./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product35.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 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:44:05,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:05,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:05,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:05,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:05,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:05,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:05,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:05,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:06,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:06,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:06,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:06,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:06,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:06,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:06,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:06,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:06,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:06,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:06,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:06,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:06,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:06,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:06,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:06,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:06,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:06,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:06,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:06,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:06,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:06,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:06,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:06,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:06,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:06,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:06,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:06,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:06,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:06,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:06,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:06,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:06,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:06,098 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:06,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:06,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:06,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:06,101 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:06,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:06,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:06,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:06,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:06,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:06,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:06,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:06,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:06,103 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:06,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:06,103 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:06,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:06,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:06,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:06,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:06,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:06,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:06,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:06,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:06,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:06,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:06,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:06,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:06,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:06,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2020-10-20 01:44:06,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:06,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:06,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:06,334 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:06,334 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:06,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-10-20 01:44:06,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4b1bdb6/2776d519dbb64769a2db1e6cddc4adda/FLAGb2a1b207f [2020-10-20 01:44:06,976 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:06,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-10-20 01:44:06,989 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4b1bdb6/2776d519dbb64769a2db1e6cddc4adda/FLAGb2a1b207f [2020-10-20 01:44:07,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a4b1bdb6/2776d519dbb64769a2db1e6cddc4adda [2020-10-20 01:44:07,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:07,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:07,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:07,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:07,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:07,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64254a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07, skipping insertion in model container [2020-10-20 01:44:07,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:07,338 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:07,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:07,735 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:07,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:07,846 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:07,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07 WrapperNode [2020-10-20 01:44:07,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:07,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:07,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:07,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:07,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:07,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:07,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:07,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:07,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:07,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:08,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:08,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... [2020-10-20 01:44:08,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:08,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:08,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:08,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:08,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:08,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:08,905 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:08,905 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-10-20 01:44:08,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:08 BoogieIcfgContainer [2020-10-20 01:44:08,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:08,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:08,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:08,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:08,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:07" (1/3) ... [2020-10-20 01:44:08,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12601876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:08, skipping insertion in model container [2020-10-20 01:44:08,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:07" (2/3) ... [2020-10-20 01:44:08,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12601876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:08, skipping insertion in model container [2020-10-20 01:44:08,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:08" (3/3) ... [2020-10-20 01:44:08,926 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-10-20 01:44:08,938 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:08,946 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:08,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:08,987 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:08,988 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:08,988 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:08,988 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:08,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:08,989 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:08,989 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:08,989 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-10-20 01:44:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:09,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:09,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:09,016 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:09,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:09,023 INFO L82 PathProgramCache]: Analyzing trace with hash 349597533, now seen corresponding path program 1 times [2020-10-20 01:44:09,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:09,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058988585] [2020-10-20 01:44:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:09,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058988585] [2020-10-20 01:44:09,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:09,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:09,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970622113] [2020-10-20 01:44:09,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:09,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:09,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:09,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:09,333 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-10-20 01:44:09,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:09,364 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-10-20 01:44:09,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:09,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:09,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:09,378 INFO L225 Difference]: With dead ends: 157 [2020-10-20 01:44:09,378 INFO L226 Difference]: Without dead ends: 76 [2020-10-20 01:44:09,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-20 01:44:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-20 01:44:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-20 01:44:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-10-20 01:44:09,428 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-10-20 01:44:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:09,429 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-10-20 01:44:09,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:09,430 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-10-20 01:44:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:09,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:09,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:09,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:09,432 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:09,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:09,433 INFO L82 PathProgramCache]: Analyzing trace with hash -697159364, now seen corresponding path program 1 times [2020-10-20 01:44:09,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:09,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017622872] [2020-10-20 01:44:09,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:09,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017622872] [2020-10-20 01:44:09,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:09,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:09,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795002063] [2020-10-20 01:44:09,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:09,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:09,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:09,695 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-10-20 01:44:09,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:09,707 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-10-20 01:44:09,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:09,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:09,709 INFO L225 Difference]: With dead ends: 76 [2020-10-20 01:44:09,710 INFO L226 Difference]: Without dead ends: 36 [2020-10-20 01:44:09,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-20 01:44:09,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-20 01:44:09,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-20 01:44:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-20 01:44:09,718 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-10-20 01:44:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:09,718 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-20 01:44:09,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-20 01:44:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:09,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:09,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:09,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:09,721 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:09,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:09,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2020-10-20 01:44:09,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:09,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275462350] [2020-10-20 01:44:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:09,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275462350] [2020-10-20 01:44:09,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:09,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:09,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11901431] [2020-10-20 01:44:09,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:09,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:09,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:09,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:09,913 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 6 states. [2020-10-20 01:44:10,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:10,130 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-10-20 01:44:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:10,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-20 01:44:10,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:10,132 INFO L225 Difference]: With dead ends: 119 [2020-10-20 01:44:10,132 INFO L226 Difference]: Without dead ends: 89 [2020-10-20 01:44:10,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-20 01:44:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-10-20 01:44:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-20 01:44:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-10-20 01:44:10,148 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-10-20 01:44:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:10,148 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-10-20 01:44:10,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-10-20 01:44:10,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:44:10,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:10,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:10,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:10,150 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:10,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:10,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2020-10-20 01:44:10,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:10,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211985981] [2020-10-20 01:44:10,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:10,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211985981] [2020-10-20 01:44:10,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:10,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:10,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706719990] [2020-10-20 01:44:10,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:10,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:10,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:10,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:10,224 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-10-20 01:44:10,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:10,256 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-10-20 01:44:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:10,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-20 01:44:10,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:10,258 INFO L225 Difference]: With dead ends: 125 [2020-10-20 01:44:10,258 INFO L226 Difference]: Without dead ends: 76 [2020-10-20 01:44:10,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:10,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-20 01:44:10,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-10-20 01:44:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-20 01:44:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-10-20 01:44:10,271 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-10-20 01:44:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:10,272 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-10-20 01:44:10,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-10-20 01:44:10,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:44:10,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:10,273 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] [2020-10-20 01:44:10,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:10,274 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:10,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:10,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2020-10-20 01:44:10,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:10,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88186108] [2020-10-20 01:44:10,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:10,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:10,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88186108] [2020-10-20 01:44:10,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:10,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:44:10,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826956872] [2020-10-20 01:44:10,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:10,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:10,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:10,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:10,394 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2020-10-20 01:44:10,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:10,824 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2020-10-20 01:44:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:44:10,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-20 01:44:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:10,829 INFO L225 Difference]: With dead ends: 458 [2020-10-20 01:44:10,829 INFO L226 Difference]: Without dead ends: 390 [2020-10-20 01:44:10,831 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 [2020-10-20 01:44:10,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-20 01:44:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2020-10-20 01:44:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-20 01:44:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2020-10-20 01:44:10,866 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2020-10-20 01:44:10,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:10,866 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2020-10-20 01:44:10,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:10,867 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2020-10-20 01:44:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-20 01:44:10,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:10,870 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:10,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:10,870 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:10,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:10,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1507837382, now seen corresponding path program 1 times [2020-10-20 01:44:10,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:10,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331601480] [2020-10-20 01:44:10,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:10,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331601480] [2020-10-20 01:44:10,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164284266] [2020-10-20 01:44:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:11,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:44:11,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:11,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:11,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:11,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:44:11,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490150461] [2020-10-20 01:44:11,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:11,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:11,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:11,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:11,227 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2020-10-20 01:44:11,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:11,348 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2020-10-20 01:44:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:11,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-20 01:44:11,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:11,351 INFO L225 Difference]: With dead ends: 423 [2020-10-20 01:44:11,351 INFO L226 Difference]: Without dead ends: 298 [2020-10-20 01:44:11,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:11,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-20 01:44:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2020-10-20 01:44:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-20 01:44:11,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2020-10-20 01:44:11,401 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 40 [2020-10-20 01:44:11,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:11,402 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2020-10-20 01:44:11,402 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:11,402 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2020-10-20 01:44:11,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 01:44:11,404 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:11,404 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] [2020-10-20 01:44:11,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:44:11,621 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:11,621 INFO L82 PathProgramCache]: Analyzing trace with hash 69765016, now seen corresponding path program 1 times [2020-10-20 01:44:11,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:11,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463409355] [2020-10-20 01:44:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:11,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463409355] [2020-10-20 01:44:11,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:11,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:11,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195377449] [2020-10-20 01:44:11,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:11,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:11,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:11,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:11,715 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2020-10-20 01:44:11,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:11,788 INFO L93 Difference]: Finished difference Result 875 states and 1230 transitions. [2020-10-20 01:44:11,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:11,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-20 01:44:11,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:11,794 INFO L225 Difference]: With dead ends: 875 [2020-10-20 01:44:11,794 INFO L226 Difference]: Without dead ends: 594 [2020-10-20 01:44:11,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:11,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-20 01:44:11,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 299. [2020-10-20 01:44:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-20 01:44:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2020-10-20 01:44:11,849 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2020-10-20 01:44:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:11,852 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2020-10-20 01:44:11,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2020-10-20 01:44:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-20 01:44:11,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:11,864 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] [2020-10-20 01:44:11,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:11,868 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:11,869 INFO L82 PathProgramCache]: Analyzing trace with hash 210313626, now seen corresponding path program 1 times [2020-10-20 01:44:11,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:11,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134793128] [2020-10-20 01:44:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:11,940 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:11,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134793128] [2020-10-20 01:44:11,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:11,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:11,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278022919] [2020-10-20 01:44:11,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:11,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:11,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:11,942 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 4 states. [2020-10-20 01:44:11,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:11,994 INFO L93 Difference]: Finished difference Result 691 states and 965 transitions. [2020-10-20 01:44:11,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:11,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-20 01:44:11,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:11,997 INFO L225 Difference]: With dead ends: 691 [2020-10-20 01:44:11,997 INFO L226 Difference]: Without dead ends: 398 [2020-10-20 01:44:11,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:11,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-10-20 01:44:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 274. [2020-10-20 01:44:12,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-20 01:44:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2020-10-20 01:44:12,038 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2020-10-20 01:44:12,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:12,038 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2020-10-20 01:44:12,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:12,039 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2020-10-20 01:44:12,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-20 01:44:12,039 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:12,040 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] [2020-10-20 01:44:12,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:12,040 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:12,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:12,041 INFO L82 PathProgramCache]: Analyzing trace with hash 253859482, now seen corresponding path program 1 times [2020-10-20 01:44:12,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:12,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307964319] [2020-10-20 01:44:12,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:12,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:12,133 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:12,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307964319] [2020-10-20 01:44:12,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147518749] [2020-10-20 01:44:12,134 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 [2020-10-20 01:44:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:12,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:12,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:12,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:12,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 01:44:12,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436074865] [2020-10-20 01:44:12,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:12,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:12,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:12,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:12,321 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2020-10-20 01:44:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:12,587 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2020-10-20 01:44:12,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 01:44:12,588 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-10-20 01:44:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:12,591 INFO L225 Difference]: With dead ends: 683 [2020-10-20 01:44:12,591 INFO L226 Difference]: Without dead ends: 456 [2020-10-20 01:44:12,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-20 01:44:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-20 01:44:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2020-10-20 01:44:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-20 01:44:12,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2020-10-20 01:44:12,626 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2020-10-20 01:44:12,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:12,627 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2020-10-20 01:44:12,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:12,628 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2020-10-20 01:44:12,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-20 01:44:12,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:12,629 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] [2020-10-20 01:44:12,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:12,844 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:12,845 INFO L82 PathProgramCache]: Analyzing trace with hash 874038597, now seen corresponding path program 2 times [2020-10-20 01:44:12,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:12,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616647273] [2020-10-20 01:44:12,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:12,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:44:12,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:44:13,038 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:44:13,038 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:44:13,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:13,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:13 BoogieIcfgContainer [2020-10-20 01:44:13,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:13,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:13,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:13,190 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:13,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:08" (3/4) ... [2020-10-20 01:44:13,193 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:44:13,320 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:13,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:13,323 INFO L168 Benchmark]: Toolchain (without parser) took 6046.51 ms. Allocated memory was 36.2 MB in the beginning and 83.9 MB in the end (delta: 47.7 MB). Free memory was 14.1 MB in the beginning and 15.5 MB in the end (delta: -1.4 MB). Peak memory consumption was 46.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,323 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 33.6 MB. Free memory was 8.4 MB in the beginning and 8.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.50 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 13.1 MB in the beginning and 16.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.44 ms. Allocated memory was 44.6 MB in the beginning and 44.0 MB in the end (delta: -524.3 kB). Free memory was 16.8 MB in the beginning and 26.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,325 INFO L168 Benchmark]: Boogie Preprocessor took 81.10 ms. Allocated memory is still 44.0 MB. Free memory was 26.1 MB in the beginning and 23.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,325 INFO L168 Benchmark]: RCFGBuilder took 889.85 ms. Allocated memory was 44.0 MB in the beginning and 48.8 MB in the end (delta: 4.7 MB). Free memory was 23.6 MB in the beginning and 11.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,326 INFO L168 Benchmark]: TraceAbstraction took 4280.46 ms. Allocated memory was 48.8 MB in the beginning and 83.9 MB in the end (delta: 35.1 MB). Free memory was 10.8 MB in the beginning and 42.6 MB in the end (delta: -31.8 MB). Peak memory consumption was 39.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,326 INFO L168 Benchmark]: Witness Printer took 130.99 ms. Allocated memory is still 83.9 MB. Free memory was 42.6 MB in the beginning and 15.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:13,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 33.6 MB. Free memory was 8.4 MB in the beginning and 8.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 564.50 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 13.1 MB in the beginning and 16.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 88.44 ms. Allocated memory was 44.6 MB in the beginning and 44.0 MB in the end (delta: -524.3 kB). Free memory was 16.8 MB in the beginning and 26.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 81.10 ms. Allocated memory is still 44.0 MB. Free memory was 26.1 MB in the beginning and 23.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 889.85 ms. Allocated memory was 44.0 MB in the beginning and 48.8 MB in the end (delta: 4.7 MB). Free memory was 23.6 MB in the beginning and 11.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 22.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4280.46 ms. Allocated memory was 48.8 MB in the beginning and 83.9 MB in the end (delta: 35.1 MB). Free memory was 10.8 MB in the beginning and 42.6 MB in the end (delta: -31.8 MB). Peak memory consumption was 39.4 MB. Max. memory is 14.3 GB. * Witness Printer took 130.99 ms. Allocated memory is still 83.9 MB. Free memory was 42.6 MB in the beginning and 15.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L906] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] COND FALSE !(waterLevel < 2) [L913] retValue_acc = 0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] tmp___0 = isPumpRunning() [L129] 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_product35.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: 4.0s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 692 SDtfs, 1162 SDslu, 1407 SDs, 0 SdLazy, 217 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s 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, 887 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 24417 SizeOfPredicates, 4 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 73/84 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...