./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_product36.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 23207c417a082958369bf4db5eb1238fd6945f9c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-5485861 [2020-10-25 23:07:27,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:27,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:27,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:27,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:27,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:27,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:27,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:27,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:27,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:27,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:27,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:27,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:27,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:27,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:27,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:27,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:27,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:27,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:27,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:27,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:27,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:27,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:27,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:27,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:27,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:27,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:27,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:27,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:27,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:27,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:27,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:27,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:27,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:27,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:27,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:27,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:27,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:27,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:27,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:27,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:27,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:27,345 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:27,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:27,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:27,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:27,348 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:27,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:27,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:27,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:27,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:27,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:27,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:27,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:27,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:27,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:27,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:27,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:27,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:27,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:27,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:27,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:27,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:27,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:27,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:27,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:27,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:27,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:27,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:27,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:27,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:27,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23207c417a082958369bf4db5eb1238fd6945f9c [2020-10-25 23:07:27,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:27,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:27,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:27,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:27,811 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:27,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-10-25 23:07:27,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43432a90f/6e660df622d4445890b911ef93cbb294/FLAG724c3e872 [2020-10-25 23:07:28,697 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:28,698 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product36.cil.c [2020-10-25 23:07:28,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43432a90f/6e660df622d4445890b911ef93cbb294/FLAG724c3e872 [2020-10-25 23:07:29,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43432a90f/6e660df622d4445890b911ef93cbb294 [2020-10-25 23:07:29,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:29,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:29,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:29,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:29,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:29,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@495bc925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29, skipping insertion in model container [2020-10-25 23:07:29,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:29,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:29,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:29,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:29,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:29,694 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:29,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29 WrapperNode [2020-10-25 23:07:29,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:29,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:29,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:29,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:29,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:29,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:29,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:29,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:29,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (1/1) ... [2020-10-25 23:07:29,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:29,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:29,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:29,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:29,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (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 [2020-10-25 23:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:29,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:29,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:31,002 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:31,003 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-10-25 23:07:31,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:31 BoogieIcfgContainer [2020-10-25 23:07:31,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:31,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:31,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:31,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:31,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:29" (1/3) ... [2020-10-25 23:07:31,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ec8cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:31, skipping insertion in model container [2020-10-25 23:07:31,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:29" (2/3) ... [2020-10-25 23:07:31,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ec8cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:31, skipping insertion in model container [2020-10-25 23:07:31,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:31" (3/3) ... [2020-10-25 23:07:31,014 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-10-25 23:07:31,026 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:31,032 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:31,045 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:31,082 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:31,082 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:31,082 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:31,082 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:31,082 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:31,083 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:31,083 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:31,083 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:31,101 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-10-25 23:07:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:31,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:31,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1202040542, now seen corresponding path program 1 times [2020-10-25 23:07:31,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114615558] [2020-10-25 23:07:31,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:31,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114615558] [2020-10-25 23:07:31,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:31,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557734996] [2020-10-25 23:07:31,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:31,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:31,481 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-10-25 23:07:31,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:31,521 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-10-25 23:07:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:31,523 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:31,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:31,535 INFO L225 Difference]: With dead ends: 157 [2020-10-25 23:07:31,535 INFO L226 Difference]: Without dead ends: 76 [2020-10-25 23:07:31,539 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 [2020-10-25 23:07:31,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-25 23:07:31,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-25 23:07:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-25 23:07:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-10-25 23:07:31,585 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-10-25 23:07:31,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:31,585 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-10-25 23:07:31,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:31,586 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-10-25 23:07:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:31,587 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:31,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:31,588 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash 155283645, now seen corresponding path program 1 times [2020-10-25 23:07:31,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632571634] [2020-10-25 23:07:31,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:31,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632571634] [2020-10-25 23:07:31,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:31,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903910260] [2020-10-25 23:07:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:31,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:31,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:31,714 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-10-25 23:07:31,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:31,727 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-10-25 23:07:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:31,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:31,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:31,729 INFO L225 Difference]: With dead ends: 76 [2020-10-25 23:07:31,729 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 23:07:31,730 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 [2020-10-25 23:07:31,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 23:07:31,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 23:07:31,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 23:07:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-25 23:07:31,736 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-10-25 23:07:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:31,737 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-25 23:07:31,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-25 23:07:31,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:31,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,738 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] [2020-10-25 23:07:31,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:31,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1499295122, now seen corresponding path program 1 times [2020-10-25 23:07:31,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22452438] [2020-10-25 23:07:31,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:31,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22452438] [2020-10-25 23:07:31,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:31,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184953758] [2020-10-25 23:07:31,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:31,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:31,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:31,858 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 5 states. [2020-10-25 23:07:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:31,940 INFO L93 Difference]: Finished difference Result 89 states and 130 transitions. [2020-10-25 23:07:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:31,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-25 23:07:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:31,942 INFO L225 Difference]: With dead ends: 89 [2020-10-25 23:07:31,942 INFO L226 Difference]: Without dead ends: 59 [2020-10-25 23:07:31,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:31,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-25 23:07:31,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2020-10-25 23:07:31,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-25 23:07:31,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-10-25 23:07:31,963 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-10-25 23:07:31,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:31,963 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-10-25 23:07:31,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:31,964 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-10-25 23:07:31,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-25 23:07:31,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,965 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] [2020-10-25 23:07:31,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:31,965 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1870150441, now seen corresponding path program 1 times [2020-10-25 23:07:31,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068369902] [2020-10-25 23:07:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:32,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068369902] [2020-10-25 23:07:32,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:32,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:32,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983265445] [2020-10-25 23:07:32,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:32,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:32,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:32,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:32,046 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-10-25 23:07:32,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:32,082 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-10-25 23:07:32,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:32,082 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-25 23:07:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:32,084 INFO L225 Difference]: With dead ends: 125 [2020-10-25 23:07:32,084 INFO L226 Difference]: Without dead ends: 76 [2020-10-25 23:07:32,085 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 [2020-10-25 23:07:32,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-25 23:07:32,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-10-25 23:07:32,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-25 23:07:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-10-25 23:07:32,097 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-10-25 23:07:32,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:32,097 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-10-25 23:07:32,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-10-25 23:07:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:07:32,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:32,098 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] [2020-10-25 23:07:32,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:32,099 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:32,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:32,100 INFO L82 PathProgramCache]: Analyzing trace with hash 944519591, now seen corresponding path program 1 times [2020-10-25 23:07:32,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:32,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265395913] [2020-10-25 23:07:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:32,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265395913] [2020-10-25 23:07:32,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:32,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 23:07:32,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775840683] [2020-10-25 23:07:32,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:32,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:32,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:32,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:32,226 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2020-10-25 23:07:32,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:32,649 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2020-10-25 23:07:32,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 23:07:32,650 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-25 23:07:32,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:32,654 INFO L225 Difference]: With dead ends: 458 [2020-10-25 23:07:32,655 INFO L226 Difference]: Without dead ends: 390 [2020-10-25 23:07:32,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-25 23:07:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-25 23:07:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2020-10-25 23:07:32,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-25 23:07:32,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2020-10-25 23:07:32,721 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2020-10-25 23:07:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:32,722 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2020-10-25 23:07:32,723 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2020-10-25 23:07:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-25 23:07:32,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:32,729 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:32,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:32,730 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:32,731 INFO L82 PathProgramCache]: Analyzing trace with hash -545941251, now seen corresponding path program 1 times [2020-10-25 23:07:32,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:32,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182696963] [2020-10-25 23:07:32,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,839 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:32,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182696963] [2020-10-25 23:07:32,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899948493] [2020-10-25 23:07:32,840 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 [2020-10-25 23:07:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 23:07:32,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:33,057 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:33,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 23:07:33,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-25 23:07:33,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887343033] [2020-10-25 23:07:33,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:33,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:33,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:33,060 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2020-10-25 23:07:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:33,168 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2020-10-25 23:07:33,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:33,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-25 23:07:33,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:33,171 INFO L225 Difference]: With dead ends: 423 [2020-10-25 23:07:33,171 INFO L226 Difference]: Without dead ends: 298 [2020-10-25 23:07:33,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:33,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-25 23:07:33,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2020-10-25 23:07:33,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-25 23:07:33,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2020-10-25 23:07:33,222 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 41 [2020-10-25 23:07:33,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,223 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2020-10-25 23:07:33,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:33,224 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2020-10-25 23:07:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 23:07:33,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,233 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] [2020-10-25 23:07:33,451 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 23:07:33,452 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1811443464, now seen corresponding path program 1 times [2020-10-25 23:07:33,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999711918] [2020-10-25 23:07:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:33,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999711918] [2020-10-25 23:07:33,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:33,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:33,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987600603] [2020-10-25 23:07:33,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:33,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:33,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:33,542 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2020-10-25 23:07:33,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:33,642 INFO L93 Difference]: Finished difference Result 877 states and 1232 transitions. [2020-10-25 23:07:33,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:33,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-25 23:07:33,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:33,646 INFO L225 Difference]: With dead ends: 877 [2020-10-25 23:07:33,647 INFO L226 Difference]: Without dead ends: 596 [2020-10-25 23:07:33,648 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 [2020-10-25 23:07:33,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-10-25 23:07:33,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 299. [2020-10-25 23:07:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-25 23:07:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2020-10-25 23:07:33,680 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2020-10-25 23:07:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,681 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2020-10-25 23:07:33,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:33,681 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2020-10-25 23:07:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 23:07:33,682 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,683 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] [2020-10-25 23:07:33,683 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:07:33,683 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1670894854, now seen corresponding path program 1 times [2020-10-25 23:07:33,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260318076] [2020-10-25 23:07:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,755 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:33,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260318076] [2020-10-25 23:07:33,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:33,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 23:07:33,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844015668] [2020-10-25 23:07:33,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:33,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:33,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:33,758 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 6 states. [2020-10-25 23:07:33,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:33,869 INFO L93 Difference]: Finished difference Result 728 states and 1013 transitions. [2020-10-25 23:07:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:07:33,869 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-10-25 23:07:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:33,872 INFO L225 Difference]: With dead ends: 728 [2020-10-25 23:07:33,872 INFO L226 Difference]: Without dead ends: 435 [2020-10-25 23:07:33,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-25 23:07:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-25 23:07:33,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 274. [2020-10-25 23:07:33,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-25 23:07:33,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2020-10-25 23:07:33,903 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2020-10-25 23:07:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,904 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2020-10-25 23:07:33,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:33,904 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2020-10-25 23:07:33,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-25 23:07:33,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,905 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] [2020-10-25 23:07:33,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:07:33,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1627348998, now seen corresponding path program 1 times [2020-10-25 23:07:33,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319005083] [2020-10-25 23:07:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:34,006 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:34,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319005083] [2020-10-25 23:07:34,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148655697] [2020-10-25 23:07:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:34,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:07:34,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:34,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:07:34,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-25 23:07:34,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236040399] [2020-10-25 23:07:34,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:34,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:34,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:34,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:34,218 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2020-10-25 23:07:34,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:34,562 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2020-10-25 23:07:34,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-25 23:07:34,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-10-25 23:07:34,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:34,565 INFO L225 Difference]: With dead ends: 683 [2020-10-25 23:07:34,566 INFO L226 Difference]: Without dead ends: 456 [2020-10-25 23:07:34,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-25 23:07:34,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-25 23:07:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2020-10-25 23:07:34,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-25 23:07:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2020-10-25 23:07:34,598 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2020-10-25 23:07:34,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:34,600 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2020-10-25 23:07:34,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:34,601 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2020-10-25 23:07:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-25 23:07:34,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:34,602 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] [2020-10-25 23:07:34,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:34,818 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:34,819 INFO L82 PathProgramCache]: Analyzing trace with hash -232463738, now seen corresponding path program 2 times [2020-10-25 23:07:34,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:34,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368538555] [2020-10-25 23:07:34,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:07:34,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:07:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:07:34,986 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:07:35,062 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:07:35,062 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:07:35,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:07:35,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:07:35 BoogieIcfgContainer [2020-10-25 23:07:35,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:07:35,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:07:35,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:07:35,259 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:07:35,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:31" (3/4) ... [2020-10-25 23:07:35,263 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:07:35,450 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:07:35,450 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:07:35,453 INFO L168 Benchmark]: Toolchain (without parser) took 6428.22 ms. Allocated memory was 46.1 MB in the beginning and 100.7 MB in the end (delta: 54.5 MB). Free memory was 22.3 MB in the beginning and 44.8 MB in the end (delta: -22.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,454 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:07:35,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.73 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.6 MB in the beginning and 38.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.02 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 35.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,456 INFO L168 Benchmark]: Boogie Preprocessor took 80.87 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 33.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,456 INFO L168 Benchmark]: RCFGBuilder took 1139.81 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 24.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,457 INFO L168 Benchmark]: TraceAbstraction took 4250.41 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 24.2 MB in the beginning and 67.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,457 INFO L168 Benchmark]: Witness Printer took 191.84 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 44.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 35.7 MB. Free memory was 19.9 MB in the beginning and 19.9 MB in the end (delta: 44.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 637.73 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 30.6 MB in the beginning and 38.8 MB in the end (delta: -8.2 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.02 ms. Allocated memory is still 56.6 MB. Free memory was 38.8 MB in the beginning and 35.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.87 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 33.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1139.81 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 24.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4250.41 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 24.2 MB in the beginning and 67.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 16.1 GB. * Witness Printer took 191.84 ms. Allocated memory is still 100.7 MB. Free memory was 67.8 MB in the beginning and 44.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 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: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L301] int cleanupTimeShifts = 4; [L613] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] int retValue_acc ; [L378] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] int retValue_acc ; [L429] retValue_acc = 1 [L430] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L384] tmp = valid_product() [L386] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND TRUE ! pumpRunning [L259] int retValue_acc ; [L260] int tmp ; [L261] int tmp___0 ; [L891] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(waterLevel < 2) [L898] retValue_acc = 0 [L899] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L265] tmp = isHighWaterSensorDry() [L267] COND FALSE !(\read(tmp)) [L270] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L272] retValue_acc = tmp___0 [L273] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] tmp = isHighWaterLevel() [L169] COND TRUE \read(tmp) [L190] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L911] tmp = getWaterLevel() [L913] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L296] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L817] COND TRUE waterLevel > 0 [L818] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] COND TRUE \read(systemActive) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] int tmp ; [L907] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L911] tmp = getWaterLevel() [L913] COND TRUE tmp == 0 [L214] int retValue_acc ; [L217] retValue_acc = pumpRunning [L218] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L915] tmp___0 = isPumpRunning() [L917] 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_product36.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, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 691 SDtfs, 1246 SDslu, 1372 SDs, 0 SdLazy, 222 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=7, 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, 9 MinimizatonAttempts, 896 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 423 NumberOfCodeBlocks, 423 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 24290 SizeOfPredicates, 4 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 75/86 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...