./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_spec2_product51.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 2d6bd7a2d1728d381423fedea6f747367a642c2a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:43:36,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:43:36,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:43:36,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:43:36,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:43:36,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:43:36,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:43:36,875 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:43:36,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:43:36,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:43:36,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:43:36,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:43:36,884 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:43:36,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:43:36,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:43:36,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:43:36,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:43:36,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:43:36,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:43:36,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:43:36,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:43:36,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:43:36,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:43:36,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:43:36,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:43:36,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:43:36,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:43:36,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:43:36,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:43:36,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:43:36,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:43:36,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:43:36,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:43:36,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:43:36,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:43:36,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:43:36,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:43:36,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:43:36,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:43:36,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:43:36,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:43:36,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:43:36,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:43:36,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:43:36,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:43:36,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:43:36,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:43:36,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:43:36,962 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:43:36,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:43:36,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:43:36,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:43:36,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:43:36,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:43:36,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:43:36,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:43:36,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:43:36,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:43:36,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:43:36,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d6bd7a2d1728d381423fedea6f747367a642c2a [2021-08-26 08:43:37,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:43:37,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:43:37,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:43:37,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:43:37,373 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:43:37,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-08-26 08:43:37,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2bcd727a/bcb2f1b561544098829e6383e32d8393/FLAG77ec14bba [2021-08-26 08:43:37,861 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:43:37,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-08-26 08:43:37,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2bcd727a/bcb2f1b561544098829e6383e32d8393/FLAG77ec14bba [2021-08-26 08:43:37,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2bcd727a/bcb2f1b561544098829e6383e32d8393 [2021-08-26 08:43:37,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:43:37,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:43:37,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:43:37,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:43:37,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:43:37,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:37" (1/1) ... [2021-08-26 08:43:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbcf622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:37, skipping insertion in model container [2021-08-26 08:43:37,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:37" (1/1) ... [2021-08-26 08:43:37,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:43:37,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:43:38,157 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9005,9018] [2021-08-26 08:43:38,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:43:38,221 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:43:38,266 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9005,9018] [2021-08-26 08:43:38,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:43:38,315 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:43:38,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38 WrapperNode [2021-08-26 08:43:38,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:43:38,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:43:38,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:43:38,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:43:38,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:43:38,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:43:38,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:43:38,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:43:38,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:43:38,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:43:38,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:43:38,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:43:38,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (1/1) ... [2021-08-26 08:43:38,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:43:38,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:43:38,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 08:43:38,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 08:43:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:43:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:43:38,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:43:38,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:43:39,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:43:39,144 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-08-26 08:43:39,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:39 BoogieIcfgContainer [2021-08-26 08:43:39,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:43:39,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:43:39,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:43:39,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:43:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:43:37" (1/3) ... [2021-08-26 08:43:39,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694e8d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:43:39, skipping insertion in model container [2021-08-26 08:43:39,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:38" (2/3) ... [2021-08-26 08:43:39,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694e8d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:43:39, skipping insertion in model container [2021-08-26 08:43:39,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:39" (3/3) ... [2021-08-26 08:43:39,150 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2021-08-26 08:43:39,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:43:39,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:43:39,181 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:43:39,186 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 08:43:39,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:43:39,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-26 08:43:39,204 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,205 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:39,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,209 INFO L82 PathProgramCache]: Analyzing trace with hash 815277316, now seen corresponding path program 1 times [2021-08-26 08:43:39,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139685661] [2021-08-26 08:43:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139685661] [2021-08-26 08:43:39,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139685661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:39,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240105691] [2021-08-26 08:43:39,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:43:39,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:43:39,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:43:39,384 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,401 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2021-08-26 08:43:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:43:39,402 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-26 08:43:39,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,408 INFO L225 Difference]: With dead ends: 239 [2021-08-26 08:43:39,408 INFO L226 Difference]: Without dead ends: 119 [2021-08-26 08:43:39,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:43:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-08-26 08:43:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-08-26 08:43:39,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 118 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2021-08-26 08:43:39,434 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2021-08-26 08:43:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,435 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2021-08-26 08:43:39,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,435 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2021-08-26 08:43:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 08:43:39,436 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,436 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:39,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:43:39,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash 596441347, now seen corresponding path program 1 times [2021-08-26 08:43:39,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615739337] [2021-08-26 08:43:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615739337] [2021-08-26 08:43:39,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615739337] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:43:39,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509509281] [2021-08-26 08:43:39,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:39,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:39,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,501 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,509 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-08-26 08:43:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:39,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-08-26 08:43:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,510 INFO L225 Difference]: With dead ends: 119 [2021-08-26 08:43:39,510 INFO L226 Difference]: Without dead ends: 51 [2021-08-26 08:43:39,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-26 08:43:39,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-26 08:43:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-08-26 08:43:39,514 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-08-26 08:43:39,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,515 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-08-26 08:43:39,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,515 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-08-26 08:43:39,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:43:39,516 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,516 INFO L512 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] [2021-08-26 08:43:39,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:43:39,516 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,517 INFO L82 PathProgramCache]: Analyzing trace with hash -781547841, now seen corresponding path program 1 times [2021-08-26 08:43:39,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931182541] [2021-08-26 08:43:39,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931182541] [2021-08-26 08:43:39,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931182541] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:39,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704364497] [2021-08-26 08:43:39,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:39,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:39,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,565 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,576 INFO L93 Difference]: Finished difference Result 139 states and 208 transitions. [2021-08-26 08:43:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:39,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 08:43:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,578 INFO L225 Difference]: With dead ends: 139 [2021-08-26 08:43:39,578 INFO L226 Difference]: Without dead ends: 95 [2021-08-26 08:43:39,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-08-26 08:43:39,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2021-08-26 08:43:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.511111111111111) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2021-08-26 08:43:39,586 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 24 [2021-08-26 08:43:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,586 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2021-08-26 08:43:39,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2021-08-26 08:43:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-26 08:43:39,588 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,588 INFO L512 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] [2021-08-26 08:43:39,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:43:39,588 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1063081859, now seen corresponding path program 1 times [2021-08-26 08:43:39,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840188273] [2021-08-26 08:43:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840188273] [2021-08-26 08:43:39,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840188273] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:39,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370314139] [2021-08-26 08:43:39,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:39,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:39,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,629 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,656 INFO L93 Difference]: Finished difference Result 218 states and 331 transitions. [2021-08-26 08:43:39,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:39,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-26 08:43:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,657 INFO L225 Difference]: With dead ends: 218 [2021-08-26 08:43:39,658 INFO L226 Difference]: Without dead ends: 134 [2021-08-26 08:43:39,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:39,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-08-26 08:43:39,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-08-26 08:43:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.4809160305343512) internal successors, (194), 131 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2021-08-26 08:43:39,674 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 26 [2021-08-26 08:43:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,674 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2021-08-26 08:43:39,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2021-08-26 08:43:39,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-08-26 08:43:39,675 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,676 INFO L512 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] [2021-08-26 08:43:39,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:43:39,676 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,676 INFO L82 PathProgramCache]: Analyzing trace with hash -460039864, now seen corresponding path program 1 times [2021-08-26 08:43:39,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988430974] [2021-08-26 08:43:39,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988430974] [2021-08-26 08:43:39,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988430974] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:43:39,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350697868] [2021-08-26 08:43:39,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:39,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:39,723 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,784 INFO L93 Difference]: Finished difference Result 692 states and 1031 transitions. [2021-08-26 08:43:39,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 08:43:39,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-08-26 08:43:39,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,787 INFO L225 Difference]: With dead ends: 692 [2021-08-26 08:43:39,788 INFO L226 Difference]: Without dead ends: 567 [2021-08-26 08:43:39,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:43:39,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-08-26 08:43:39,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 243. [2021-08-26 08:43:39,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 242 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 352 transitions. [2021-08-26 08:43:39,814 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 352 transitions. Word has length 27 [2021-08-26 08:43:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,814 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 352 transitions. [2021-08-26 08:43:39,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,815 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 352 transitions. [2021-08-26 08:43:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-26 08:43:39,815 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,815 INFO L512 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] [2021-08-26 08:43:39,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:43:39,816 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1894185024, now seen corresponding path program 1 times [2021-08-26 08:43:39,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365817889] [2021-08-26 08:43:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:39,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:39,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:39,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365817889] [2021-08-26 08:43:39,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365817889] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:39,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:39,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:43:39,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715468445] [2021-08-26 08:43:39,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:39,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:39,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:39,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:39,865 INFO L87 Difference]: Start difference. First operand 243 states and 352 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:39,946 INFO L93 Difference]: Finished difference Result 921 states and 1339 transitions. [2021-08-26 08:43:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:43:39,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-08-26 08:43:39,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:39,949 INFO L225 Difference]: With dead ends: 921 [2021-08-26 08:43:39,949 INFO L226 Difference]: Without dead ends: 685 [2021-08-26 08:43:39,966 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:43:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-08-26 08:43:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 241. [2021-08-26 08:43:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4416666666666667) internal successors, (346), 240 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2021-08-26 08:43:39,977 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 28 [2021-08-26 08:43:39,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:39,977 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2021-08-26 08:43:39,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2021-08-26 08:43:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 08:43:39,982 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:39,982 INFO L512 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] [2021-08-26 08:43:39,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 08:43:39,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:39,983 INFO L82 PathProgramCache]: Analyzing trace with hash -44877900, now seen corresponding path program 1 times [2021-08-26 08:43:39,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:39,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115953141] [2021-08-26 08:43:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:39,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115953141] [2021-08-26 08:43:40,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115953141] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:43:40,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483256842] [2021-08-26 08:43:40,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:40,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:40,022 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,080 INFO L93 Difference]: Finished difference Result 655 states and 925 transitions. [2021-08-26 08:43:40,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:43:40,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-08-26 08:43:40,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,085 INFO L225 Difference]: With dead ends: 655 [2021-08-26 08:43:40,085 INFO L226 Difference]: Without dead ends: 421 [2021-08-26 08:43:40,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:43:40,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-08-26 08:43:40,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2021-08-26 08:43:40,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 264 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 370 transitions. [2021-08-26 08:43:40,098 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 370 transitions. Word has length 33 [2021-08-26 08:43:40,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,099 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 370 transitions. [2021-08-26 08:43:40,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,099 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 370 transitions. [2021-08-26 08:43:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 08:43:40,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,100 INFO L512 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] [2021-08-26 08:43:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 08:43:40,100 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,101 INFO L82 PathProgramCache]: Analyzing trace with hash 656186678, now seen corresponding path program 1 times [2021-08-26 08:43:40,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171538826] [2021-08-26 08:43:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171538826] [2021-08-26 08:43:40,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171538826] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:43:40,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791417715] [2021-08-26 08:43:40,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:43:40,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:43:40,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:43:40,160 INFO L87 Difference]: Start difference. First operand 265 states and 370 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,192 INFO L93 Difference]: Finished difference Result 643 states and 887 transitions. [2021-08-26 08:43:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:43:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-08-26 08:43:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,194 INFO L225 Difference]: With dead ends: 643 [2021-08-26 08:43:40,194 INFO L226 Difference]: Without dead ends: 385 [2021-08-26 08:43:40,195 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:40,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-08-26 08:43:40,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 281. [2021-08-26 08:43:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 280 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 386 transitions. [2021-08-26 08:43:40,205 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 386 transitions. Word has length 33 [2021-08-26 08:43:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,206 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 386 transitions. [2021-08-26 08:43:40,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 386 transitions. [2021-08-26 08:43:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 08:43:40,207 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,207 INFO L512 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] [2021-08-26 08:43:40,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 08:43:40,208 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,209 INFO L82 PathProgramCache]: Analyzing trace with hash 69380664, now seen corresponding path program 1 times [2021-08-26 08:43:40,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527789213] [2021-08-26 08:43:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527789213] [2021-08-26 08:43:40,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527789213] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:40,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214682617] [2021-08-26 08:43:40,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:40,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:40,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,256 INFO L87 Difference]: Start difference. First operand 281 states and 386 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,283 INFO L93 Difference]: Finished difference Result 659 states and 899 transitions. [2021-08-26 08:43:40,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:40,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-08-26 08:43:40,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,285 INFO L225 Difference]: With dead ends: 659 [2021-08-26 08:43:40,285 INFO L226 Difference]: Without dead ends: 385 [2021-08-26 08:43:40,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-08-26 08:43:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-08-26 08:43:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.3333333333333333) internal successors, (512), 384 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 512 transitions. [2021-08-26 08:43:40,302 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 512 transitions. Word has length 33 [2021-08-26 08:43:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,303 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 512 transitions. [2021-08-26 08:43:40,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 512 transitions. [2021-08-26 08:43:40,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:43:40,304 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,304 INFO L512 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] [2021-08-26 08:43:40,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 08:43:40,304 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1964012792, now seen corresponding path program 1 times [2021-08-26 08:43:40,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727070916] [2021-08-26 08:43:40,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727070916] [2021-08-26 08:43:40,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727070916] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:43:40,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428015242] [2021-08-26 08:43:40,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:40,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:40,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,331 INFO L87 Difference]: Start difference. First operand 385 states and 512 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,359 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2021-08-26 08:43:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:40,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 08:43:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,361 INFO L225 Difference]: With dead ends: 595 [2021-08-26 08:43:40,361 INFO L226 Difference]: Without dead ends: 593 [2021-08-26 08:43:40,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-08-26 08:43:40,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 472. [2021-08-26 08:43:40,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3630573248407643) internal successors, (642), 471 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 642 transitions. [2021-08-26 08:43:40,392 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 642 transitions. Word has length 34 [2021-08-26 08:43:40,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,392 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 642 transitions. [2021-08-26 08:43:40,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 642 transitions. [2021-08-26 08:43:40,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-26 08:43:40,393 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,393 INFO L512 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] [2021-08-26 08:43:40,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 08:43:40,394 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1050282420, now seen corresponding path program 1 times [2021-08-26 08:43:40,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17583514] [2021-08-26 08:43:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-26 08:43:40,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17583514] [2021-08-26 08:43:40,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17583514] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:43:40,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668158783] [2021-08-26 08:43:40,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:40,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:40,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,422 INFO L87 Difference]: Start difference. First operand 472 states and 642 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,457 INFO L93 Difference]: Finished difference Result 564 states and 763 transitions. [2021-08-26 08:43:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:40,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-26 08:43:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,459 INFO L225 Difference]: With dead ends: 564 [2021-08-26 08:43:40,459 INFO L226 Difference]: Without dead ends: 234 [2021-08-26 08:43:40,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:40,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-08-26 08:43:40,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-08-26 08:43:40,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 233 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 306 transitions. [2021-08-26 08:43:40,469 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 306 transitions. Word has length 54 [2021-08-26 08:43:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,469 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 306 transitions. [2021-08-26 08:43:40,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,470 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 306 transitions. [2021-08-26 08:43:40,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-26 08:43:40,470 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,470 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:40,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 08:43:40,471 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2090460060, now seen corresponding path program 1 times [2021-08-26 08:43:40,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346730820] [2021-08-26 08:43:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346730820] [2021-08-26 08:43:40,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346730820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 08:43:40,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644377012] [2021-08-26 08:43:40,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:43:40,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:43:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:43:40,557 INFO L87 Difference]: Start difference. First operand 234 states and 306 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,731 INFO L93 Difference]: Finished difference Result 1269 states and 1689 transitions. [2021-08-26 08:43:40,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-26 08:43:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-26 08:43:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,734 INFO L225 Difference]: With dead ends: 1269 [2021-08-26 08:43:40,734 INFO L226 Difference]: Without dead ends: 1092 [2021-08-26 08:43:40,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 55.2ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-08-26 08:43:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2021-08-26 08:43:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 489. [2021-08-26 08:43:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.3012295081967213) internal successors, (635), 488 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 635 transitions. [2021-08-26 08:43:40,774 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 635 transitions. Word has length 58 [2021-08-26 08:43:40,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,774 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 635 transitions. [2021-08-26 08:43:40,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 635 transitions. [2021-08-26 08:43:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-26 08:43:40,775 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,775 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:40,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-26 08:43:40,776 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1832294622, now seen corresponding path program 1 times [2021-08-26 08:43:40,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27103926] [2021-08-26 08:43:40,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:43:40,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27103926] [2021-08-26 08:43:40,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27103926] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:40,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:40,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:43:40,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192343088] [2021-08-26 08:43:40,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:40,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:40,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:40,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:40,839 INFO L87 Difference]: Start difference. First operand 489 states and 635 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:40,911 INFO L93 Difference]: Finished difference Result 912 states and 1172 transitions. [2021-08-26 08:43:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:43:40,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-26 08:43:40,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:40,913 INFO L225 Difference]: With dead ends: 912 [2021-08-26 08:43:40,913 INFO L226 Difference]: Without dead ends: 480 [2021-08-26 08:43:40,914 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:43:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-08-26 08:43:40,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2021-08-26 08:43:40,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.2326530612244897) internal successors, (302), 245 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2021-08-26 08:43:40,933 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 58 [2021-08-26 08:43:40,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2021-08-26 08:43:40,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2021-08-26 08:43:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-08-26 08:43:40,935 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:40,935 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:40,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-26 08:43:40,935 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:43:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:40,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1973254398, now seen corresponding path program 1 times [2021-08-26 08:43:40,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:40,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029745] [2021-08-26 08:43:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:40,963 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:40,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:40,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029745] [2021-08-26 08:43:40,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029745] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:43:40,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372560153] [2021-08-26 08:43:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:40,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:43:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:43:40,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 08:43:41,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 08:43:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:41,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-26 08:43:41,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 08:43:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:43:41,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372560153] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:41,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-26 08:43:41,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-08-26 08:43:41,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739659036] [2021-08-26 08:43:41,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:41,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:41,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:41,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:41,263 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:41,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:41,306 INFO L93 Difference]: Finished difference Result 416 states and 515 transitions. [2021-08-26 08:43:41,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:41,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-08-26 08:43:41,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:41,307 INFO L225 Difference]: With dead ends: 416 [2021-08-26 08:43:41,307 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 08:43:41,307 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 08:43:41,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 08:43:41,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 08:43:41,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-08-26 08:43:41,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:41,308 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 08:43:41,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:43:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 08:43:41,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 08:43:41,310 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:41,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:41,311 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:41,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-08-26 08:43:41,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-08-26 08:43:41,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 08:43:41,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:41,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:42,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:43:45,524 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498-1(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498-3(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498-4(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L498-5(lines 498 504) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 437) no Hoare annotation was computed. [2021-08-26 08:43:45,525 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed. [2021-08-26 08:43:45,526 INFO L857 garLoopResultBuilder]: For program point L533-1(lines 131 137) no Hoare annotation was computed. [2021-08-26 08:43:45,526 INFO L853 garLoopResultBuilder]: At program point L401(lines 1 988) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:43:45,526 INFO L853 garLoopResultBuilder]: At program point L138(lines 138 144) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-08-26 08:43:45,526 INFO L853 garLoopResultBuilder]: At program point L105(lines 56 106) the Hoare annotation is: false [2021-08-26 08:43:45,526 INFO L853 garLoopResultBuilder]: At program point L138-1(lines 138 144) the Hoare annotation is: false [2021-08-26 08:43:45,526 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 138 144) the Hoare annotation is: false [2021-08-26 08:43:45,526 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 608) no Hoare annotation was computed. [2021-08-26 08:43:45,527 INFO L860 garLoopResultBuilder]: At program point L601-1(lines 601 608) the Hoare annotation is: true [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503(lines 494 507) the Hoare annotation is: false [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503-1(lines 494 507) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503-2(lines 494 507) the Hoare annotation is: false [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503-3(lines 494 507) the Hoare annotation is: false [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503-4(lines 494 507) the Hoare annotation is: false [2021-08-26 08:43:45,527 INFO L853 garLoopResultBuilder]: At program point L503-5(lines 494 507) the Hoare annotation is: false [2021-08-26 08:43:45,527 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L242(lines 237 245) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_isPumpRunning_#res| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L242-1(lines 237 245) the Hoare annotation is: false [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L242-2(lines 237 245) the Hoare annotation is: false [2021-08-26 08:43:45,528 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L409(lines 404 412) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:43:45,528 INFO L853 garLoopResultBuilder]: At program point L343(lines 338 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310-2(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310-3(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310-5(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310-6(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L857 garLoopResultBuilder]: For program point L310-8(lines 310 314) no Hoare annotation was computed. [2021-08-26 08:43:45,529 INFO L860 garLoopResultBuilder]: At program point L610(lines 591 613) the Hoare annotation is: true [2021-08-26 08:43:45,529 INFO L853 garLoopResultBuilder]: At program point L577(lines 573 579) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:43:45,530 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 449) no Hoare annotation was computed. [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L513(lines 508 516) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|)) [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L513-1(lines 508 516) the Hoare annotation is: false [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L513-2(lines 508 516) the Hoare annotation is: false [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L316(lines 301 319) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0)) [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L316-1(lines 301 319) the Hoare annotation is: false [2021-08-26 08:43:45,530 INFO L853 garLoopResultBuilder]: At program point L316-2(lines 301 319) the Hoare annotation is: false [2021-08-26 08:43:45,530 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 100) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 371) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L853 garLoopResultBuilder]: At program point L354-1(lines 1 988) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-08-26 08:43:45,531 INFO L857 garLoopResultBuilder]: For program point L354-2(lines 354 371) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L853 garLoopResultBuilder]: At program point L354-3(lines 1 988) the Hoare annotation is: false [2021-08-26 08:43:45,531 INFO L857 garLoopResultBuilder]: For program point L354-4(lines 354 371) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 206) no Hoare annotation was computed. [2021-08-26 08:43:45,531 INFO L853 garLoopResultBuilder]: At program point L354-5(lines 1 988) the Hoare annotation is: false [2021-08-26 08:43:45,532 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 189 206) no Hoare annotation was computed. [2021-08-26 08:43:45,532 INFO L857 garLoopResultBuilder]: For program point L189-2(lines 189 206) no Hoare annotation was computed. [2021-08-26 08:43:45,532 INFO L857 garLoopResultBuilder]: For program point L619(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,532 INFO L857 garLoopResultBuilder]: For program point L619-1(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,532 INFO L857 garLoopResultBuilder]: For program point L619-2(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 425) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L421-3(lines 421 425) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L421-6(lines 421 425) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L58(lines 57 104) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 63) no Hoare annotation was computed. [2021-08-26 08:43:45,533 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2021-08-26 08:43:45,534 INFO L853 garLoopResultBuilder]: At program point L324-1(lines 324 330) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0)) [2021-08-26 08:43:45,534 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-3(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-5(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-6(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L853 garLoopResultBuilder]: At program point L93-1(lines 131 137) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 (<= 1 ~waterLevel~0)))) [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-8(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,535 INFO L857 garLoopResultBuilder]: For program point L291-9(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,536 INFO L857 garLoopResultBuilder]: For program point L291-11(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,536 INFO L857 garLoopResultBuilder]: For program point L291-12(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,536 INFO L857 garLoopResultBuilder]: For program point L291-14(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L291-15(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L291-17(lines 291 295) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 368) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L358-2(lines 358 368) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L358-4(lines 358 368) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L193(lines 193 201) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 193 201) no Hoare annotation was computed. [2021-08-26 08:43:45,537 INFO L857 garLoopResultBuilder]: For program point L193-2(lines 193 201) no Hoare annotation was computed. [2021-08-26 08:43:45,538 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 08:43:45,538 INFO L853 garLoopResultBuilder]: At program point L458(lines 453 461) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-08-26 08:43:45,538 INFO L853 garLoopResultBuilder]: At program point L458-1(lines 453 461) the Hoare annotation is: false [2021-08-26 08:43:45,538 INFO L853 garLoopResultBuilder]: At program point L458-2(lines 453 461) the Hoare annotation is: false [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 365) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L359-2(lines 359 365) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L359-4(lines 359 365) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L163(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L163-2(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,539 INFO L857 garLoopResultBuilder]: For program point L163-3(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,540 INFO L857 garLoopResultBuilder]: For program point L163-4(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,540 INFO L857 garLoopResultBuilder]: For program point L163-5(lines 163 180) no Hoare annotation was computed. [2021-08-26 08:43:45,540 INFO L853 garLoopResultBuilder]: At program point L131(lines 130 149) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse4 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse4 .cse2 (= ~waterLevel~0 1)) (and (<= 1 ~pumpRunning~0) .cse0 .cse2 .cse3))) [2021-08-26 08:43:45,540 INFO L857 garLoopResultBuilder]: For program point L131-1(lines 131 137) no Hoare annotation was computed. [2021-08-26 08:43:45,540 INFO L853 garLoopResultBuilder]: At program point L131-2(lines 130 149) the Hoare annotation is: false [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L131-3(lines 130 149) the Hoare annotation is: false [2021-08-26 08:43:45,541 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 08:43:45,541 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L297(lines 282 300) the Hoare annotation is: false [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L297-1(lines 282 300) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L297-2(lines 282 300) the Hoare annotation is: false [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L297-3(lines 282 300) the Hoare annotation is: false [2021-08-26 08:43:45,541 INFO L853 garLoopResultBuilder]: At program point L297-4(lines 282 300) the Hoare annotation is: false [2021-08-26 08:43:45,542 INFO L853 garLoopResultBuilder]: At program point L297-5(lines 282 300) the Hoare annotation is: false [2021-08-26 08:43:45,542 INFO L853 garLoopResultBuilder]: At program point L529-2(lines 529 543) the Hoare annotation is: false [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-08-26 08:43:45,542 INFO L853 garLoopResultBuilder]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L167(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L167-1(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L167-2(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,542 INFO L857 garLoopResultBuilder]: For program point L167-3(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,543 INFO L857 garLoopResultBuilder]: For program point L167-4(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,543 INFO L857 garLoopResultBuilder]: For program point L167-5(lines 167 175) no Hoare annotation was computed. [2021-08-26 08:43:45,546 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:43:45,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:43:45 BoogieIcfgContainer [2021-08-26 08:43:45,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:43:45,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:43:45,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:43:45,578 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:43:45,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:39" (3/4) ... [2021-08-26 08:43:45,581 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 08:43:45,596 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-26 08:43:45,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-26 08:43:45,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 08:43:45,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 08:43:45,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 08:43:45,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:43:45,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:43:45,620 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-08-26 08:43:45,621 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result [2021-08-26 08:43:45,623 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-08-26 08:43:45,623 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) [2021-08-26 08:43:45,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 [2021-08-26 08:43:45,625 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-08-26 08:43:45,665 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:43:45,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:43:45,666 INFO L168 Benchmark]: Toolchain (without parser) took 7774.94 ms. Allocated memory was 56.6 MB in the beginning and 283.1 MB in the end (delta: 226.5 MB). Free memory was 34.8 MB in the beginning and 179.1 MB in the end (delta: -144.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,667 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:43:45,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 30.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.09 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 27.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,667 INFO L168 Benchmark]: Boogie Preprocessor took 37.60 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 27.0 MB in the beginning and 56.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,668 INFO L168 Benchmark]: RCFGBuilder took 729.73 ms. Allocated memory is still 75.5 MB. Free memory was 56.3 MB in the beginning and 35.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,668 INFO L168 Benchmark]: TraceAbstraction took 6430.33 ms. Allocated memory was 75.5 MB in the beginning and 283.1 MB in the end (delta: 207.6 MB). Free memory was 35.2 MB in the beginning and 189.6 MB in the end (delta: -154.4 MB). Peak memory consumption was 152.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,668 INFO L168 Benchmark]: Witness Printer took 87.95 ms. Allocated memory is still 283.1 MB. Free memory was 189.6 MB in the beginning and 179.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:45,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.9 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 423.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.5 MB in the beginning and 30.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.09 ms. Allocated memory is still 56.6 MB. Free memory was 30.8 MB in the beginning and 27.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.60 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 27.0 MB in the beginning and 56.6 MB in the end (delta: -29.6 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 729.73 ms. Allocated memory is still 75.5 MB. Free memory was 56.3 MB in the beginning and 35.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6430.33 ms. Allocated memory was 75.5 MB in the beginning and 283.1 MB in the end (delta: 207.6 MB). Free memory was 35.2 MB in the beginning and 189.6 MB in the end (delta: -154.4 MB). Peak memory consumption was 152.6 MB. Max. memory is 16.1 GB. * Witness Printer took 87.95 ms. Allocated memory is still 283.1 MB. Free memory was 189.6 MB in the beginning and 179.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 619]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6366.2ms, OverallIterations: 14, TraceHistogramMax: 2, EmptinessCheckTime: 20.4ms, AutomataDifference: 755.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 3999.9ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1395 SDtfs, 1474 SDslu, 2073 SDs, 0 SdLazy, 242 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 206.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 190.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=12, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 216.8ms AutomataMinimizationTime, 14 MinimizatonAttempts, 1992 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 171 NumberOfFragments, 654 HoareAnnotationTreeSize, 45 FomulaSimplifications, 314637 FormulaSimplificationTreeSizeReduction, 1093.5ms HoareSimplificationTime, 45 FomulaSimplificationsInter, 68253 FormulaSimplificationTreeSizeReductionInter, 2893.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 52.9ms SsaConstructionTime, 257.3ms SatisfiabilityAnalysisTime, 600.1ms InterpolantComputationTime, 561 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 89/98 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1)) || (((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive) || (((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 - InvariantResult [Line: 529]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 591]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 404]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 338]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-08-26 08:43:45,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...