 25.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 953.59 ms. Allocated memory was 46.1 MB in the beginning and 49.8 MB in the end (delta: 3.7 MB). Free memory was 25.6 MB in the beginning and 11.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4262.38 ms. Allocated memory was 49.8 MB in the beginning and 91.2 MB in the end (delta: 41.4 MB). Free memory was 11.5 MB in the beginning and 35.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 14.3 GB. * Witness Printer took 175.34 ms. Allocated memory was 91.2 MB in the beginning and 91.8 MB in the end (delta: 524.3 kB). Free memory was 35.8 MB in the beginning and 57.4 MB in the end (delta: -21.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L387] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L824] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L897] int retValue_acc ; [L898] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L200] int retValue_acc ; [L203] retValue_acc = 1 [L204] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L904] tmp = valid_product() [L906] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int splverifierCounter ; [L588] int tmp ; [L589] int tmp___0 ; [L590] int tmp___1 ; [L591] int tmp___2 ; [L594] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L661] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE ! pumpRunning [L805] int retValue_acc ; [L806] int tmp ; [L807] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp = isHighWaterSensorDry() [L813] COND FALSE !(\read(tmp)) [L816] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] retValue_acc = tmp___0 [L819] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] tmp = isHighWaterLevel() [L697] COND TRUE \read(tmp) [L724] int tmp ; [L749] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L753] retValue_acc = isMethaneLevelCritical() [L755] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp = isMethaneAlarm() [L730] COND FALSE !(\read(tmp)) [L718] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L151] tmp = getWaterLevel() [L153] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L596] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L604] tmp = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L614] tmp___0 = __VERIFIER_nondet_int() [L616] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L624] tmp___2 = __VERIFIER_nondet_int() [L626] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L661] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L668] COND TRUE \read(systemActive) [L690] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L693] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L146] int tmp ; [L147] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L151] tmp = getWaterLevel() [L153] COND TRUE tmp == 0 [L760] int retValue_acc ; [L763] retValue_acc = pumpRunning [L764] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L155] tmp___0 = isPumpRunning() [L157] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product41.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1063 SDtfs, 1392 SDslu, 1649 SDs, 0 SdLazy, 238 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=13, 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, 13 MinimizatonAttempts, 1156 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 516 NumberOfCodeBlocks, 516 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 439 ConstructedInterpolants, 0 QuantifiedInterpolants, 29746 SizeOfPredicates, 4 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 50/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...