./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.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_spec1_productSimulator.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 b1532eb84511f08efccba1f71db5d8156ba5c802 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 08:43:07,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:43:07,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:43:08,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:43:08,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:43:08,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:43:08,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:43:08,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:43:08,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:43:08,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:43:08,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:43:08,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:43:08,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:43:08,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:43:08,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:43:08,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:43:08,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:43:08,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:43:08,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:43:08,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:43:08,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:43:08,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:43:08,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:43:08,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:43:08,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:43:08,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:43:08,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:43:08,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:43:08,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:43:08,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:43:08,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:43:08,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:43:08,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:43:08,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:43:08,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:43:08,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:43:08,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:43:08,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:43:08,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:43:08,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:43:08,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:43:08,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:43:08,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:43:08,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:43:08,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:43:08,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:43:08,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:43:08,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:43:08,158 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:43:08,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:43:08,159 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:43:08,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:43:08,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:43:08,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:43:08,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:43:08,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:43:08,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:43:08,161 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:43:08,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:43:08,161 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:43:08,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:43:08,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:43:08,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:43:08,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:43:08,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:43:08,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:43:08,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:43:08,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:43:08,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:43:08,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:43:08,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:43:08,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:43:08,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1532eb84511f08efccba1f71db5d8156ba5c802 [2021-08-26 08:43:08,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:43:08,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:43:08,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:43:08,454 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:43:08,455 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:43:08,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-08-26 08:43:08,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6903fb5/f5c2b5d0c21a4e0ba81d786c1399cd33/FLAGc5eaf686f [2021-08-26 08:43:09,037 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:43:09,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_productSimulator.cil.c [2021-08-26 08:43:09,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6903fb5/f5c2b5d0c21a4e0ba81d786c1399cd33/FLAGc5eaf686f [2021-08-26 08:43:09,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e6903fb5/f5c2b5d0c21a4e0ba81d786c1399cd33 [2021-08-26 08:43:09,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:43:09,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:43:09,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:43:09,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:43:09,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:43:09,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:09,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71454de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09, skipping insertion in model container [2021-08-26 08:43:09,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:09,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:43:09,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:43:09,775 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_spec1_productSimulator.cil.c[19893,19906] [2021-08-26 08:43:09,782 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:43:09,790 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:43:09,846 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_spec1_productSimulator.cil.c[19893,19906] [2021-08-26 08:43:09,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:43:09,869 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:43:09,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09 WrapperNode [2021-08-26 08:43:09,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:43:09,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:43:09,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:43:09,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:43:09,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:09,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:43:10,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:43:10,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:43:10,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:43:10,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:43:10,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:43:10,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:43:10,136 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:43:10,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (1/1) ... [2021-08-26 08:43:10,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:43:10,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:43:10,160 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 08:43:10,173 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 08:43:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:43:10,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:43:10,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:43:10,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:43:11,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:43:11,810 INFO L299 CfgBuilder]: Removed 900 assume(true) statements. [2021-08-26 08:43:11,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:11 BoogieIcfgContainer [2021-08-26 08:43:11,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:43:11,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:43:11,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:43:11,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:43:11,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:43:09" (1/3) ... [2021-08-26 08:43:11,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579bc389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:43:11, skipping insertion in model container [2021-08-26 08:43:11,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:43:09" (2/3) ... [2021-08-26 08:43:11,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579bc389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:43:11, skipping insertion in model container [2021-08-26 08:43:11,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:11" (3/3) ... [2021-08-26 08:43:11,821 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_productSimulator.cil.c [2021-08-26 08:43:11,827 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:43:11,827 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:43:11,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:43:11,887 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 08:43:11,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:43:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 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 08:43:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-26 08:43:11,921 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:11,921 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] [2021-08-26 08:43:11,921 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 08:43:11,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:11,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1535705576, now seen corresponding path program 1 times [2021-08-26 08:43:11,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:11,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308761606] [2021-08-26 08:43:11,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:11,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:12,203 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 08:43:12,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:12,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308761606] [2021-08-26 08:43:12,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308761606] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:12,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:12,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:12,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252621230] [2021-08-26 08:43:12,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:43:12,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:12,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:43:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:43:12,224 INFO L87 Difference]: Start difference. First operand has 470 states, 466 states have (on average 1.5751072961373391) internal successors, (734), 469 states have internal predecessors, (734), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 08:43:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:12,297 INFO L93 Difference]: Finished difference Result 927 states and 1454 transitions. [2021-08-26 08:43:12,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:43:12,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2021-08-26 08:43:12,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:12,310 INFO L225 Difference]: With dead ends: 927 [2021-08-26 08:43:12,310 INFO L226 Difference]: Without dead ends: 466 [2021-08-26 08:43:12,314 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 08:43:12,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-08-26 08:43:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2021-08-26 08:43:12,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 463 states have (on average 1.5593952483801297) internal successors, (722), 465 states have internal predecessors, (722), 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 08:43:12,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 722 transitions. [2021-08-26 08:43:12,377 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 722 transitions. Word has length 23 [2021-08-26 08:43:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:12,378 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 722 transitions. [2021-08-26 08:43:12,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 08:43:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 722 transitions. [2021-08-26 08:43:12,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:43:12,381 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:12,381 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 08:43:12,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:43:12,381 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 08:43:12,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:12,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1882100476, now seen corresponding path program 1 times [2021-08-26 08:43:12,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:12,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352072382] [2021-08-26 08:43:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:12,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:12,502 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 08:43:12,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:12,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352072382] [2021-08-26 08:43:12,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352072382] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:12,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:12,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:43:12,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078763447] [2021-08-26 08:43:12,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:12,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:12,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:12,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:12,507 INFO L87 Difference]: Start difference. First operand 466 states and 722 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 08:43:12,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:12,535 INFO L93 Difference]: Finished difference Result 466 states and 722 transitions. [2021-08-26 08:43:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:12,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 08:43:12,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:12,539 INFO L225 Difference]: With dead ends: 466 [2021-08-26 08:43:12,540 INFO L226 Difference]: Without dead ends: 172 [2021-08-26 08:43:12,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-26 08:43:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2021-08-26 08:43:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.5380116959064327) internal successors, (263), 171 states have internal predecessors, (263), 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 08:43:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 263 transitions. [2021-08-26 08:43:12,556 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 263 transitions. Word has length 24 [2021-08-26 08:43:12,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:12,557 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 263 transitions. [2021-08-26 08:43:12,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 08:43:12,557 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 263 transitions. [2021-08-26 08:43:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-26 08:43:12,559 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:12,559 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] [2021-08-26 08:43:12,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:43:12,560 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 08:43:12,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:12,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1978143563, now seen corresponding path program 1 times [2021-08-26 08:43:12,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:12,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525687428] [2021-08-26 08:43:12,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:12,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:12,698 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 08:43:12,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:12,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525687428] [2021-08-26 08:43:12,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525687428] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:12,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:12,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 08:43:12,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360053914] [2021-08-26 08:43:12,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 08:43:12,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:12,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 08:43:12,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:43:12,706 INFO L87 Difference]: Start difference. First operand 172 states and 263 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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 08:43:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:12,942 INFO L93 Difference]: Finished difference Result 674 states and 1051 transitions. [2021-08-26 08:43:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 08:43:12,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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 30 [2021-08-26 08:43:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:12,947 INFO L225 Difference]: With dead ends: 674 [2021-08-26 08:43:12,947 INFO L226 Difference]: Without dead ends: 515 [2021-08-26 08:43:12,948 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-08-26 08:43:12,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-08-26 08:43:12,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 193. [2021-08-26 08:43:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.5416666666666667) internal successors, (296), 192 states have internal predecessors, (296), 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 08:43:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 296 transitions. [2021-08-26 08:43:12,981 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 296 transitions. Word has length 30 [2021-08-26 08:43:12,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:12,981 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 296 transitions. [2021-08-26 08:43:12,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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 08:43:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 296 transitions. [2021-08-26 08:43:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 08:43:12,986 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:12,986 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 08:43:12,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:43:12,987 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 08:43:12,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:12,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1554604317, now seen corresponding path program 1 times [2021-08-26 08:43:12,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:12,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878884189] [2021-08-26 08:43:12,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:12,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:13,064 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 08:43:13,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:13,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878884189] [2021-08-26 08:43:13,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878884189] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:13,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:13,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:13,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322161872] [2021-08-26 08:43:13,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:13,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:13,071 INFO L87 Difference]: Start difference. First operand 193 states and 296 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 08:43:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:13,156 INFO L93 Difference]: Finished difference Result 384 states and 597 transitions. [2021-08-26 08:43:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:13,157 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 08:43:13,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:13,158 INFO L225 Difference]: With dead ends: 384 [2021-08-26 08:43:13,158 INFO L226 Difference]: Without dead ends: 204 [2021-08-26 08:43:13,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:13,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-08-26 08:43:13,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-08-26 08:43:13,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.5024875621890548) internal successors, (302), 201 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 08:43:13,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 302 transitions. [2021-08-26 08:43:13,169 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 302 transitions. Word has length 33 [2021-08-26 08:43:13,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:13,170 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 302 transitions. [2021-08-26 08:43:13,170 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 08:43:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 302 transitions. [2021-08-26 08:43:13,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-08-26 08:43:13,173 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:13,173 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 08:43:13,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:43:13,174 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 08:43:13,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:13,175 INFO L82 PathProgramCache]: Analyzing trace with hash 965063802, now seen corresponding path program 1 times [2021-08-26 08:43:13,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:13,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016212988] [2021-08-26 08:43:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:13,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:13,250 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 08:43:13,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:13,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016212988] [2021-08-26 08:43:13,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016212988] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:13,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:13,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:43:13,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563559245] [2021-08-26 08:43:13,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:13,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:13,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:13,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:13,253 INFO L87 Difference]: Start difference. First operand 202 states and 302 transitions. Second operand has 5 states, 5 states have (on average 6.6) 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 08:43:13,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:13,481 INFO L93 Difference]: Finished difference Result 1088 states and 1674 transitions. [2021-08-26 08:43:13,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 08:43:13,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) 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 08:43:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:13,486 INFO L225 Difference]: With dead ends: 1088 [2021-08-26 08:43:13,486 INFO L226 Difference]: Without dead ends: 899 [2021-08-26 08:43:13,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:43:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2021-08-26 08:43:13,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 383. [2021-08-26 08:43:13,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5052356020942408) internal successors, (575), 382 states have internal predecessors, (575), 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 08:43:13,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 575 transitions. [2021-08-26 08:43:13,513 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 575 transitions. Word has length 33 [2021-08-26 08:43:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:13,514 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 575 transitions. [2021-08-26 08:43:13,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) 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 08:43:13,515 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 575 transitions. [2021-08-26 08:43:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:43:13,516 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:13,517 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 08:43:13,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:43:13,517 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 08:43:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:13,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1927811083, now seen corresponding path program 1 times [2021-08-26 08:43:13,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:13,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717957154] [2021-08-26 08:43:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:13,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:13,581 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 08:43:13,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:13,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717957154] [2021-08-26 08:43:13,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717957154] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:13,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:13,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:43:13,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43259069] [2021-08-26 08:43:13,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:13,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:13,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:13,588 INFO L87 Difference]: Start difference. First operand 383 states and 575 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 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 08:43:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:13,836 INFO L93 Difference]: Finished difference Result 1195 states and 1810 transitions. [2021-08-26 08:43:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:43:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 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 08:43:13,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:13,843 INFO L225 Difference]: With dead ends: 1195 [2021-08-26 08:43:13,843 INFO L226 Difference]: Without dead ends: 1193 [2021-08-26 08:43:13,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:43:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2021-08-26 08:43:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 383. [2021-08-26 08:43:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 382 states have (on average 1.5) internal successors, (573), 382 states have internal predecessors, (573), 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 08:43:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 573 transitions. [2021-08-26 08:43:13,891 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 573 transitions. Word has length 34 [2021-08-26 08:43:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:13,891 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 573 transitions. [2021-08-26 08:43:13,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 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 08:43:13,892 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 573 transitions. [2021-08-26 08:43:13,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-26 08:43:13,892 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:13,893 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:13,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 08:43:13,893 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 08:43:13,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:13,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1912385192, now seen corresponding path program 1 times [2021-08-26 08:43:13,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:13,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588042328] [2021-08-26 08:43:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:13,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:13,958 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 08:43:13,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:13,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588042328] [2021-08-26 08:43:13,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588042328] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:13,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:13,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:43:13,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400661765] [2021-08-26 08:43:13,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:43:13,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:13,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:43:13,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:43:13,960 INFO L87 Difference]: Start difference. First operand 383 states and 573 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 08:43:14,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:14,124 INFO L93 Difference]: Finished difference Result 1009 states and 1501 transitions. [2021-08-26 08:43:14,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:43:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 42 [2021-08-26 08:43:14,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:14,127 INFO L225 Difference]: With dead ends: 1009 [2021-08-26 08:43:14,127 INFO L226 Difference]: Without dead ends: 639 [2021-08-26 08:43:14,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:43:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-08-26 08:43:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 431. [2021-08-26 08:43:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4441860465116279) internal successors, (621), 430 states have internal predecessors, (621), 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 08:43:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 621 transitions. [2021-08-26 08:43:14,162 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 621 transitions. Word has length 42 [2021-08-26 08:43:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:14,163 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 621 transitions. [2021-08-26 08:43:14,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 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 08:43:14,163 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 621 transitions. [2021-08-26 08:43:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-26 08:43:14,164 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:14,164 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:14,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 08:43:14,164 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 08:43:14,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:14,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1681517526, now seen corresponding path program 1 times [2021-08-26 08:43:14,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:14,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461849901] [2021-08-26 08:43:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:14,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:14,228 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 08:43:14,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:14,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461849901] [2021-08-26 08:43:14,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461849901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:14,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:14,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 08:43:14,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590533586] [2021-08-26 08:43:14,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 08:43:14,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 08:43:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:43:14,230 INFO L87 Difference]: Start difference. First operand 431 states and 621 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 08:43:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:14,477 INFO L93 Difference]: Finished difference Result 1145 states and 1637 transitions. [2021-08-26 08:43:14,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-26 08:43:14,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 42 [2021-08-26 08:43:14,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:14,481 INFO L225 Difference]: With dead ends: 1145 [2021-08-26 08:43:14,482 INFO L226 Difference]: Without dead ends: 727 [2021-08-26 08:43:14,483 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 67.8ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-08-26 08:43:14,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-08-26 08:43:14,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 463. [2021-08-26 08:43:14,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 1.4134199134199135) internal successors, (653), 462 states have internal predecessors, (653), 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 08:43:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 653 transitions. [2021-08-26 08:43:14,525 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 653 transitions. Word has length 42 [2021-08-26 08:43:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:14,526 INFO L470 AbstractCegarLoop]: Abstraction has 463 states and 653 transitions. [2021-08-26 08:43:14,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 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 08:43:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 653 transitions. [2021-08-26 08:43:14,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-26 08:43:14,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:14,527 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:14,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 08:43:14,528 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 08:43:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:14,528 INFO L82 PathProgramCache]: Analyzing trace with hash 2026643756, now seen corresponding path program 1 times [2021-08-26 08:43:14,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:14,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141830812] [2021-08-26 08:43:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:14,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:43:14,566 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 08:43:14,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:43:14,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141830812] [2021-08-26 08:43:14,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141830812] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:43:14,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:43:14,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:43:14,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118550312] [2021-08-26 08:43:14,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:43:14,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:43:14,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:43:14,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:14,569 INFO L87 Difference]: Start difference. First operand 463 states and 653 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 08:43:14,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:43:14,663 INFO L93 Difference]: Finished difference Result 1187 states and 1693 transitions. [2021-08-26 08:43:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:43:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 42 [2021-08-26 08:43:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:43:14,666 INFO L225 Difference]: With dead ends: 1187 [2021-08-26 08:43:14,666 INFO L226 Difference]: Without dead ends: 737 [2021-08-26 08:43:14,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:43:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-08-26 08:43:14,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 735. [2021-08-26 08:43:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.4032697547683923) internal successors, (1030), 734 states have internal predecessors, (1030), 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 08:43:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1030 transitions. [2021-08-26 08:43:14,712 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1030 transitions. Word has length 42 [2021-08-26 08:43:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:43:14,712 INFO L470 AbstractCegarLoop]: Abstraction has 735 states and 1030 transitions. [2021-08-26 08:43:14,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 2 states have internal predecessors, (42), 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 08:43:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1030 transitions. [2021-08-26 08:43:14,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-08-26 08:43:14,714 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:43:14,714 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:43:14,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 08:43:14,714 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 08:43:14,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:43:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1499020087, now seen corresponding path program 1 times [2021-08-26 08:43:14,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:43:14,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818079712] [2021-08-26 08:43:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:43:14,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:43:14,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 08:43:14,757 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 08:43:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 08:43:14,838 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 08:43:14,838 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 08:43:14,839 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:14,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:14,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:43:14,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 08:43:14,846 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:43:14,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:43:14 BoogieIcfgContainer [2021-08-26 08:43:14,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:43:14,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:43:14,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:43:14,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:43:14,963 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:43:11" (3/4) ... [2021-08-26 08:43:14,965 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 08:43:15,072 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:43:15,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:43:15,074 INFO L168 Benchmark]: Toolchain (without parser) took 5568.87 ms. Allocated memory was 52.4 MB in the beginning and 172.0 MB in the end (delta: 119.5 MB). Free memory was 28.5 MB in the beginning and 88.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,074 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:43:15,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.21 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.4 MB in the beginning and 38.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 149.83 ms. Allocated memory is still 62.9 MB. Free memory was 38.1 MB in the beginning and 41.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,076 INFO L168 Benchmark]: Boogie Preprocessor took 113.90 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 33.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,076 INFO L168 Benchmark]: RCFGBuilder took 1676.86 ms. Allocated memory was 62.9 MB in the beginning and 109.1 MB in the end (delta: 46.1 MB). Free memory was 33.7 MB in the beginning and 73.7 MB in the end (delta: -40.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,076 INFO L168 Benchmark]: TraceAbstraction took 3147.77 ms. Allocated memory was 109.1 MB in the beginning and 172.0 MB in the end (delta: 62.9 MB). Free memory was 73.1 MB in the beginning and 110.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 82.2 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,077 INFO L168 Benchmark]: Witness Printer took 110.15 ms. Allocated memory is still 172.0 MB. Free memory was 110.7 MB in the beginning and 88.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-08-26 08:43:15,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory is still 33.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 363.21 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.4 MB in the beginning and 38.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 149.83 ms. Allocated memory is still 62.9 MB. Free memory was 38.1 MB in the beginning and 41.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.90 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 33.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1676.86 ms. Allocated memory was 62.9 MB in the beginning and 109.1 MB in the end (delta: 46.1 MB). Free memory was 33.7 MB in the beginning and 73.7 MB in the end (delta: -40.0 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3147.77 ms. Allocated memory was 109.1 MB in the beginning and 172.0 MB in the end (delta: 62.9 MB). Free memory was 73.1 MB in the beginning and 110.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 82.2 MB. Max. memory is 16.1 GB. * Witness Printer took 110.15 ms. Allocated memory is still 172.0 MB. Free memory was 110.7 MB in the beginning and 88.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 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 - CounterExampleResult [Line: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int __SELECTED_FEATURE_base ; [L43] int __SELECTED_FEATURE_highWaterSensor ; [L44] int __SELECTED_FEATURE_lowWaterSensor ; [L45] int __SELECTED_FEATURE_methaneQuery ; [L46] int __SELECTED_FEATURE_methaneAlarm ; [L47] int __SELECTED_FEATURE_stopCommand ; [L48] int __SELECTED_FEATURE_startCommand ; [L49] int __GUIDSL_ROOT_PRODUCTION ; [L142] int pumpRunning = 0; [L143] int systemActive = 1; [L643] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; [L1028] int cleanupTimeShifts = 4; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1101] int retValue_acc ; [L1102] int tmp ; [L874] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] __SELECTED_FEATURE_base = 1 [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] __SELECTED_FEATURE_highWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] __SELECTED_FEATURE_lowWaterSensor = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] __SELECTED_FEATURE_methaneQuery = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] __SELECTED_FEATURE_methaneAlarm = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L864] __SELECTED_FEATURE_stopCommand = select_one() [L845] int retValue_acc ; [L846] int choice = __VERIFIER_nondet_int(); [L849] retValue_acc = choice [L850] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] __SELECTED_FEATURE_startCommand = select_one() [L879] int retValue_acc ; [L882] retValue_acc = __SELECTED_FEATURE_base [L883] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1108] tmp = valid_product() [L1110] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L934] COND TRUE waterLevel < 2 [L935] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L946] COND FALSE !(\read(methaneLevelCritical)) [L949] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L106] tmp___1 = __VERIFIER_nondet_int() [L108] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L150] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L293] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L250] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L207] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L179] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE ! pumpRunning [L413] int retValue_acc ; [L414] int tmp ; [L415] int tmp___0 ; [L996] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L999] COND FALSE !(waterLevel < 2) [L1003] retValue_acc = 0 [L1004] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L419] tmp = isHighWaterSensorDry() [L421] COND FALSE !(\read(tmp)) [L424] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] retValue_acc = tmp___0 [L427] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] tmp = isHighWaterLevel() [L186] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L335] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L310] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L890] int tmp ; [L891] int tmp___0 ; [L955] int retValue_acc ; [L958] retValue_acc = methaneLevelCritical [L959] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND TRUE \read(tmp) [L368] int retValue_acc ; [L371] retValue_acc = pumpRunning [L372] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L899] tmp___0 = isPumpRunning() [L901] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L1023] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=1, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 1023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 470 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2967.6ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 26.5ms, AutomataDifference: 1490.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3114 SDtfs, 5625 SDslu, 5333 SDs, 0 SdLazy, 540 SolverSat, 167 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 644.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 223.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=735occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 298.4ms AutomataMinimizationTime, 9 MinimizatonAttempts, 2124 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.3ms SsaConstructionTime, 314.3ms SatisfiabilityAnalysisTime, 498.9ms InterpolantComputationTime, 346 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-26 08:43:15,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...