./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product57.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 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 23:07:44,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:44,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:45,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:45,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:45,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:45,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:45,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:45,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:45,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:45,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:45,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:45,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:45,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:45,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:45,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:45,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:45,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:45,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:45,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:45,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:45,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:45,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:45,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:45,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:45,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:45,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:45,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:45,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:45,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:45,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:45,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:45,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:45,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:45,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:45,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:45,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:45,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:45,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:45,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:45,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:45,085 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:45,136 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:45,136 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:45,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:45,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:45,140 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:45,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:45,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:45,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:45,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:45,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:45,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:45,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:45,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:45,143 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:45,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:45,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:45,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:45,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:45,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:45,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:45,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:45,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:45,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:45,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:45,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:45,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:45,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:45,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:45,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:45,147 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c6f182587f107e711c974ed9b8b1e5162ebb6f5 [2020-10-25 23:07:45,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:45,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:45,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:45,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:45,593 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:45,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-10-25 23:07:45,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fb1dc2c/cfbc85b6e6484278bc9b79f52f719093/FLAGbc00391cf [2020-10-25 23:07:46,482 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:46,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2020-10-25 23:07:46,507 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fb1dc2c/cfbc85b6e6484278bc9b79f52f719093/FLAGbc00391cf [2020-10-25 23:07:46,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2fb1dc2c/cfbc85b6e6484278bc9b79f52f719093 [2020-10-25 23:07:46,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:46,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:46,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:46,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:46,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:46,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:46" (1/1) ... [2020-10-25 23:07:46,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e572f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:46, skipping insertion in model container [2020-10-25 23:07:46,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:46" (1/1) ... [2020-10-25 23:07:46,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:46,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:47,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:47,254 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:47,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:47,434 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:47,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47 WrapperNode [2020-10-25 23:07:47,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:47,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:47,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:47,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:47,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:47,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:47,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:47,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:47,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:47,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:47,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:47,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:47,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:47,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:49,023 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:49,024 INFO L298 CfgBuilder]: Removed 198 assume(true) statements. [2020-10-25 23:07:49,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49 BoogieIcfgContainer [2020-10-25 23:07:49,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:49,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:49,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:49,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:49,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:46" (1/3) ... [2020-10-25 23:07:49,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233afadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:49, skipping insertion in model container [2020-10-25 23:07:49,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47" (2/3) ... [2020-10-25 23:07:49,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@233afadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:49, skipping insertion in model container [2020-10-25 23:07:49,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49" (3/3) ... [2020-10-25 23:07:49,036 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2020-10-25 23:07:49,050 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:49,056 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:49,070 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:49,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:49,098 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:49,098 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:49,098 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:49,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:49,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:49,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:49,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:49,120 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-10-25 23:07:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:49,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:49,128 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:49,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:49,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1794396740, now seen corresponding path program 1 times [2020-10-25 23:07:49,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:49,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501460069] [2020-10-25 23:07:49,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:49,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501460069] [2020-10-25 23:07:49,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:49,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:49,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362133893] [2020-10-25 23:07:49,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:49,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:49,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:49,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:49,504 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-10-25 23:07:49,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:49,551 INFO L93 Difference]: Finished difference Result 267 states and 398 transitions. [2020-10-25 23:07:49,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:49,553 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:49,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:49,566 INFO L225 Difference]: With dead ends: 267 [2020-10-25 23:07:49,566 INFO L226 Difference]: Without dead ends: 131 [2020-10-25 23:07:49,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-25 23:07:49,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-10-25 23:07:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-25 23:07:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-10-25 23:07:49,625 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-10-25 23:07:49,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:49,626 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-10-25 23:07:49,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-10-25 23:07:49,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:49,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:49,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:49,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:49,629 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1720251087, now seen corresponding path program 1 times [2020-10-25 23:07:49,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:49,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577204026] [2020-10-25 23:07:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:49,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577204026] [2020-10-25 23:07:49,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:49,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:49,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365829174] [2020-10-25 23:07:49,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:49,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:49,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:49,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:49,773 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-10-25 23:07:49,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:49,803 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-10-25 23:07:49,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:49,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:49,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:49,806 INFO L225 Difference]: With dead ends: 131 [2020-10-25 23:07:49,806 INFO L226 Difference]: Without dead ends: 53 [2020-10-25 23:07:49,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:49,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-25 23:07:49,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-25 23:07:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-25 23:07:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-10-25 23:07:49,826 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-10-25 23:07:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:49,827 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-10-25 23:07:49,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-10-25 23:07:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:49,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:49,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:49,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:49,829 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2020-10-25 23:07:49,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:49,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197720230] [2020-10-25 23:07:49,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:49,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197720230] [2020-10-25 23:07:49,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:49,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:49,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447840399] [2020-10-25 23:07:49,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:49,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:49,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:49,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:49,948 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-10-25 23:07:49,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:49,959 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-10-25 23:07:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:49,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-25 23:07:49,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:49,961 INFO L225 Difference]: With dead ends: 100 [2020-10-25 23:07:49,961 INFO L226 Difference]: Without dead ends: 53 [2020-10-25 23:07:49,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:49,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-25 23:07:49,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-25 23:07:49,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-25 23:07:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-10-25 23:07:49,969 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-10-25 23:07:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:49,970 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-10-25 23:07:49,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-10-25 23:07:49,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:07:49,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:49,971 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] [2020-10-25 23:07:49,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:49,971 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:49,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:49,972 INFO L82 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2020-10-25 23:07:49,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:49,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156138660] [2020-10-25 23:07:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:50,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:50,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156138660] [2020-10-25 23:07:50,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:50,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:50,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127823245] [2020-10-25 23:07:50,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:50,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:50,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:50,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:50,113 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-10-25 23:07:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:50,186 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-10-25 23:07:50,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:50,187 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:07:50,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:50,188 INFO L225 Difference]: With dead ends: 121 [2020-10-25 23:07:50,189 INFO L226 Difference]: Without dead ends: 74 [2020-10-25 23:07:50,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:50,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-25 23:07:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-10-25 23:07:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-25 23:07:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-10-25 23:07:50,209 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-10-25 23:07:50,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:50,210 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-10-25 23:07:50,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:50,211 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-10-25 23:07:50,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-25 23:07:50,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:50,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:50,213 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,214 INFO L82 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2020-10-25 23:07:50,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062116882] [2020-10-25 23:07:50,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:50,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062116882] [2020-10-25 23:07:50,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:50,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:50,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27626080] [2020-10-25 23:07:50,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:50,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:50,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:50,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:50,316 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-10-25 23:07:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:50,523 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-10-25 23:07:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:50,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-25 23:07:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:50,527 INFO L225 Difference]: With dead ends: 253 [2020-10-25 23:07:50,528 INFO L226 Difference]: Without dead ends: 187 [2020-10-25 23:07:50,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-25 23:07:50,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-10-25 23:07:50,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-25 23:07:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-10-25 23:07:50,551 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-10-25 23:07:50,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:50,551 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-10-25 23:07:50,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:50,552 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-10-25 23:07:50,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-25 23:07:50,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,554 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] [2020-10-25 23:07:50,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:50,555 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,555 INFO L82 PathProgramCache]: Analyzing trace with hash -1392623830, now seen corresponding path program 1 times [2020-10-25 23:07:50,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357372899] [2020-10-25 23:07:50,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:50,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357372899] [2020-10-25 23:07:50,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:50,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:50,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397138446] [2020-10-25 23:07:50,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:50,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:50,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:50,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:50,694 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-10-25 23:07:50,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:50,939 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-10-25 23:07:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:50,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-25 23:07:50,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:50,943 INFO L225 Difference]: With dead ends: 238 [2020-10-25 23:07:50,944 INFO L226 Difference]: Without dead ends: 172 [2020-10-25 23:07:50,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-25 23:07:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-10-25 23:07:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-25 23:07:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-10-25 23:07:50,968 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-10-25 23:07:50,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:50,969 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-10-25 23:07:50,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-10-25 23:07:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-25 23:07:50,970 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,971 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] [2020-10-25 23:07:50,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:07:50,971 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1134458392, now seen corresponding path program 1 times [2020-10-25 23:07:50,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915170983] [2020-10-25 23:07:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915170983] [2020-10-25 23:07:51,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:51,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025669577] [2020-10-25 23:07:51,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:51,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:51,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:51,049 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-10-25 23:07:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:51,149 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-10-25 23:07:51,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:51,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-25 23:07:51,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:51,152 INFO L225 Difference]: With dead ends: 473 [2020-10-25 23:07:51,152 INFO L226 Difference]: Without dead ends: 352 [2020-10-25 23:07:51,154 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 23:07:51,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-10-25 23:07:51,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-10-25 23:07:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-25 23:07:51,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-10-25 23:07:51,182 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-10-25 23:07:51,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:51,183 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-10-25 23:07:51,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:51,183 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-10-25 23:07:51,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-25 23:07:51,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:51,184 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] [2020-10-25 23:07:51,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:07:51,185 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:51,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:51,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1527485402, now seen corresponding path program 1 times [2020-10-25 23:07:51,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:51,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573964996] [2020-10-25 23:07:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573964996] [2020-10-25 23:07:51,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-25 23:07:51,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834631032] [2020-10-25 23:07:51,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:51,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:51,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:51,314 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 6 states. [2020-10-25 23:07:51,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:51,532 INFO L93 Difference]: Finished difference Result 592 states and 826 transitions. [2020-10-25 23:07:51,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:07:51,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-10-25 23:07:51,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:51,537 INFO L225 Difference]: With dead ends: 592 [2020-10-25 23:07:51,537 INFO L226 Difference]: Without dead ends: 429 [2020-10-25 23:07:51,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-25 23:07:51,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-10-25 23:07:51,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 178. [2020-10-25 23:07:51,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-25 23:07:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-10-25 23:07:51,572 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-10-25 23:07:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:51,573 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-10-25 23:07:51,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-10-25 23:07:51,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:07:51,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:51,583 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 23:07:51,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:07:51,584 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:51,585 INFO L82 PathProgramCache]: Analyzing trace with hash -987336539, now seen corresponding path program 1 times [2020-10-25 23:07:51,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:51,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956232615] [2020-10-25 23:07:51,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956232615] [2020-10-25 23:07:51,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:51,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255389005] [2020-10-25 23:07:51,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:51,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:51,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:51,770 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-10-25 23:07:52,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,068 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-10-25 23:07:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:07:52,070 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-10-25 23:07:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,075 INFO L225 Difference]: With dead ends: 912 [2020-10-25 23:07:52,076 INFO L226 Difference]: Without dead ends: 740 [2020-10-25 23:07:52,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-25 23:07:52,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-10-25 23:07:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-10-25 23:07:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-10-25 23:07:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-10-25 23:07:52,133 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-10-25 23:07:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,136 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-10-25 23:07:52,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:52,136 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-10-25 23:07:52,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:07:52,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,143 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 23:07:52,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 23:07:52,146 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,147 INFO L82 PathProgramCache]: Analyzing trace with hash 787670823, now seen corresponding path program 1 times [2020-10-25 23:07:52,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997849014] [2020-10-25 23:07:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:52,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997849014] [2020-10-25 23:07:52,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:52,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963176255] [2020-10-25 23:07:52,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:52,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:52,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:52,315 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-10-25 23:07:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,591 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-10-25 23:07:52,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:52,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-25 23:07:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,599 INFO L225 Difference]: With dead ends: 752 [2020-10-25 23:07:52,602 INFO L226 Difference]: Without dead ends: 510 [2020-10-25 23:07:52,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:52,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-25 23:07:52,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-10-25 23:07:52,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-25 23:07:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-10-25 23:07:52,648 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-10-25 23:07:52,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,648 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-10-25 23:07:52,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:52,649 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-10-25 23:07:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-25 23:07:52,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:07:52,651 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,651 INFO L82 PathProgramCache]: Analyzing trace with hash -905763614, now seen corresponding path program 1 times [2020-10-25 23:07:52,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226808494] [2020-10-25 23:07:52,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:52,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226808494] [2020-10-25 23:07:52,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:52,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504855691] [2020-10-25 23:07:52,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:52,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:52,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:52,739 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-10-25 23:07:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,884 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-10-25 23:07:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:52,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-25 23:07:52,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,888 INFO L225 Difference]: With dead ends: 753 [2020-10-25 23:07:52,889 INFO L226 Difference]: Without dead ends: 427 [2020-10-25 23:07:52,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:07:52,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-10-25 23:07:52,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-10-25 23:07:52,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-10-25 23:07:52,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-10-25 23:07:52,927 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-10-25 23:07:52,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,928 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-10-25 23:07:52,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-10-25 23:07:52,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-25 23:07:52,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,930 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 23:07:52,930 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,931 INFO L82 PathProgramCache]: Analyzing trace with hash -978150172, now seen corresponding path program 1 times [2020-10-25 23:07:52,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319122950] [2020-10-25 23:07:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:52,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319122950] [2020-10-25 23:07:52,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:52,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941143918] [2020-10-25 23:07:52,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:52,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:52,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:52,994 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-10-25 23:07:53,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,100 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-10-25 23:07:53,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:53,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-25 23:07:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,103 INFO L225 Difference]: With dead ends: 676 [2020-10-25 23:07:53,103 INFO L226 Difference]: Without dead ends: 350 [2020-10-25 23:07:53,104 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 23:07:53,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-25 23:07:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-10-25 23:07:53,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-25 23:07:53,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-10-25 23:07:53,135 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-10-25 23:07:53,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,136 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-10-25 23:07:53,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-10-25 23:07:53,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-25 23:07:53,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,138 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:53,138 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-25 23:07:53,138 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:53,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:53,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1543448920, now seen corresponding path program 1 times [2020-10-25 23:07:53,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:53,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206974303] [2020-10-25 23:07:53,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 23:07:53,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206974303] [2020-10-25 23:07:53,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:53,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:53,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681924410] [2020-10-25 23:07:53,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:53,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:53,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:53,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:53,217 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-10-25 23:07:53,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,374 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-10-25 23:07:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:53,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-25 23:07:53,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,379 INFO L225 Difference]: With dead ends: 878 [2020-10-25 23:07:53,380 INFO L226 Difference]: Without dead ends: 666 [2020-10-25 23:07:53,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:07:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-10-25 23:07:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-10-25 23:07:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-25 23:07:53,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-10-25 23:07:53,420 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-10-25 23:07:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,421 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-10-25 23:07:53,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-10-25 23:07:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-25 23:07:53,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,422 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:53,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 23:07:53,423 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:53,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:53,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1936475930, now seen corresponding path program 1 times [2020-10-25 23:07:53,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:53,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576604560] [2020-10-25 23:07:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 23:07:53,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576604560] [2020-10-25 23:07:53,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:53,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:53,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481257348] [2020-10-25 23:07:53,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:53,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:53,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:53,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:53,491 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-10-25 23:07:53,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,770 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-10-25 23:07:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:07:53,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-25 23:07:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,775 INFO L225 Difference]: With dead ends: 708 [2020-10-25 23:07:53,776 INFO L226 Difference]: Without dead ends: 706 [2020-10-25 23:07:53,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 23:07:53,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-10-25 23:07:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-10-25 23:07:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-25 23:07:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-10-25 23:07:53,815 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-10-25 23:07:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,816 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-10-25 23:07:53,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:53,816 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-10-25 23:07:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-25 23:07:53,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,818 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:53,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-25 23:07:53,818 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:53,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:53,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1296965935, now seen corresponding path program 1 times [2020-10-25 23:07:53,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:53,819 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896738785] [2020-10-25 23:07:53,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:53,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896738785] [2020-10-25 23:07:53,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639783358] [2020-10-25 23:07:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:54,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:07:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:54,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:07:54,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-25 23:07:54,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184645859] [2020-10-25 23:07:54,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:54,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:54,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:54,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:54,328 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-10-25 23:07:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:54,676 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-10-25 23:07:54,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:07:54,676 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-25 23:07:54,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:54,680 INFO L225 Difference]: With dead ends: 855 [2020-10-25 23:07:54,680 INFO L226 Difference]: Without dead ends: 637 [2020-10-25 23:07:54,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-25 23:07:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-10-25 23:07:54,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-10-25 23:07:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-25 23:07:54,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-10-25 23:07:54,737 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-10-25 23:07:54,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:54,738 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-10-25 23:07:54,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:54,738 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-10-25 23:07:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-25 23:07:54,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:54,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:54,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-25 23:07:54,954 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:54,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:54,955 INFO L82 PathProgramCache]: Analyzing trace with hash -309250713, now seen corresponding path program 2 times [2020-10-25 23:07:54,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:54,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179091218] [2020-10-25 23:07:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 23:07:55,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179091218] [2020-10-25 23:07:55,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:55,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:55,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553733329] [2020-10-25 23:07:55,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:55,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:55,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:55,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:55,126 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-10-25 23:07:55,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:55,658 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-10-25 23:07:55,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:07:55,658 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-25 23:07:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:55,663 INFO L225 Difference]: With dead ends: 1180 [2020-10-25 23:07:55,664 INFO L226 Difference]: Without dead ends: 846 [2020-10-25 23:07:55,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:55,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-10-25 23:07:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-10-25 23:07:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-10-25 23:07:55,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-10-25 23:07:55,762 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-10-25 23:07:55,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:55,762 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-10-25 23:07:55,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-10-25 23:07:55,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-25 23:07:55,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:55,764 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:55,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-25 23:07:55,764 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:55,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:55,765 INFO L82 PathProgramCache]: Analyzing trace with hash -34491099, now seen corresponding path program 1 times [2020-10-25 23:07:55,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:55,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583806270] [2020-10-25 23:07:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:55,842 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-25 23:07:55,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583806270] [2020-10-25 23:07:55,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810756003] [2020-10-25 23:07:55,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:56,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-25 23:07:56,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:56,097 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-25 23:07:56,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 23:07:56,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-10-25 23:07:56,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153180838] [2020-10-25 23:07:56,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:56,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:56,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:56,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:07:56,101 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-10-25 23:07:56,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:56,224 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-10-25 23:07:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:56,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-25 23:07:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:56,226 INFO L225 Difference]: With dead ends: 934 [2020-10-25 23:07:56,226 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 23:07:56,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-25 23:07:56,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 23:07:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 23:07:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 23:07:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 23:07:56,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-25 23:07:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:56,229 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 23:07:56,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 23:07:56,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 23:07:56,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-25 23:07:56,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 23:07:57,161 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 204 [2020-10-25 23:07:58,343 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 298 DAG size of output: 224 [2020-10-25 23:07:58,722 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 148 [2020-10-25 23:07:59,400 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 220 [2020-10-25 23:08:00,211 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 219 [2020-10-25 23:08:00,439 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 139 [2020-10-25 23:08:00,749 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 162 [2020-10-25 23:08:02,272 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 203 DAG size of output: 32 [2020-10-25 23:08:03,780 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 215 DAG size of output: 20 [2020-10-25 23:08:04,550 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 35 [2020-10-25 23:08:06,071 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 217 DAG size of output: 22 [2020-10-25 23:08:07,687 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 209 DAG size of output: 28 [2020-10-25 23:08:07,872 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 15 [2020-10-25 23:08:08,617 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 30 [2020-10-25 23:08:09,593 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 43 [2020-10-25 23:08:10,148 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 20 [2020-10-25 23:08:10,456 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 21 [2020-10-25 23:08:10,490 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,491 INFO L270 CegarLoopResult]: At program point L564(lines 560 566) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-25 23:08:10,491 INFO L270 CegarLoopResult]: At program point L135(lines 135 141) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2020-10-25 23:08:10,491 INFO L270 CegarLoopResult]: At program point L102(lines 55 103) the Hoare annotation is: false [2020-10-25 23:08:10,492 INFO L270 CegarLoopResult]: At program point L135-1(lines 135 141) the Hoare annotation is: false [2020-10-25 23:08:10,492 INFO L270 CegarLoopResult]: At program point L135-2(lines 135 141) the Hoare annotation is: false [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L270 CegarLoopResult]: At program point L500(lines 495 503) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L370(lines 370 374) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L370-3(lines 370 374) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L370-6(lines 370 374) no Hoare annotation was computed. [2020-10-25 23:08:10,492 INFO L274 CegarLoopResult]: For program point L306(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,493 INFO L274 CegarLoopResult]: For program point L306-2(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,493 INFO L274 CegarLoopResult]: For program point L306-3(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,493 INFO L274 CegarLoopResult]: For program point L306-5(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,493 INFO L274 CegarLoopResult]: For program point L306-6(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,494 INFO L274 CegarLoopResult]: For program point L306-8(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,494 INFO L274 CegarLoopResult]: For program point L306-9(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,494 INFO L274 CegarLoopResult]: For program point L306-11(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,494 INFO L274 CegarLoopResult]: For program point L306-12(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,494 INFO L274 CegarLoopResult]: For program point L306-14(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,495 INFO L274 CegarLoopResult]: For program point L306-15(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,495 INFO L274 CegarLoopResult]: For program point L306-17(lines 306 310) no Hoare annotation was computed. [2020-10-25 23:08:10,495 INFO L270 CegarLoopResult]: At program point L439(lines 434 442) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse1 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-10-25 23:08:10,495 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,495 INFO L270 CegarLoopResult]: At program point L439-1(lines 434 442) the Hoare annotation is: false [2020-10-25 23:08:10,496 INFO L270 CegarLoopResult]: At program point L439-2(lines 434 442) the Hoare annotation is: false [2020-10-25 23:08:10,496 INFO L274 CegarLoopResult]: For program point L76(lines 76 82) no Hoare annotation was computed. [2020-10-25 23:08:10,496 INFO L270 CegarLoopResult]: At program point L76-1(lines 76 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2020-10-25 23:08:10,496 INFO L270 CegarLoopResult]: At program point L407(lines 402 410) the Hoare annotation is: false [2020-10-25 23:08:10,496 INFO L270 CegarLoopResult]: At program point L407-1(lines 402 410) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2020-10-25 23:08:10,497 INFO L270 CegarLoopResult]: At program point L407-2(lines 402 410) the Hoare annotation is: false [2020-10-25 23:08:10,497 INFO L270 CegarLoopResult]: At program point L407-3(lines 402 410) the Hoare annotation is: false [2020-10-25 23:08:10,497 INFO L270 CegarLoopResult]: At program point L407-4(lines 402 410) the Hoare annotation is: false [2020-10-25 23:08:10,497 INFO L270 CegarLoopResult]: At program point L407-5(lines 402 410) the Hoare annotation is: false [2020-10-25 23:08:10,497 INFO L274 CegarLoopResult]: For program point L971(line 971) no Hoare annotation was computed. [2020-10-25 23:08:10,497 INFO L274 CegarLoopResult]: For program point L971-1(line 971) no Hoare annotation was computed. [2020-10-25 23:08:10,498 INFO L274 CegarLoopResult]: For program point L971-2(line 971) no Hoare annotation was computed. [2020-10-25 23:08:10,498 INFO L270 CegarLoopResult]: At program point L312(lines 297 315) the Hoare annotation is: false [2020-10-25 23:08:10,498 INFO L270 CegarLoopResult]: At program point L312-1(lines 297 315) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= 1 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (not .cse4)) (and .cse4 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 1) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)))) [2020-10-25 23:08:10,498 INFO L270 CegarLoopResult]: At program point L312-2(lines 297 315) the Hoare annotation is: false [2020-10-25 23:08:10,499 INFO L270 CegarLoopResult]: At program point L312-3(lines 297 315) the Hoare annotation is: false [2020-10-25 23:08:10,499 INFO L270 CegarLoopResult]: At program point L312-4(lines 297 315) the Hoare annotation is: false [2020-10-25 23:08:10,499 INFO L270 CegarLoopResult]: At program point L312-5(lines 297 315) the Hoare annotation is: false [2020-10-25 23:08:10,499 INFO L274 CegarLoopResult]: For program point L346(lines 346 359) no Hoare annotation was computed. [2020-10-25 23:08:10,499 INFO L270 CegarLoopResult]: At program point L346-1(lines 1 974) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (= ULTIMATE.start_activatePump_~tmp~3 0) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) .cse0 (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) .cse2 (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))))) [2020-10-25 23:08:10,500 INFO L274 CegarLoopResult]: For program point L346-2(lines 346 359) no Hoare annotation was computed. [2020-10-25 23:08:10,500 INFO L270 CegarLoopResult]: At program point L346-3(lines 1 974) the Hoare annotation is: false [2020-10-25 23:08:10,500 INFO L274 CegarLoopResult]: For program point L346-4(lines 346 359) no Hoare annotation was computed. [2020-10-25 23:08:10,500 INFO L270 CegarLoopResult]: At program point L346-5(lines 1 974) the Hoare annotation is: false [2020-10-25 23:08:10,500 INFO L270 CegarLoopResult]: At program point L248(lines 241 251) the Hoare annotation is: false [2020-10-25 23:08:10,501 INFO L270 CegarLoopResult]: At program point L248-1(lines 241 251) the Hoare annotation is: (and (not (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~1 0)) (not (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0))) [2020-10-25 23:08:10,501 INFO L270 CegarLoopResult]: At program point L248-2(lines 241 251) the Hoare annotation is: false [2020-10-25 23:08:10,501 INFO L270 CegarLoopResult]: At program point L248-3(lines 241 251) the Hoare annotation is: false [2020-10-25 23:08:10,501 INFO L270 CegarLoopResult]: At program point L248-4(lines 241 251) the Hoare annotation is: false [2020-10-25 23:08:10,501 INFO L270 CegarLoopResult]: At program point L248-5(lines 241 251) the Hoare annotation is: false [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447-1(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447-2(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447-3(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447-4(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,502 INFO L274 CegarLoopResult]: For program point L447-5(lines 447 453) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point L350(lines 350 356) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point L350-2(lines 350 356) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point L350-4(lines 350 356) no Hoare annotation was computed. [2020-10-25 23:08:10,503 INFO L274 CegarLoopResult]: For program point L86(lines 86 97) no Hoare annotation was computed. [2020-10-25 23:08:10,504 INFO L270 CegarLoopResult]: At program point L516-2(lines 516 530) the Hoare annotation is: false [2020-10-25 23:08:10,504 INFO L274 CegarLoopResult]: For program point L186(lines 186 203) no Hoare annotation was computed. [2020-10-25 23:08:10,504 INFO L274 CegarLoopResult]: For program point L186-1(lines 186 203) no Hoare annotation was computed. [2020-10-25 23:08:10,504 INFO L274 CegarLoopResult]: For program point L186-2(lines 186 203) no Hoare annotation was computed. [2020-10-25 23:08:10,504 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-25 23:08:10,504 INFO L270 CegarLoopResult]: At program point L452(lines 443 456) the Hoare annotation is: false [2020-10-25 23:08:10,505 INFO L270 CegarLoopResult]: At program point L452-1(lines 443 456) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-10-25 23:08:10,505 INFO L270 CegarLoopResult]: At program point L452-2(lines 443 456) the Hoare annotation is: false [2020-10-25 23:08:10,505 INFO L270 CegarLoopResult]: At program point L452-3(lines 443 456) the Hoare annotation is: false [2020-10-25 23:08:10,505 INFO L270 CegarLoopResult]: At program point L452-4(lines 443 456) the Hoare annotation is: false [2020-10-25 23:08:10,505 INFO L270 CegarLoopResult]: At program point L452-5(lines 443 456) the Hoare annotation is: false [2020-10-25 23:08:10,505 INFO L274 CegarLoopResult]: For program point L57(lines 56 101) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point L520-1(lines 128 134) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point L223(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point L190(lines 190 198) no Hoare annotation was computed. [2020-10-25 23:08:10,506 INFO L274 CegarLoopResult]: For program point L223-2(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L190-1(lines 190 198) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L190-2(lines 190 198) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L223-4(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L223-6(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,507 INFO L274 CegarLoopResult]: For program point L223-8(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,508 INFO L274 CegarLoopResult]: For program point L223-10(lines 223 229) no Hoare annotation was computed. [2020-10-25 23:08:10,508 INFO L274 CegarLoopResult]: For program point L587(lines 587 594) no Hoare annotation was computed. [2020-10-25 23:08:10,508 INFO L277 CegarLoopResult]: At program point L587-1(lines 587 594) the Hoare annotation is: true [2020-10-25 23:08:10,508 INFO L270 CegarLoopResult]: At program point L257(lines 252 260) the Hoare annotation is: false [2020-10-25 23:08:10,508 INFO L270 CegarLoopResult]: At program point L257-1(lines 252 260) the Hoare annotation is: false [2020-10-25 23:08:10,509 INFO L270 CegarLoopResult]: At program point L257-2(lines 252 260) the Hoare annotation is: false [2020-10-25 23:08:10,509 INFO L274 CegarLoopResult]: For program point L92(lines 92 96) no Hoare annotation was computed. [2020-10-25 23:08:10,509 INFO L274 CegarLoopResult]: For program point L92-2(lines 128 134) no Hoare annotation was computed. [2020-10-25 23:08:10,509 INFO L274 CegarLoopResult]: For program point L325(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,509 INFO L274 CegarLoopResult]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,509 INFO L274 CegarLoopResult]: For program point L325-3(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L160(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L325-5(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L160-1(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L325-6(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L160-2(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L160-3(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L325-8(lines 325 329) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 23:08:10,510 INFO L274 CegarLoopResult]: For program point L160-4(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,511 INFO L274 CegarLoopResult]: For program point L160-5(lines 160 177) no Hoare annotation was computed. [2020-10-25 23:08:10,511 INFO L270 CegarLoopResult]: At program point L128(lines 127 146) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse2 .cse1) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse1))) [2020-10-25 23:08:10,511 INFO L274 CegarLoopResult]: For program point L128-1(lines 128 134) no Hoare annotation was computed. [2020-10-25 23:08:10,511 INFO L270 CegarLoopResult]: At program point L128-2(lines 127 146) the Hoare annotation is: false [2020-10-25 23:08:10,512 INFO L270 CegarLoopResult]: At program point L128-3(lines 127 146) the Hoare annotation is: false [2020-10-25 23:08:10,512 INFO L270 CegarLoopResult]: At program point L492(lines 1 974) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-10-25 23:08:10,512 INFO L274 CegarLoopResult]: For program point L394(lines 394 398) no Hoare annotation was computed. [2020-10-25 23:08:10,512 INFO L274 CegarLoopResult]: For program point L164(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,512 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,512 INFO L274 CegarLoopResult]: For program point L164-2(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L274 CegarLoopResult]: For program point L164-3(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L274 CegarLoopResult]: For program point L164-4(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L274 CegarLoopResult]: For program point L164-5(lines 164 172) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:10,513 INFO L270 CegarLoopResult]: At program point L462(lines 457 465) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-25 23:08:10,514 INFO L270 CegarLoopResult]: At program point L462-1(lines 457 465) the Hoare annotation is: false [2020-10-25 23:08:10,514 INFO L270 CegarLoopResult]: At program point L462-2(lines 457 465) the Hoare annotation is: false [2020-10-25 23:08:10,514 INFO L274 CegarLoopResult]: For program point L66(lines 66 72) no Hoare annotation was computed. [2020-10-25 23:08:10,514 INFO L270 CegarLoopResult]: At program point L66-1(lines 66 72) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse2 .cse3 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~3 0) .cse0 .cse1 .cse3))) [2020-10-25 23:08:10,514 INFO L270 CegarLoopResult]: At program point L331(lines 316 334) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~3 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|)) [2020-10-25 23:08:10,515 INFO L270 CegarLoopResult]: At program point L331-1(lines 316 334) the Hoare annotation is: false [2020-10-25 23:08:10,515 INFO L270 CegarLoopResult]: At program point L331-2(lines 316 334) the Hoare annotation is: false [2020-10-25 23:08:10,515 INFO L277 CegarLoopResult]: At program point L596(lines 577 599) the Hoare annotation is: true [2020-10-25 23:08:10,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:08:10 BoogieIcfgContainer [2020-10-25 23:08:10,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:08:10,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:08:10,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:08:10,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:08:10,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49" (3/4) ... [2020-10-25 23:08:10,579 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 23:08:10,601 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-25 23:08:10,603 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-25 23:08:10,604 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 23:08:10,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 23:08:10,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 23:08:10,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:08:10,610 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:08:10,638 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) [2020-10-25 23:08:10,638 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2020-10-25 23:08:10,640 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-10-25 23:08:10,641 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) [2020-10-25 23:08:10,642 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-10-25 23:08:10,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-25 23:08:10,643 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result [2020-10-25 23:08:10,644 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-10-25 23:08:10,646 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2020-10-25 23:08:10,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) [2020-10-25 23:08:10,740 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:08:10,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:08:10,741 INFO L168 Benchmark]: Toolchain (without parser) took 23986.60 ms. Allocated memory was 41.9 MB in the beginning and 272.6 MB in the end (delta: 230.7 MB). Free memory was 18.9 MB in the beginning and 186.6 MB in the end (delta: -167.8 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,742 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:08:10,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.00 ms. Allocated memory is still 41.9 MB. Free memory was 18.2 MB in the beginning and 17.2 MB in the end (delta: 992.9 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,743 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.70 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.2 MB in the beginning and 31.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,744 INFO L168 Benchmark]: Boogie Preprocessor took 56.84 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 28.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,744 INFO L168 Benchmark]: RCFGBuilder took 1389.01 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 41.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,745 INFO L168 Benchmark]: TraceAbstraction took 21542.03 ms. Allocated memory was 60.8 MB in the beginning and 272.6 MB in the end (delta: 211.8 MB). Free memory was 40.6 MB in the beginning and 199.2 MB in the end (delta: -158.6 MB). Peak memory consumption was 171.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,745 INFO L168 Benchmark]: Witness Printer took 169.66 ms. Allocated memory is still 272.6 MB. Free memory was 199.2 MB in the beginning and 186.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:10,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 27.4 MB in the beginning and 27.4 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 673.00 ms. Allocated memory is still 41.9 MB. Free memory was 18.2 MB in the beginning and 17.2 MB in the end (delta: 992.9 kB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.70 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.2 MB in the beginning and 31.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.84 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 28.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1389.01 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 28.7 MB in the beginning and 41.3 MB in the end (delta: -12.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21542.03 ms. Allocated memory was 60.8 MB in the beginning and 272.6 MB in the end (delta: 211.8 MB). Free memory was 40.6 MB in the beginning and 199.2 MB in the end (delta: -158.6 MB). Peak memory consumption was 171.1 MB. Max. memory is 16.1 GB. * Witness Printer took 169.66 ms. Allocated memory is still 272.6 MB. Free memory was 199.2 MB in the beginning and 186.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: ((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((((((((!(tmp == 0) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) || ((((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((((tmp___0 == 0 && 1 == systemActive) && tmp == 1) && \result == 0) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0) - InvariantResult [Line: 297]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && 1 <= tmp) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((2 <= tmp && !(tmp == 0)) && tmp == 0) && !(\result == 0)) && \result == 0) && tmp == 0) && 1 == systemActive) && 2 <= \result) && 2 <= waterLevel) && splverifierCounter == 0) && !(tmp___0 == 0)) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= tmp___0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.3s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1966 SDtfs, 2925 SDslu, 3330 SDs, 0 SdLazy, 471 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 2663 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 196 NumberOfFragments, 578 HoareAnnotationTreeSize, 54 FomulaSimplifications, 25684348 FormulaSimplificationTreeSizeReduction, 4.4s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1462466 FormulaSimplificationTreeSizeReductionInter, 9.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 65490 SizeOfPredicates, 8 NumberOfNonLiveVariables, 931 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 215/231 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 correct! Received shutdown request...