./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product44.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_spec1_product44.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 d4eb13f545cea9ac583f40da9d0bc0269dc50786 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:04:41,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:04:41,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:04:41,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:04:41,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:04:41,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:04:41,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:04:41,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:04:41,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:04:41,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:04:41,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:04:41,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:04:41,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:04:41,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:04:41,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:04:41,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:04:41,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:04:41,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:04:41,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:04:41,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:04:41,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:04:41,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:04:41,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:04:41,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:04:41,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:04:41,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:04:41,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:04:41,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:04:41,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:04:41,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:04:41,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:04:41,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:04:41,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:04:41,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:04:41,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:04:41,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:04:41,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:04:41,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:04:41,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:04:41,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:04:41,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:04:41,334 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:04:41,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:04:41,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:04:41,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:04:41,395 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:04:41,396 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:04:41,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:04:41,396 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:04:41,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:04:41,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:04:41,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:04:41,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:04:41,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:04:41,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:04:41,399 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:04:41,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:04:41,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:04:41,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:04:41,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:04:41,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:04:41,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:04:41,401 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:04:41,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:04:41,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:04:41,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:04:41,402 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:04:41,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:04:41,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:04:41,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:04:41,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:04:41,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eb13f545cea9ac583f40da9d0bc0269dc50786 [2020-10-25 23:04:41,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:04:41,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:04:41,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:04:41,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:04:41,926 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:04:41,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-10-25 23:04:42,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e83c0f7/9e48e2c6940741019cb33b58396e8315/FLAG856fc2cf8 [2020-10-25 23:04:42,680 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:04:42,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-10-25 23:04:42,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e83c0f7/9e48e2c6940741019cb33b58396e8315/FLAG856fc2cf8 [2020-10-25 23:04:42,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e83c0f7/9e48e2c6940741019cb33b58396e8315 [2020-10-25 23:04:42,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:04:43,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:04:43,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:04:43,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:04:43,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:04:43,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:04:42" (1/1) ... [2020-10-25 23:04:43,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcea3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43, skipping insertion in model container [2020-10-25 23:04:43,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:04:42" (1/1) ... [2020-10-25 23:04:43,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:04:43,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:04:43,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:04:43,413 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:04:43,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:04:43,593 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:04:43,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43 WrapperNode [2020-10-25 23:04:43,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:04:43,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:04:43,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:04:43,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:04:43,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:04:43,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:04:43,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:04:43,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:04:43,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (1/1) ... [2020-10-25 23:04:43,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:04:43,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:04:43,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:04:43,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:04:43,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (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 23:04:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:04:43,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:04:43,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:04:43,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:04:44,838 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:04:44,838 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-10-25 23:04:44,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:04:44 BoogieIcfgContainer [2020-10-25 23:04:44,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:04:44,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:04:44,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:04:44,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:04:44,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:04:42" (1/3) ... [2020-10-25 23:04:44,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f2f4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:04:44, skipping insertion in model container [2020-10-25 23:04:44,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:04:43" (2/3) ... [2020-10-25 23:04:44,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f2f4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:04:44, skipping insertion in model container [2020-10-25 23:04:44,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:04:44" (3/3) ... [2020-10-25 23:04:44,850 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-10-25 23:04:44,863 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:04:44,869 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:04:44,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:04:44,911 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:04:44,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:04:44,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:04:44,912 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:04:44,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:04:44,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:04:44,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:04:44,913 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:04:44,931 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-10-25 23:04:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:04:44,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:44,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:04:44,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:44,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:44,947 INFO L82 PathProgramCache]: Analyzing trace with hash -807964332, now seen corresponding path program 1 times [2020-10-25 23:04:44,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:44,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766552776] [2020-10-25 23:04:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:45,316 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 23:04:45,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766552776] [2020-10-25 23:04:45,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:45,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:04:45,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587003297] [2020-10-25 23:04:45,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:04:45,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:45,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:04:45,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:04:45,350 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2020-10-25 23:04:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:45,387 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2020-10-25 23:04:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:04:45,389 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:04:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:45,401 INFO L225 Difference]: With dead ends: 175 [2020-10-25 23:04:45,402 INFO L226 Difference]: Without dead ends: 85 [2020-10-25 23:04:45,406 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 23:04:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-10-25 23:04:45,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-10-25 23:04:45,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-25 23:04:45,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-10-25 23:04:45,455 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-10-25 23:04:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:45,456 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-10-25 23:04:45,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:04:45,456 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-10-25 23:04:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:04:45,457 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:45,457 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 23:04:45,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:04:45,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:45,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1854721229, now seen corresponding path program 1 times [2020-10-25 23:04:45,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:45,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048258203] [2020-10-25 23:04:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:45,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:45,616 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 23:04:45,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048258203] [2020-10-25 23:04:45,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:45,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:04:45,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18254062] [2020-10-25 23:04:45,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:04:45,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:45,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:04:45,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:04:45,626 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-10-25 23:04:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:45,651 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-10-25 23:04:45,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:04:45,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:04:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:45,655 INFO L225 Difference]: With dead ends: 85 [2020-10-25 23:04:45,655 INFO L226 Difference]: Without dead ends: 39 [2020-10-25 23:04:45,656 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 23:04:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-25 23:04:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-25 23:04:45,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-25 23:04:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-10-25 23:04:45,669 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-10-25 23:04:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:45,670 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-10-25 23:04:45,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:04:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-10-25 23:04:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:04:45,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:45,673 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 23:04:45,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:04:45,673 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:45,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2020-10-25 23:04:45,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:45,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23521879] [2020-10-25 23:04:45,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:45,756 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 23:04:45,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23521879] [2020-10-25 23:04:45,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:45,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:04:45,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288969723] [2020-10-25 23:04:45,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:04:45,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:45,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:04:45,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:04:45,759 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-10-25 23:04:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:45,829 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2020-10-25 23:04:45,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:04:45,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-25 23:04:45,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:45,831 INFO L225 Difference]: With dead ends: 105 [2020-10-25 23:04:45,831 INFO L226 Difference]: Without dead ends: 72 [2020-10-25 23:04:45,832 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 23:04:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-25 23:04:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-10-25 23:04:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-25 23:04:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-10-25 23:04:45,854 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2020-10-25 23:04:45,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:45,855 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-10-25 23:04:45,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:04:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-10-25 23:04:45,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-25 23:04:45,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:45,859 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 23:04:45,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:04:45,860 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:45,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:45,862 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2020-10-25 23:04:45,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:45,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843602533] [2020-10-25 23:04:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:45,985 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 23:04:45,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843602533] [2020-10-25 23:04:45,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:45,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:04:45,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392101224] [2020-10-25 23:04:45,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:04:45,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:45,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:04:45,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:04:45,990 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2020-10-25 23:04:46,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:46,038 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-10-25 23:04:46,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:04:46,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-25 23:04:46,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:46,041 INFO L225 Difference]: With dead ends: 171 [2020-10-25 23:04:46,041 INFO L226 Difference]: Without dead ends: 109 [2020-10-25 23:04:46,042 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 23:04:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-25 23:04:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-10-25 23:04:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-25 23:04:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2020-10-25 23:04:46,057 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2020-10-25 23:04:46,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:46,057 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2020-10-25 23:04:46,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:04:46,058 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2020-10-25 23:04:46,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:04:46,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:46,059 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 23:04:46,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:04:46,059 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:46,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:46,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2020-10-25 23:04:46,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:46,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566746710] [2020-10-25 23:04:46,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:46,181 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 23:04:46,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566746710] [2020-10-25 23:04:46,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:46,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:04:46,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713716233] [2020-10-25 23:04:46,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:04:46,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:46,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:04:46,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:04:46,186 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2020-10-25 23:04:46,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:46,319 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2020-10-25 23:04:46,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-25 23:04:46,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-25 23:04:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:46,325 INFO L225 Difference]: With dead ends: 535 [2020-10-25 23:04:46,325 INFO L226 Difference]: Without dead ends: 434 [2020-10-25 23:04:46,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:04:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-10-25 23:04:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2020-10-25 23:04:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-25 23:04:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2020-10-25 23:04:46,399 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2020-10-25 23:04:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:46,399 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2020-10-25 23:04:46,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:04:46,399 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2020-10-25 23:04:46,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:04:46,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:46,401 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] [2020-10-25 23:04:46,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:04:46,401 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:46,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:46,402 INFO L82 PathProgramCache]: Analyzing trace with hash -2056230884, now seen corresponding path program 1 times [2020-10-25 23:04:46,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:46,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945901429] [2020-10-25 23:04:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:46,498 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 23:04:46,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945901429] [2020-10-25 23:04:46,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:46,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:04:46,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202533339] [2020-10-25 23:04:46,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:04:46,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:46,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:04:46,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:04:46,501 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2020-10-25 23:04:46,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:46,658 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2020-10-25 23:04:46,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:04:46,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-25 23:04:46,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:46,663 INFO L225 Difference]: With dead ends: 572 [2020-10-25 23:04:46,663 INFO L226 Difference]: Without dead ends: 570 [2020-10-25 23:04:46,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:04:46,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-10-25 23:04:46,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2020-10-25 23:04:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-25 23:04:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2020-10-25 23:04:46,695 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2020-10-25 23:04:46,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:46,695 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2020-10-25 23:04:46,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:04:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2020-10-25 23:04:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-25 23:04:46,698 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:46,698 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] [2020-10-25 23:04:46,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:04:46,699 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:46,700 INFO L82 PathProgramCache]: Analyzing trace with hash 437867349, now seen corresponding path program 1 times [2020-10-25 23:04:46,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:46,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572304719] [2020-10-25 23:04:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:46,820 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 23:04:46,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572304719] [2020-10-25 23:04:46,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:46,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:04:46,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75653702] [2020-10-25 23:04:46,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:04:46,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:46,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:04:46,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:04:46,823 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2020-10-25 23:04:46,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:46,895 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2020-10-25 23:04:46,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:04:46,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-10-25 23:04:46,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:46,898 INFO L225 Difference]: With dead ends: 550 [2020-10-25 23:04:46,898 INFO L226 Difference]: Without dead ends: 358 [2020-10-25 23:04:46,900 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 23:04:46,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-25 23:04:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2020-10-25 23:04:46,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-10-25 23:04:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2020-10-25 23:04:46,927 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2020-10-25 23:04:46,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:46,927 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2020-10-25 23:04:46,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:04:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2020-10-25 23:04:46,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-25 23:04:46,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:46,930 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] [2020-10-25 23:04:46,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:04:46,930 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:46,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash -148938665, now seen corresponding path program 1 times [2020-10-25 23:04:46,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:46,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491635527] [2020-10-25 23:04:46,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:46,994 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 23:04:46,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491635527] [2020-10-25 23:04:46,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:46,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:04:46,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084714074] [2020-10-25 23:04:46,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:04:46,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:46,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:04:46,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:04:46,996 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2020-10-25 23:04:47,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:47,056 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2020-10-25 23:04:47,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:04:47,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-25 23:04:47,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:47,058 INFO L225 Difference]: With dead ends: 510 [2020-10-25 23:04:47,059 INFO L226 Difference]: Without dead ends: 306 [2020-10-25 23:04:47,060 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 [2020-10-25 23:04:47,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-25 23:04:47,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2020-10-25 23:04:47,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-25 23:04:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2020-10-25 23:04:47,081 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2020-10-25 23:04:47,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:47,082 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2020-10-25 23:04:47,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:04:47,082 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2020-10-25 23:04:47,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-25 23:04:47,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:47,084 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] [2020-10-25 23:04:47,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:04:47,085 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:47,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1428802343, now seen corresponding path program 1 times [2020-10-25 23:04:47,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:47,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558483807] [2020-10-25 23:04:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:47,136 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 23:04:47,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558483807] [2020-10-25 23:04:47,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:47,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:04:47,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356815072] [2020-10-25 23:04:47,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:04:47,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:47,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:04:47,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:04:47,139 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2020-10-25 23:04:47,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:47,191 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2020-10-25 23:04:47,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:04:47,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-25 23:04:47,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:47,194 INFO L225 Difference]: With dead ends: 530 [2020-10-25 23:04:47,194 INFO L226 Difference]: Without dead ends: 318 [2020-10-25 23:04:47,196 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 23:04:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-25 23:04:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-10-25 23:04:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-25 23:04:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2020-10-25 23:04:47,229 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2020-10-25 23:04:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:47,229 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2020-10-25 23:04:47,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:04:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2020-10-25 23:04:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:04:47,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:47,231 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, 1] [2020-10-25 23:04:47,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 23:04:47,232 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:47,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2020-10-25 23:04:47,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:47,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323282480] [2020-10-25 23:04:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:04:47,342 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 23:04:47,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323282480] [2020-10-25 23:04:47,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:04:47,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 23:04:47,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381542005] [2020-10-25 23:04:47,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:04:47,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:04:47,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:04:47,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:04:47,344 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2020-10-25 23:04:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:04:47,635 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2020-10-25 23:04:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-25 23:04:47,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-25 23:04:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:04:47,639 INFO L225 Difference]: With dead ends: 992 [2020-10-25 23:04:47,639 INFO L226 Difference]: Without dead ends: 680 [2020-10-25 23:04:47,641 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-25 23:04:47,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-10-25 23:04:47,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2020-10-25 23:04:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-10-25 23:04:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2020-10-25 23:04:47,681 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2020-10-25 23:04:47,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:04:47,682 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2020-10-25 23:04:47,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:04:47,682 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2020-10-25 23:04:47,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-25 23:04:47,684 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:04:47,684 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:04:47,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:04:47,684 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:04:47,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:04:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1089805871, now seen corresponding path program 1 times [2020-10-25 23:04:47,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:04:47,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196216889] [2020-10-25 23:04:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:04:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:04:47,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:04:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:04:47,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:04:47,905 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:04:47,906 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:04:47,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 23:04:48,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:04:48 BoogieIcfgContainer [2020-10-25 23:04:48,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:04:48,079 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:04:48,079 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:04:48,080 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:04:48,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:04:44" (3/4) ... [2020-10-25 23:04:48,083 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:04:48,238 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:04:48,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:04:48,241 INFO L168 Benchmark]: Toolchain (without parser) took 5262.69 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 41.7 MB in the beginning and 76.1 MB in the end (delta: -34.4 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,241 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory is still 25.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:04:48,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 582.68 ms. Allocated memory is still 56.6 MB. Free memory was 41.1 MB in the beginning and 33.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.61 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 30.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,243 INFO L168 Benchmark]: Boogie Preprocessor took 59.20 ms. Allocated memory is still 56.6 MB. Free memory was 30.0 MB in the beginning and 27.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,244 INFO L168 Benchmark]: RCFGBuilder took 1081.14 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.7 MB in the beginning and 45.1 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,244 INFO L168 Benchmark]: TraceAbstraction took 3236.03 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 44.7 MB in the beginning and 46.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,245 INFO L168 Benchmark]: Witness Printer took 159.28 ms. Allocated memory is still 100.7 MB. Free memory was 46.9 MB in the beginning and 76.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:04:48,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 46.1 MB. Free memory is still 25.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 582.68 ms. Allocated memory is still 56.6 MB. Free memory was 41.1 MB in the beginning and 33.4 MB in the end (delta: 7.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.61 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 30.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.20 ms. Allocated memory is still 56.6 MB. Free memory was 30.0 MB in the beginning and 27.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1081.14 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.7 MB in the beginning and 45.1 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3236.03 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 44.7 MB in the beginning and 46.9 MB in the end (delta: -2.2 MB). Peak memory consumption was 30.1 MB. Max. memory is 16.1 GB. * Witness Printer took 159.28 ms. Allocated memory is still 100.7 MB. Free memory was 46.9 MB in the beginning and 76.1 MB in the end (delta: -29.2 MB). Peak memory consumption was 18.9 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: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L695] int waterLevel = 1; [L696] int methaneLevelCritical = 0; [L853] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int retValue_acc ; [L847] retValue_acc = 1 [L848] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] tmp = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L713] COND TRUE waterLevel < 2 [L714] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] COND TRUE ! pumpRunning [L652] int retValue_acc ; [L653] int tmp ; [L654] int tmp___0 ; [L775] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] COND FALSE !(waterLevel < 2) [L782] retValue_acc = 0 [L783] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterSensorDry() [L660] COND FALSE !(\read(tmp)) [L663] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] retValue_acc = tmp___0 [L666] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] tmp = isHighWaterLevel() [L544] COND TRUE \read(tmp) [L571] int tmp ; [L596] int retValue_acc ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] retValue_acc = isMethaneLevelCritical() [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] tmp = isMethaneAlarm() [L577] COND FALSE !(\read(tmp)) [L565] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(methaneLevelCritical)) [L728] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L701] COND TRUE waterLevel > 0 [L702] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L540] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L795] tmp = isMethaneLevelCritical() [L797] COND TRUE \read(tmp) [L607] int retValue_acc ; [L610] retValue_acc = pumpRunning [L611] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L799] tmp___0 = isPumpRunning() [L801] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1037 SDslu, 1352 SDs, 0 SdLazy, 173 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 12224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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...