./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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_spec3_product45.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 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 15:08:20,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 15:08:20,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 15:08:20,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 15:08:20,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 15:08:20,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 15:08:20,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 15:08:20,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 15:08:20,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 15:08:20,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 15:08:20,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 15:08:20,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 15:08:20,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 15:08:20,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 15:08:20,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 15:08:20,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 15:08:20,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 15:08:20,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 15:08:20,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 15:08:20,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 15:08:20,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 15:08:20,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 15:08:20,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 15:08:20,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 15:08:20,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 15:08:20,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 15:08:20,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 15:08:20,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 15:08:20,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 15:08:20,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 15:08:20,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 15:08:20,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 15:08:20,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 15:08:20,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 15:08:20,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 15:08:20,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 15:08:20,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 15:08:20,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 15:08:20,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 15:08:20,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 15:08:20,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 15:08:20,142 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 15:08:20,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 15:08:20,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 15:08:20,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 15:08:20,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 15:08:20,159 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 15:08:20,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 15:08:20,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 15:08:20,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 15:08:20,160 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 15:08:20,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 15:08:20,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 15:08:20,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 15:08:20,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 15:08:20,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 15:08:20,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 15:08:20,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 15:08:20,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 15:08:20,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 15:08:20,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 15:08:20,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:20,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 15:08:20,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 15:08:20,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 15:08:20,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 15:08:20,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 15:08:20,165 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 15:08:20,165 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 15:08:20,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 15:08:20,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 15:08:20,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c4adbf609ddd472cb6a462753c6f5cc9af64c97af02da4060f4102700285790 [2021-12-17 15:08:20,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 15:08:20,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 15:08:20,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 15:08:20,375 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 15:08:20,376 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 15:08:20,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2021-12-17 15:08:20,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a58ea604/6eaf480da78b4c4e89296827e0c535cc/FLAGcafcbc740 [2021-12-17 15:08:20,822 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 15:08:20,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product45.cil.c [2021-12-17 15:08:20,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a58ea604/6eaf480da78b4c4e89296827e0c535cc/FLAGcafcbc740 [2021-12-17 15:08:20,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a58ea604/6eaf480da78b4c4e89296827e0c535cc [2021-12-17 15:08:20,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 15:08:20,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 15:08:20,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:20,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 15:08:20,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 15:08:20,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26da2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:20, skipping insertion in model container [2021-12-17 15:08:20,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 03:08:20" (1/1) ... [2021-12-17 15:08:20,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 15:08:20,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 15:08:21,038 WARN L230 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_spec3_product45.cil.c[8617,8630] [2021-12-17 15:08:21,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:21,089 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 15:08:21,129 WARN L230 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_spec3_product45.cil.c[8617,8630] [2021-12-17 15:08:21,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 15:08:21,168 INFO L208 MainTranslator]: Completed translation [2021-12-17 15:08:21,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21 WrapperNode [2021-12-17 15:08:21,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 15:08:21,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:21,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 15:08:21,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 15:08:21,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,208 INFO L137 Inliner]: procedures = 54, calls = 156, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 250 [2021-12-17 15:08:21,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 15:08:21,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 15:08:21,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 15:08:21,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 15:08:21,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 15:08:21,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 15:08:21,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 15:08:21,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 15:08:21,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (1/1) ... [2021-12-17 15:08:21,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 15:08:21,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:21,277 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) [2021-12-17 15:08:21,286 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 [2021-12-17 15:08:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 15:08:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-17 15:08:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-17 15:08:21,308 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-17 15:08:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-17 15:08:21,309 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-17 15:08:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-17 15:08:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-17 15:08:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-17 15:08:21,310 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-17 15:08:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-17 15:08:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:08:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:08:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-17 15:08:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-17 15:08:21,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 15:08:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-17 15:08:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-17 15:08:21,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 15:08:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 15:08:21,386 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 15:08:21,399 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 15:08:21,641 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 15:08:21,651 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 15:08:21,651 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-17 15:08:21,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21 BoogieIcfgContainer [2021-12-17 15:08:21,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 15:08:21,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 15:08:21,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 15:08:21,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 15:08:21,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 03:08:20" (1/3) ... [2021-12-17 15:08:21,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab78f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:21, skipping insertion in model container [2021-12-17 15:08:21,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 03:08:21" (2/3) ... [2021-12-17 15:08:21,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab78f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 03:08:21, skipping insertion in model container [2021-12-17 15:08:21,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21" (3/3) ... [2021-12-17 15:08:21,666 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product45.cil.c [2021-12-17 15:08:21,672 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 15:08:21,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 15:08:21,704 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 15:08:21,710 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-17 15:08:21,710 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 15:08:21,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-12-17 15:08:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-17 15:08:21,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:21,752 INFO L514 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] [2021-12-17 15:08:21,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:21,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:21,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1088804663, now seen corresponding path program 1 times [2021-12-17 15:08:21,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:21,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387037688] [2021-12-17 15:08:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:21,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-17 15:08:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:21,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:21,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387037688] [2021-12-17 15:08:21,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387037688] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:21,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:21,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 15:08:21,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005499590] [2021-12-17 15:08:21,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:21,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-17 15:08:21,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-17 15:08:22,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:22,011 INFO L87 Difference]: Start difference. First operand has 95 states, 71 states have (on average 1.380281690140845) internal successors, (98), 79 states have internal predecessors, (98), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,049 INFO L93 Difference]: Finished difference Result 182 states and 247 transitions. [2021-12-17 15:08:22,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-17 15:08:22,051 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-17 15:08:22,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,061 INFO L225 Difference]: With dead ends: 182 [2021-12-17 15:08:22,061 INFO L226 Difference]: Without dead ends: 86 [2021-12-17 15:08:22,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-17 15:08:22,068 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-12-17 15:08:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-12-17 15:08:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 71 states have internal predecessors, (84), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-17 15:08:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2021-12-17 15:08:22,111 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 25 [2021-12-17 15:08:22,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,111 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2021-12-17 15:08:22,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,112 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2021-12-17 15:08:22,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 15:08:22,115 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 15:08:22,116 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,119 INFO L85 PathProgramCache]: Analyzing trace with hash 913970031, now seen corresponding path program 1 times [2021-12-17 15:08:22,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087643526] [2021-12-17 15:08:22,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087643526] [2021-12-17 15:08:22,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087643526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:22,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511542430] [2021-12-17 15:08:22,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:22,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,201 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,220 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2021-12-17 15:08:22,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:22,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-17 15:08:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,222 INFO L225 Difference]: With dead ends: 138 [2021-12-17 15:08:22,223 INFO L226 Difference]: Without dead ends: 77 [2021-12-17 15:08:22,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,224 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-17 15:08:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-17 15:08:22,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:08:22,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2021-12-17 15:08:22,232 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 26 [2021-12-17 15:08:22,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,233 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2021-12-17 15:08:22,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,233 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2021-12-17 15:08:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-17 15:08:22,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,234 INFO L514 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] [2021-12-17 15:08:22,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 15:08:22,234 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1563838683, now seen corresponding path program 1 times [2021-12-17 15:08:22,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459258797] [2021-12-17 15:08:22,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459258797] [2021-12-17 15:08:22,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459258797] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 15:08:22,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252648084] [2021-12-17 15:08:22,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 15:08:22,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 15:08:22,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,306 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,318 INFO L93 Difference]: Finished difference Result 147 states and 192 transitions. [2021-12-17 15:08:22,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 15:08:22,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-12-17 15:08:22,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,319 INFO L225 Difference]: With dead ends: 147 [2021-12-17 15:08:22,319 INFO L226 Difference]: Without dead ends: 77 [2021-12-17 15:08:22,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 15:08:22,321 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 81 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 97 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-17 15:08:22,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-17 15:08:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-17 15:08:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 65 states have internal predecessors, (76), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-17 15:08:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2021-12-17 15:08:22,328 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 30 [2021-12-17 15:08:22,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,328 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2021-12-17 15:08:22,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-17 15:08:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2021-12-17 15:08:22,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-17 15:08:22,330 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,330 INFO L514 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] [2021-12-17 15:08:22,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 15:08:22,330 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1485355981, now seen corresponding path program 1 times [2021-12-17 15:08:22,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671681159] [2021-12-17 15:08:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-17 15:08:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671681159] [2021-12-17 15:08:22,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671681159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-17 15:08:22,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32552823] [2021-12-17 15:08:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 15:08:22,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 15:08:22,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-17 15:08:22,413 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,594 INFO L93 Difference]: Finished difference Result 230 states and 292 transitions. [2021-12-17 15:08:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:22,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 40 [2021-12-17 15:08:22,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,596 INFO L225 Difference]: With dead ends: 230 [2021-12-17 15:08:22,596 INFO L226 Difference]: Without dead ends: 160 [2021-12-17 15:08:22,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:22,598 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 187 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 312 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:22,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-17 15:08:22,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2021-12-17 15:08:22,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.264957264957265) internal successors, (148), 125 states have internal predecessors, (148), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2021-12-17 15:08:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2021-12-17 15:08:22,635 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 40 [2021-12-17 15:08:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,638 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2021-12-17 15:08:22,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-17 15:08:22,638 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2021-12-17 15:08:22,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-17 15:08:22,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,639 INFO L514 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, 1, 1, 1] [2021-12-17 15:08:22,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 15:08:22,639 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1430117211, now seen corresponding path program 1 times [2021-12-17 15:08:22,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800036788] [2021-12-17 15:08:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-17 15:08:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:22,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:22,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800036788] [2021-12-17 15:08:22,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800036788] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:22,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:22,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:22,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524602422] [2021-12-17 15:08:22,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:22,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:22,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:22,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:22,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:22,714 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:22,893 INFO L93 Difference]: Finished difference Result 399 states and 509 transitions. [2021-12-17 15:08:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2021-12-17 15:08:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:22,896 INFO L225 Difference]: With dead ends: 399 [2021-12-17 15:08:22,896 INFO L226 Difference]: Without dead ends: 252 [2021-12-17 15:08:22,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:22,898 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 138 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:22,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 380 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:22,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-12-17 15:08:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-12-17 15:08:22,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 185 states have (on average 1.2540540540540541) internal successors, (232), 196 states have internal predecessors, (232), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2021-12-17 15:08:22,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 302 transitions. [2021-12-17 15:08:22,913 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 302 transitions. Word has length 46 [2021-12-17 15:08:22,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:22,914 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 302 transitions. [2021-12-17 15:08:22,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-17 15:08:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 302 transitions. [2021-12-17 15:08:22,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:22,915 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:22,915 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:22,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 15:08:22,916 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:22,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:22,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1782384523, now seen corresponding path program 1 times [2021-12-17 15:08:22,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:22,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455198153] [2021-12-17 15:08:22,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:22,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:23,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455198153] [2021-12-17 15:08:23,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455198153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:08:23,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175716497] [2021-12-17 15:08:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:23,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:23,003 INFO L87 Difference]: Start difference. First operand 244 states and 302 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:08:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,338 INFO L93 Difference]: Finished difference Result 598 states and 771 transitions. [2021-12-17 15:08:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-17 15:08:23,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2021-12-17 15:08:23,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,341 INFO L225 Difference]: With dead ends: 598 [2021-12-17 15:08:23,342 INFO L226 Difference]: Without dead ends: 451 [2021-12-17 15:08:23,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-12-17 15:08:23,343 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 380 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [385 Valid, 384 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:08:23,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-12-17 15:08:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 405. [2021-12-17 15:08:23,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.2287581699346406) internal successors, (376), 326 states have internal predecessors, (376), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2021-12-17 15:08:23,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 503 transitions. [2021-12-17 15:08:23,384 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 503 transitions. Word has length 50 [2021-12-17 15:08:23,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,385 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 503 transitions. [2021-12-17 15:08:23,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-17 15:08:23,385 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 503 transitions. [2021-12-17 15:08:23,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:23,387 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,387 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:23,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 15:08:23,387 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1648371017, now seen corresponding path program 1 times [2021-12-17 15:08:23,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322025304] [2021-12-17 15:08:23,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:23,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322025304] [2021-12-17 15:08:23,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322025304] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-17 15:08:23,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750042486] [2021-12-17 15:08:23,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-17 15:08:23,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-17 15:08:23,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-17 15:08:23,435 INFO L87 Difference]: Start difference. First operand 405 states and 503 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,609 INFO L93 Difference]: Finished difference Result 751 states and 939 transitions. [2021-12-17 15:08:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-17 15:08:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2021-12-17 15:08:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,613 INFO L225 Difference]: With dead ends: 751 [2021-12-17 15:08:23,613 INFO L226 Difference]: Without dead ends: 439 [2021-12-17 15:08:23,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:08:23,617 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 149 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 361 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-12-17 15:08:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 405. [2021-12-17 15:08:23,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.2254901960784315) internal successors, (375), 326 states have internal predecessors, (375), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2021-12-17 15:08:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 502 transitions. [2021-12-17 15:08:23,648 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 502 transitions. Word has length 50 [2021-12-17 15:08:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,648 INFO L470 AbstractCegarLoop]: Abstraction has 405 states and 502 transitions. [2021-12-17 15:08:23,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 502 transitions. [2021-12-17 15:08:23,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-17 15:08:23,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,655 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:23,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 15:08:23,655 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1867225735, now seen corresponding path program 1 times [2021-12-17 15:08:23,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369982973] [2021-12-17 15:08:23,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-17 15:08:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:23,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:23,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369982973] [2021-12-17 15:08:23,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369982973] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:23,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:23,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:08:23,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151623648] [2021-12-17 15:08:23,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:23,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:08:23,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:23,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:08:23,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:23,719 INFO L87 Difference]: Start difference. First operand 405 states and 502 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:23,869 INFO L93 Difference]: Finished difference Result 832 states and 1043 transitions. [2021-12-17 15:08:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-17 15:08:23,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2021-12-17 15:08:23,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:23,872 INFO L225 Difference]: With dead ends: 832 [2021-12-17 15:08:23,872 INFO L226 Difference]: Without dead ends: 434 [2021-12-17 15:08:23,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:08:23,875 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 153 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:23,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 412 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-12-17 15:08:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 408. [2021-12-17 15:08:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 311 states have (on average 1.2186495176848875) internal successors, (379), 330 states have internal predecessors, (379), 49 states have call successors, (49), 38 states have call predecessors, (49), 47 states have return successors, (76), 50 states have call predecessors, (76), 49 states have call successors, (76) [2021-12-17 15:08:23,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 504 transitions. [2021-12-17 15:08:23,901 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 504 transitions. Word has length 50 [2021-12-17 15:08:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:23,901 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 504 transitions. [2021-12-17 15:08:23,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-17 15:08:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 504 transitions. [2021-12-17 15:08:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-17 15:08:23,902 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:23,902 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:23,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 15:08:23,903 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:23,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash 88017873, now seen corresponding path program 1 times [2021-12-17 15:08:23,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:23,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569171893] [2021-12-17 15:08:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:23,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:23,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-17 15:08:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:24,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:24,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569171893] [2021-12-17 15:08:24,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569171893] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:24,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023993428] [2021-12-17 15:08:24,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:24,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:24,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:24,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:08:24,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 15:08:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-17 15:08:24,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 15:08:24,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 15:08:24,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023993428] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:24,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 15:08:24,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2021-12-17 15:08:24,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240138194] [2021-12-17 15:08:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:24,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:24,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:24,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:08:24,353 INFO L87 Difference]: Start difference. First operand 408 states and 504 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-17 15:08:24,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:24,440 INFO L93 Difference]: Finished difference Result 1193 states and 1500 transitions. [2021-12-17 15:08:24,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:08:24,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-17 15:08:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:24,444 INFO L225 Difference]: With dead ends: 1193 [2021-12-17 15:08:24,444 INFO L226 Difference]: Without dead ends: 792 [2021-12-17 15:08:24,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-17 15:08:24,445 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 58 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:24,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 548 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-12-17 15:08:24,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2021-12-17 15:08:24,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 600 states have (on average 1.2066666666666668) internal successors, (724), 634 states have internal predecessors, (724), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (154), 98 states have call predecessors, (154), 97 states have call successors, (154) [2021-12-17 15:08:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 975 transitions. [2021-12-17 15:08:24,476 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 975 transitions. Word has length 59 [2021-12-17 15:08:24,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:24,476 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 975 transitions. [2021-12-17 15:08:24,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-17 15:08:24,476 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 975 transitions. [2021-12-17 15:08:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-17 15:08:24,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:24,477 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:24,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 15:08:24,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:24,695 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:24,695 INFO L85 PathProgramCache]: Analyzing trace with hash -229819681, now seen corresponding path program 1 times [2021-12-17 15:08:24,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:24,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122152893] [2021-12-17 15:08:24,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:24,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-17 15:08:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-17 15:08:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-17 15:08:24,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:24,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122152893] [2021-12-17 15:08:24,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122152893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:24,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:24,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-17 15:08:24,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609299445] [2021-12-17 15:08:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:24,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-17 15:08:24,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:24,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-17 15:08:24,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:24,788 INFO L87 Difference]: Start difference. First operand 790 states and 975 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-17 15:08:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,077 INFO L93 Difference]: Finished difference Result 1596 states and 1965 transitions. [2021-12-17 15:08:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-17 15:08:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 60 [2021-12-17 15:08:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,081 INFO L225 Difference]: With dead ends: 1596 [2021-12-17 15:08:25,081 INFO L226 Difference]: Without dead ends: 813 [2021-12-17 15:08:25,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2021-12-17 15:08:25,084 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 353 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:25,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 523 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-17 15:08:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2021-12-17 15:08:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 790. [2021-12-17 15:08:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 600 states have (on average 1.19) internal successors, (714), 634 states have internal predecessors, (714), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (139), 98 states have call predecessors, (139), 97 states have call successors, (139) [2021-12-17 15:08:25,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 950 transitions. [2021-12-17 15:08:25,111 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 950 transitions. Word has length 60 [2021-12-17 15:08:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:25,112 INFO L470 AbstractCegarLoop]: Abstraction has 790 states and 950 transitions. [2021-12-17 15:08:25,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-12-17 15:08:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 950 transitions. [2021-12-17 15:08:25,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-17 15:08:25,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:25,114 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:25,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 15:08:25,114 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:25,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:25,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2090024307, now seen corresponding path program 1 times [2021-12-17 15:08:25,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:25,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982403431] [2021-12-17 15:08:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:25,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-17 15:08:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-17 15:08:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-17 15:08:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-17 15:08:25,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:25,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982403431] [2021-12-17 15:08:25,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982403431] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:25,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:25,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-17 15:08:25,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684073884] [2021-12-17 15:08:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:25,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-17 15:08:25,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-17 15:08:25,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-17 15:08:25,204 INFO L87 Difference]: Start difference. First operand 790 states and 950 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-17 15:08:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:25,983 INFO L93 Difference]: Finished difference Result 1574 states and 1912 transitions. [2021-12-17 15:08:25,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-17 15:08:25,984 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 63 [2021-12-17 15:08:25,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:25,987 INFO L225 Difference]: With dead ends: 1574 [2021-12-17 15:08:25,988 INFO L226 Difference]: Without dead ends: 791 [2021-12-17 15:08:25,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=999, Unknown=0, NotChecked=0, Total=1332 [2021-12-17 15:08:25,990 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 404 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:25,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [409 Valid, 477 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 15:08:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-12-17 15:08:26,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 758. [2021-12-17 15:08:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 568 states have (on average 1.158450704225352) internal successors, (658), 602 states have internal predecessors, (658), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (133), 98 states have call predecessors, (133), 97 states have call successors, (133) [2021-12-17 15:08:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 888 transitions. [2021-12-17 15:08:26,029 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 888 transitions. Word has length 63 [2021-12-17 15:08:26,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,029 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 888 transitions. [2021-12-17 15:08:26,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 8 states have internal predecessors, (50), 4 states have call successors, (7), 5 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-17 15:08:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 888 transitions. [2021-12-17 15:08:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-17 15:08:26,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,032 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:26,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 15:08:26,032 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,033 INFO L85 PathProgramCache]: Analyzing trace with hash -168137563, now seen corresponding path program 1 times [2021-12-17 15:08:26,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335125589] [2021-12-17 15:08:26,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:26,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:08:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:08:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:08:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:08:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,109 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:08:26,109 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335125589] [2021-12-17 15:08:26,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335125589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,110 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-17 15:08:26,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51537176] [2021-12-17 15:08:26,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-17 15:08:26,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-17 15:08:26,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-17 15:08:26,111 INFO L87 Difference]: Start difference. First operand 758 states and 888 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:08:26,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,256 INFO L93 Difference]: Finished difference Result 1513 states and 1792 transitions. [2021-12-17 15:08:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-17 15:08:26,257 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2021-12-17 15:08:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,259 INFO L225 Difference]: With dead ends: 1513 [2021-12-17 15:08:26,260 INFO L226 Difference]: Without dead ends: 762 [2021-12-17 15:08:26,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-17 15:08:26,262 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 132 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 401 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-12-17 15:08:26,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 758. [2021-12-17 15:08:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 568 states have (on average 1.1514084507042253) internal successors, (654), 602 states have internal predecessors, (654), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (133), 98 states have call predecessors, (133), 97 states have call successors, (133) [2021-12-17 15:08:26,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 884 transitions. [2021-12-17 15:08:26,283 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 884 transitions. Word has length 97 [2021-12-17 15:08:26,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,284 INFO L470 AbstractCegarLoop]: Abstraction has 758 states and 884 transitions. [2021-12-17 15:08:26,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:08:26,284 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 884 transitions. [2021-12-17 15:08:26,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-17 15:08:26,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,286 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:26,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 15:08:26,286 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2079180121, now seen corresponding path program 1 times [2021-12-17 15:08:26,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863002181] [2021-12-17 15:08:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-17 15:08:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:08:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-17 15:08:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:08:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:08:26,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:08:26,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863002181] [2021-12-17 15:08:26,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863002181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 15:08:26,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 15:08:26,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-17 15:08:26,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654595690] [2021-12-17 15:08:26,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 15:08:26,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-17 15:08:26,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-17 15:08:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-17 15:08:26,352 INFO L87 Difference]: Start difference. First operand 758 states and 884 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:08:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:26,491 INFO L93 Difference]: Finished difference Result 1367 states and 1613 transitions. [2021-12-17 15:08:26,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-17 15:08:26,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 97 [2021-12-17 15:08:26,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:26,494 INFO L225 Difference]: With dead ends: 1367 [2021-12-17 15:08:26,494 INFO L226 Difference]: Without dead ends: 616 [2021-12-17 15:08:26,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-17 15:08:26,495 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 143 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:26,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 309 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 15:08:26,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-12-17 15:08:26,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-12-17 15:08:26,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 460 states have (on average 1.1521739130434783) internal successors, (530), 488 states have internal predecessors, (530), 81 states have call successors, (81), 64 states have call predecessors, (81), 74 states have return successors, (103), 78 states have call predecessors, (103), 81 states have call successors, (103) [2021-12-17 15:08:26,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 714 transitions. [2021-12-17 15:08:26,519 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 714 transitions. Word has length 97 [2021-12-17 15:08:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:26,519 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 714 transitions. [2021-12-17 15:08:26,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-17 15:08:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 714 transitions. [2021-12-17 15:08:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-17 15:08:26,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 15:08:26,521 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:26,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 15:08:26,521 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 15:08:26,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 15:08:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1353786525, now seen corresponding path program 1 times [2021-12-17 15:08:26,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 15:08:26,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523156430] [2021-12-17 15:08:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 15:08:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-17 15:08:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-17 15:08:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-17 15:08:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-17 15:08:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-17 15:08:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-17 15:08:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-17 15:08:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-17 15:08:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-17 15:08:26,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 15:08:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523156430] [2021-12-17 15:08:26,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523156430] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 15:08:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244401954] [2021-12-17 15:08:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 15:08:26,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 15:08:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 15:08:26,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 15:08:26,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 15:08:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 15:08:26,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-17 15:08:26,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 15:08:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-17 15:08:26,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 15:08:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-17 15:08:27,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244401954] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 15:08:27,237 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 15:08:27,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 22 [2021-12-17 15:08:27,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346001338] [2021-12-17 15:08:27,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 15:08:27,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-17 15:08:27,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 15:08:27,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-17 15:08:27,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2021-12-17 15:08:27,238 INFO L87 Difference]: Start difference. First operand 616 states and 714 transitions. Second operand has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2021-12-17 15:08:28,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 15:08:28,270 INFO L93 Difference]: Finished difference Result 1288 states and 1544 transitions. [2021-12-17 15:08:28,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-12-17 15:08:28,271 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) Word has length 97 [2021-12-17 15:08:28,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 15:08:28,272 INFO L225 Difference]: With dead ends: 1288 [2021-12-17 15:08:28,272 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 15:08:28,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 206 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1065, Invalid=3627, Unknown=0, NotChecked=0, Total=4692 [2021-12-17 15:08:28,275 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 793 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 15:08:28,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 645 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 15:08:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 15:08:28,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 15:08:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 15:08:28,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 15:08:28,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2021-12-17 15:08:28,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 15:08:28,277 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 15:08:28,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.318181818181818) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2021-12-17 15:08:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 15:08:28,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 15:08:28,279 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 15:08:28,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-17 15:08:28,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-17 15:08:28,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 15:08:32,026 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 318 324) no Hoare annotation was computed. [2021-12-17 15:08:32,026 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 318 324) the Hoare annotation is: true [2021-12-17 15:08:32,027 INFO L854 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 119 130) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse6 (not (= |old(~methaneLevelCritical~0)| ~systemActive~0))) (.cse7 (= ~methaneLevelCritical~0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse3 .cse4) (or .cse5 .cse1 .cse4 .cse6 .cse7) (or .cse1 .cse2 .cse4 .cse6 .cse7))) [2021-12-17 15:08:32,027 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 119 130) no Hoare annotation was computed. [2021-12-17 15:08:32,027 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 119 130) no Hoare annotation was computed. [2021-12-17 15:08:32,027 INFO L854 garLoopResultBuilder]: At program point L407(lines 402 409) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse2))) [2021-12-17 15:08:32,034 INFO L854 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse5 .cse3 .cse6))) [2021-12-17 15:08:32,034 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 79) no Hoare annotation was computed. [2021-12-17 15:08:32,035 INFO L854 garLoopResultBuilder]: At program point L168(lines 163 171) the Hoare annotation is: (let ((.cse5 (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse7 (<= |timeShift_getWaterLevel_#res#1| 1)) (.cse12 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse9 (= ~pumpRunning~0 0))) (let ((.cse11 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse10 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and .cse5 .cse6 .cse7 .cse12 .cse9))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~waterLevel~0)| 1)) .cse3) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= |timeShift_getWaterLevel_#res#1| 1) .cse1 .cse2) (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse4 .cse5 .cse6 .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse8 (and .cse4 .cse5 .cse6 .cse7 .cse9) .cse0 .cse2 .cse10)) (or .cse8 .cse0 .cse11 .cse1) (or .cse8 .cse0 .cse11 .cse10) (or .cse8 .cse0 .cse1 (and .cse5 .cse12 (<= 1 ~pumpRunning~0)) .cse2 .cse3)))) [2021-12-17 15:08:32,035 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 294 317) no Hoare annotation was computed. [2021-12-17 15:08:32,035 INFO L854 garLoopResultBuilder]: At program point L358(line 358) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse5 .cse3 .cse6))) [2021-12-17 15:08:32,035 INFO L858 garLoopResultBuilder]: For program point L358-1(line 358) no Hoare annotation was computed. [2021-12-17 15:08:32,035 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 82) no Hoare annotation was computed. [2021-12-17 15:08:32,035 INFO L854 garLoopResultBuilder]: At program point L69-1(lines 54 86) the Hoare annotation is: (let ((.cse12 (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0)) (.cse14 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~0#1| 1)) (.cse3 (<= ~waterLevel~0 1)) (.cse15 (<= |timeShift_getWaterLevel_#res#1| 1)) (.cse16 (= ~methaneLevelCritical~0 0)) (.cse13 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse9 (and .cse12 .cse14 .cse3 .cse15 .cse16 .cse13 .cse4)) (.cse11 (not .cse16)) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse8 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse10 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1|))) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 (and .cse1 .cse2 .cse3 .cse7) .cse8) (or .cse9 .cse5 .cse10 .cse11 (not (<= |old(~waterLevel~0)| 1))) (or .cse0 .cse9 .cse5 .cse10 (and .cse12 .cse13 (<= 1 ~pumpRunning~0)) .cse11) (or (and .cse12 .cse1 .cse14 .cse3 .cse15 .cse7) .cse0 .cse5 .cse11 (and .cse12 .cse1 .cse14 .cse3 .cse15 .cse4) .cse8) (or .cse0 .cse5 .cse6 .cse10 (and .cse2 .cse13 .cse7))))) [2021-12-17 15:08:32,036 INFO L854 garLoopResultBuilder]: At program point L61(line 61) the Hoare annotation is: (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse12 (<= ~waterLevel~0 1)) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~methaneLevelCritical~0 0)) (.cse14 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse12 .cse6 .cse13 .cse14 (= ~systemActive~0 1) .cse7)) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (and .cse11 .cse12 .cse14)) (.cse9 (not .cse13)) (.cse4 (and .cse11 .cse12 .cse7)) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 (and .cse6 .cse7) .cse1 .cse2 .cse8) (or .cse1 .cse8 .cse9 .cse10 (not (<= |old(~waterLevel~0)| 1))) (or .cse0 (and .cse6 (<= 1 ~pumpRunning~0)) .cse1 .cse8 .cse9 .cse10) (or .cse0 .cse1 .cse3 .cse9 .cse4 .cse5)))) [2021-12-17 15:08:32,036 INFO L858 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2021-12-17 15:08:32,036 INFO L854 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse1 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse6 .cse3) (or .cse0 .cse2 .cse6 .cse5))) [2021-12-17 15:08:32,036 INFO L854 garLoopResultBuilder]: At program point L371-1(lines 352 376) the Hoare annotation is: (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse12 (<= ~waterLevel~0 1)) (.cse6 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse13 (= ~methaneLevelCritical~0 0)) (.cse14 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (= ~pumpRunning~0 0))) (let ((.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse12 .cse6 .cse13 .cse14 (= ~systemActive~0 1) .cse7)) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (and .cse11 .cse12 .cse14)) (.cse9 (not .cse13)) (.cse4 (and .cse11 .cse12 .cse7)) (.cse5 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 (and .cse6 .cse7) .cse1 .cse2 .cse8) (or .cse1 .cse8 .cse9 .cse10 (not (<= |old(~waterLevel~0)| 1))) (or .cse0 (and .cse6 (<= 1 ~pumpRunning~0)) .cse1 .cse8 .cse9 .cse10) (or .cse0 .cse1 .cse3 .cse9 .cse4 .cse5)))) [2021-12-17 15:08:32,036 INFO L858 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2021-12-17 15:08:32,036 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-12-17 15:08:32,036 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed. [2021-12-17 15:08:32,036 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 95 106) the Hoare annotation is: (let ((.cse4 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse5 .cse3 .cse6))) [2021-12-17 15:08:32,037 INFO L854 garLoopResultBuilder]: At program point L591(lines 586 593) the Hoare annotation is: (let ((.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse3 .cse4) (or .cse0 .cse1 .cse5 .cse2) (or .cse0 .cse1 .cse5 .cse4))) [2021-12-17 15:08:32,037 INFO L854 garLoopResultBuilder]: At program point L426(lines 421 429) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (not (<= |old(~waterLevel~0)| 1))) (or .cse3 (and (= |timeShift___utac_acc__Specification3_spec__1_~tmp~0#1| 0) (= ~waterLevel~0 |old(~waterLevel~0)|) (<= 1 ~pumpRunning~0) (not (= 0 |timeShift_isPumpRunning_#res#1|))) .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2 .cse4) (or .cse3 .cse0 .cse5 .cse1) (or .cse3 .cse0 .cse5 .cse4))) [2021-12-17 15:08:32,037 INFO L858 garLoopResultBuilder]: For program point L298-1(lines 297 316) no Hoare annotation was computed. [2021-12-17 15:08:32,037 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 368) no Hoare annotation was computed. [2021-12-17 15:08:32,037 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 373) no Hoare annotation was computed. [2021-12-17 15:08:32,037 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 83) no Hoare annotation was computed. [2021-12-17 15:08:32,037 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 294 317) the Hoare annotation is: (let ((.cse8 (= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse1 (and .cse8 (= ~pumpRunning~0 0))) (.cse6 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (and .cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse2 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse6 .cse3) (or .cse0 .cse5 .cse2 .cse4 .cse7)))) [2021-12-17 15:08:32,038 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 294 317) no Hoare annotation was computed. [2021-12-17 15:08:32,038 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 590) no Hoare annotation was computed. [2021-12-17 15:08:32,038 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 189 218) no Hoare annotation was computed. [2021-12-17 15:08:32,038 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 189 218) the Hoare annotation is: true [2021-12-17 15:08:32,038 INFO L861 garLoopResultBuilder]: At program point L214(lines 189 218) the Hoare annotation is: true [2021-12-17 15:08:32,038 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-12-17 15:08:32,039 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-12-17 15:08:32,039 INFO L861 garLoopResultBuilder]: At program point L203-1(lines 203 207) the Hoare annotation is: true [2021-12-17 15:08:32,039 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-12-17 15:08:32,039 INFO L861 garLoopResultBuilder]: At program point L199-2(lines 199 213) the Hoare annotation is: true [2021-12-17 15:08:32,039 INFO L861 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: true [2021-12-17 15:08:32,039 INFO L858 garLoopResultBuilder]: For program point L195-1(line 195) no Hoare annotation was computed. [2021-12-17 15:08:32,039 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 131 139) the Hoare annotation is: true [2021-12-17 15:08:32,039 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 131 139) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 131 139) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L854 garLoopResultBuilder]: At program point L539(lines 496 541) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 1)) (.cse2 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse4) (and .cse0 .cse5 .cse7 .cse2 .cse3) (and .cse0 .cse6 .cse7 .cse1 .cse3))) [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 282) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 502) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 275 282) no Hoare annotation was computed. [2021-12-17 15:08:32,040 INFO L854 garLoopResultBuilder]: At program point L581(lines 576 584) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,040 INFO L861 garLoopResultBuilder]: At program point L259(lines 252 261) the Hoare annotation is: true [2021-12-17 15:08:32,041 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,041 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,041 INFO L854 garLoopResultBuilder]: At program point L573(lines 569 575) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,041 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,041 INFO L861 garLoopResultBuilder]: At program point L284(lines 265 287) the Hoare annotation is: true [2021-12-17 15:08:32,041 INFO L858 garLoopResultBuilder]: For program point L532(lines 532 536) no Hoare annotation was computed. [2021-12-17 15:08:32,041 INFO L854 garLoopResultBuilder]: At program point L532-2(lines 526 537) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3) (and .cse0 .cse5 .cse6 .cse1 .cse3))) [2021-12-17 15:08:32,041 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2021-12-17 15:08:32,042 INFO L858 garLoopResultBuilder]: For program point L516-1(lines 516 522) no Hoare annotation was computed. [2021-12-17 15:08:32,042 INFO L861 garLoopResultBuilder]: At program point L545(lines 486 549) the Hoare annotation is: true [2021-12-17 15:08:32,042 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 15:08:32,042 INFO L854 garLoopResultBuilder]: At program point L508(line 508) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse2 (<= 1 ~pumpRunning~0)) (.cse4 (<= ~waterLevel~0 2)) (.cse5 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 (= 1 ~systemActive~0) .cse3) (and .cse0 .cse4 .cse3 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse5 .cse6) (and .cse0 .cse7 .cse2 .cse4 .cse5))) [2021-12-17 15:08:32,043 INFO L854 garLoopResultBuilder]: At program point L248(lines 244 250) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,043 INFO L854 garLoopResultBuilder]: At program point L566(lines 562 568) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (= ~systemActive~0 1) (= ~pumpRunning~0 0)) [2021-12-17 15:08:32,043 INFO L854 garLoopResultBuilder]: At program point L542(lines 495 543) the Hoare annotation is: false [2021-12-17 15:08:32,043 INFO L858 garLoopResultBuilder]: For program point L497(lines 496 541) no Hoare annotation was computed. [2021-12-17 15:08:32,043 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 537) no Hoare annotation was computed. [2021-12-17 15:08:32,044 INFO L854 garLoopResultBuilder]: At program point L518(line 518) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (<= 1 ~pumpRunning~0)) (.cse1 (<= ~waterLevel~0 2)) (.cse3 (= ~systemActive~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3) (and .cse0 .cse5 .cse6 .cse1 .cse3))) [2021-12-17 15:08:32,044 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 107 118) no Hoare annotation was computed. [2021-12-17 15:08:32,044 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 107 118) no Hoare annotation was computed. [2021-12-17 15:08:32,044 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 107 118) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (<= 1 ~pumpRunning~0))) (.cse3 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse7 (not (<= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse5 .cse4 .cse6) (or .cse1 .cse2 .cse4 .cse6 .cse7) (or .cse5 .cse3 .cse4 (not (= ~systemActive~0 1)) .cse7))) [2021-12-17 15:08:32,044 INFO L854 garLoopResultBuilder]: At program point L481(lines 466 484) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0)) (.cse11 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 1)) (.cse12 (<= ~waterLevel~0 1)) (.cse13 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 1)) (.cse14 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse15 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0)) (.cse16 (= ~pumpRunning~0 0)) (.cse17 (= ~methaneLevelCritical~0 ~systemActive~0))) (let ((.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not .cse17)) (.cse7 (not (<= ~waterLevel~0 2))) (.cse3 (and .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17)) (.cse9 (and (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1|) .cse16)) (.cse0 (not .cse12)) (.cse6 (and .cse11 .cse12 .cse10 .cse13 .cse14 .cse15 .cse16)) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not .cse10))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 .cse5) (or .cse6 .cse1 .cse7 .cse4 .cse8 .cse9) (or .cse0 .cse1 .cse8 .cse5) (or .cse1 .cse2 .cse7 .cse3 .cse4 .cse9) (or .cse0 .cse6 .cse1 .cse4 .cse8)))) [2021-12-17 15:08:32,044 INFO L854 garLoopResultBuilder]: At program point L382(lines 377 384) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= ~waterLevel~0 2))) (.cse0 (not (<= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse3) (or (and (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~4#1| ~methaneLevelCritical~0) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) (<= 1 ~pumpRunning~0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1|)) .cse1 .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse5 .cse6))) [2021-12-17 15:08:32,045 INFO L858 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2021-12-17 15:08:32,046 INFO L858 garLoopResultBuilder]: For program point L475-2(lines 475 479) no Hoare annotation was computed. [2021-12-17 15:08:32,046 INFO L854 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse4 (not (<= ~waterLevel~0 1))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6 .cse7) (or .cse4 .cse0 .cse6 .cse3 .cse7) (or .cse0 .cse5 .cse1 .cse2))) [2021-12-17 15:08:32,046 INFO L858 garLoopResultBuilder]: For program point L345-1(lines 326 350) no Hoare annotation was computed. [2021-12-17 15:08:32,046 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 182) no Hoare annotation was computed. [2021-12-17 15:08:32,046 INFO L854 garLoopResultBuilder]: At program point L181(lines 172 185) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0)) (.cse12 (<= ~waterLevel~0 1)) (.cse13 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 1)) (.cse11 (= ~pumpRunning~0 0)) (.cse14 (= ~methaneLevelCritical~0 ~systemActive~0))) (let ((.cse1 (not .cse14)) (.cse5 (and .cse12 .cse13 .cse14 .cse11)) (.cse6 (not .cse12)) (.cse9 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (and .cse12 .cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse13 .cse11)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (and (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) .cse11)) (.cse3 (not (<= ~waterLevel~0 2))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not .cse10))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse0 .cse4 .cse8) (or .cse6 .cse0 .cse1 .cse9) (or .cse6 .cse0 .cse1 .cse4 .cse5) (or .cse6 .cse0 .cse8 .cse9) (or .cse7 .cse0 .cse2 .cse3 .cse4 .cse8)))) [2021-12-17 15:08:32,046 INFO L854 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse8 (<= ~waterLevel~0 1))) (let ((.cse4 (and (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 1) .cse8 (= |processEnvironment__wrappee__methaneQuery_~tmp~2#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 1) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1| 0) (= ~pumpRunning~0 0))) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse5 (not (<= ~waterLevel~0 2))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not .cse8)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5 .cse6 .cse7) (or .cse1 .cse4 .cse2 .cse5 .cse6) (or .cse0 .cse1 .cse7 .cse3)))) [2021-12-17 15:08:32,046 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 326 350) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 2))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse6 (not (<= ~waterLevel~0 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (<= 1 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 .cse5 .cse4) (or .cse6 .cse0 .cse1 .cse7 .cse8) (or .cse6 .cse0 .cse7 .cse5 .cse8))) [2021-12-17 15:08:32,047 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 342) no Hoare annotation was computed. [2021-12-17 15:08:32,047 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 326 350) no Hoare annotation was computed. [2021-12-17 15:08:32,047 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 347) no Hoare annotation was computed. [2021-12-17 15:08:32,047 INFO L858 garLoopResultBuilder]: For program point L392(lines 392 398) no Hoare annotation was computed. [2021-12-17 15:08:32,047 INFO L854 garLoopResultBuilder]: At program point L390(line 390) the Hoare annotation is: (let ((.cse4 (not (<= ~waterLevel~0 2))) (.cse5 (and (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1|) (= ~pumpRunning~0 0))) (.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (<= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse3 .cse5 .cse6) (or .cse1 .cse2 .cse4 .cse3 .cse5) (or .cse0 .cse1 .cse2 .cse7) (or .cse0 .cse1 .cse6 .cse7) (or .cse0 .cse1 .cse3 .cse6))) [2021-12-17 15:08:32,047 INFO L854 garLoopResultBuilder]: At program point L392-2(lines 385 401) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~2#1|)) (.cse7 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_#res#1|)) (.cse8 (= |processEnvironment__wrappee__methaneQuery_isHighWaterSensorDry_#res#1| 0)) (.cse9 (= |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp~5#1| 0)) (.cse10 (<= 1 |processEnvironment__wrappee__methaneQuery_isHighWaterLevel_~tmp___0~1#1|)) (.cse5 (not (<= ~waterLevel~0 2))) (.cse0 (not (<= ~waterLevel~0 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse11 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse1 .cse2 .cse5 (and .cse6 .cse7 (not (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~4#1| 0)) .cse8 .cse9 .cse10 (= ~pumpRunning~0 0)) .cse3) (or .cse0 .cse1 .cse11 .cse4) (or (and (= |processEnvironment__wrappee__methaneQuery_activatePump_~tmp~4#1| ~methaneLevelCritical~0) .cse6 .cse7 .cse8 (<= 1 ~pumpRunning~0) .cse9 .cse10) .cse1 .cse5 .cse3 .cse11) (or .cse0 .cse1 .cse3 .cse11))) [2021-12-17 15:08:32,047 INFO L858 garLoopResultBuilder]: For program point L390-1(line 390) no Hoare annotation was computed. [2021-12-17 15:08:32,047 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 410 420) the Hoare annotation is: true [2021-12-17 15:08:32,048 INFO L861 garLoopResultBuilder]: At program point L415(line 415) the Hoare annotation is: true [2021-12-17 15:08:32,048 INFO L858 garLoopResultBuilder]: For program point L415-1(line 415) no Hoare annotation was computed. [2021-12-17 15:08:32,048 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 410 420) no Hoare annotation was computed. [2021-12-17 15:08:32,048 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 410 420) no Hoare annotation was computed. [2021-12-17 15:08:32,050 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 15:08:32,051 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 15:08:32,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 03:08:32 BoogieIcfgContainer [2021-12-17 15:08:32,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 15:08:32,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 15:08:32,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 15:08:32,095 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 15:08:32,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 03:08:21" (3/4) ... [2021-12-17 15:08:32,097 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 15:08:32,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-17 15:08:32,101 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-17 15:08:32,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-17 15:08:32,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2021-12-17 15:08:32,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-17 15:08:32,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 15:08:32,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 15:08:32,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 15:08:32,112 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:32,113 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 15:08:32,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,128 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && systemActive == 1) && pumpRunning == 0)) || !(\old(waterLevel) <= 1))) && (((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && 1 <= pumpRunning)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && systemActive == 1) && pumpRunning == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(waterLevel) <= 2) || (((waterLevel <= \old(waterLevel) && !(0 == tmp)) && waterLevel <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((waterLevel <= \old(waterLevel) && !(0 == tmp)) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((((((((((tmp == 0 && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1))) && (((((!(\old(waterLevel) <= 2) || ((((((tmp == 0 && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning)) || !(methaneLevelCritical == 0))) && ((((((((((tmp == 0 && waterLevel <= \old(waterLevel)) && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && pumpRunning == \old(pumpRunning)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((((tmp == 0 && waterLevel <= \old(waterLevel)) && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || ((!(0 == tmp) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1)) || ((((tmp == 0 && waterLevel <= 1) && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((((((((waterLevel <= \old(waterLevel) && tmp == 0) && waterLevel <= 1) && \result <= 1) && pumpRunning == \old(pumpRunning)) || !(\old(waterLevel) <= 2)) || ((((waterLevel <= \old(waterLevel) && tmp == 0) && waterLevel <= 1) && \result <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning)) || !(methaneLevelCritical == 0)) || ((((tmp == 0 && waterLevel <= 1) && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && ((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || ((((((1 <= tmp && 1 <= \result) && !(tmp == 0)) && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((((((((tmp == methaneLevelCritical && 1 <= tmp) && 1 <= \result) && \result == 0) && 1 <= pumpRunning) && tmp == 0) && 1 <= tmp___0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((((((((tmp == methaneLevelCritical && 1 <= tmp) && 1 <= \result) && \result == 0) && 1 <= pumpRunning) && tmp == 0) && 1 <= tmp___0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:32,130 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (\result == 0 && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && \result == 1) && methaneLevelCritical == systemActive) && pumpRunning == 0)) && ((((!(waterLevel <= 1) || ((((waterLevel <= 1 && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && \result == 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && ((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && \result == 1) && methaneLevelCritical == systemActive) && pumpRunning == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((((((waterLevel <= 1 && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && \result == 1) && pumpRunning == 0) || !(1 == systemActive)) || (\result == 0 && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:32,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1)) && ((((!(\old(waterLevel) <= 2) || (((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && !(0 == \result))) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((((((tmp == 1 && waterLevel <= 1) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && (((((((((((tmp == 1 && waterLevel <= 1) && methaneLevelCritical == 0) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || ((((1 <= \result && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || ((((((tmp == 1 && waterLevel <= 1) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || ((((1 <= \result && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0))) && ((((!(waterLevel <= 1) || ((((((tmp == 1 && waterLevel <= 1) && methaneLevelCritical == 0) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) [2021-12-17 15:08:32,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) [2021-12-17 15:08:32,158 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 15:08:32,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 15:08:32,159 INFO L158 Benchmark]: Toolchain (without parser) took 11305.73ms. Allocated memory was 90.2MB in the beginning and 195.0MB in the end (delta: 104.9MB). Free memory was 57.5MB in the beginning and 154.0MB in the end (delta: -96.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,159 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 15:08:32,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.03ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.2MB in the beginning and 78.2MB in the end (delta: -20.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 75.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,160 INFO L158 Benchmark]: Boogie Preprocessor took 19.99ms. Allocated memory is still 109.1MB. Free memory was 75.6MB in the beginning and 74.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,160 INFO L158 Benchmark]: RCFGBuilder took 428.79ms. Allocated memory is still 109.1MB. Free memory was 74.1MB in the beginning and 84.8MB in the end (delta: -10.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,160 INFO L158 Benchmark]: TraceAbstraction took 10434.14ms. Allocated memory was 109.1MB in the beginning and 195.0MB in the end (delta: 86.0MB). Free memory was 84.4MB in the beginning and 160.3MB in the end (delta: -75.9MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,161 INFO L158 Benchmark]: Witness Printer took 63.81ms. Allocated memory is still 195.0MB. Free memory was 160.3MB in the beginning and 154.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-17 15:08:32,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.03ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.2MB in the beginning and 78.2MB in the end (delta: -20.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 75.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.99ms. Allocated memory is still 109.1MB. Free memory was 75.6MB in the beginning and 74.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.79ms. Allocated memory is still 109.1MB. Free memory was 74.1MB in the beginning and 84.8MB in the end (delta: -10.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10434.14ms. Allocated memory was 109.1MB in the beginning and 195.0MB in the end (delta: 86.0MB). Free memory was 84.4MB in the beginning and 160.3MB in the end (delta: -75.9MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. * Witness Printer took 63.81ms. Allocated memory is still 195.0MB. Free memory was 160.3MB in the beginning and 154.0MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 590]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3037 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2983 mSDsluCounter, 5149 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3596 mSDsCounter, 1206 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4017 IncrementalHoareTripleChecker+Invalid, 5223 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1206 mSolverCounterUnsat, 1553 mSDtfsCounter, 4017 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 605 GetRequests, 391 SyntacticMatches, 4 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1644 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=790occurred in iteration=9, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 182 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 2707 PreInvPairs, 2954 NumberOfFragments, 3009 HoareAnnotationTreeSize, 2707 FomulaSimplifications, 1098 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 43 FomulaSimplificationsInter, 12271 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 946 NumberOfCodeBlocks, 946 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1026 ConstructedInterpolants, 0 QuantifiedInterpolants, 2023 SizeOfPredicates, 7 NumberOfNonLiveVariables, 850 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 183/212 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((((((((!(\old(waterLevel) <= 2) || (((waterLevel <= \old(waterLevel) && !(0 == tmp)) && waterLevel <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || (((waterLevel <= \old(waterLevel) && !(0 == tmp)) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning))) && ((((((((((tmp == 0 && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && waterLevel == \old(waterLevel)) && pumpRunning == 0) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1))) && (((((!(\old(waterLevel) <= 2) || ((((((tmp == 0 && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && methaneLevelCritical == 0) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning)) || !(methaneLevelCritical == 0))) && ((((((((((tmp == 0 && waterLevel <= \old(waterLevel)) && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && pumpRunning == \old(pumpRunning)) || !(\old(waterLevel) <= 2)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((((tmp == 0 && waterLevel <= \old(waterLevel)) && tmp___0 <= 1) && waterLevel <= 1) && \result <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || ((!(0 == tmp) && waterLevel == \old(waterLevel)) && pumpRunning == \old(pumpRunning))) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: (((((((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || (\result == 0 && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && \result == 1) && methaneLevelCritical == systemActive) && pumpRunning == 0)) && ((((!(waterLevel <= 1) || ((((waterLevel <= 1 && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && \result == 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && ((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || (((waterLevel <= 1 && \result == 1) && methaneLevelCritical == systemActive) && pumpRunning == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((((((waterLevel <= 1 && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && \result == 1) && pumpRunning == 0) || !(1 == systemActive)) || (\result == 0 && pumpRunning == 0)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 252]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0 && waterLevel <= 2) && methaneLevelCritical == systemActive) && systemActive == 1) && pumpRunning == 0) || ((((splverifierCounter == 0 && waterLevel <= 1) && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0)) || ((((splverifierCounter == 0 && waterLevel <= 1) && 1 <= pumpRunning) && methaneLevelCritical == systemActive) && systemActive == 1)) || ((((splverifierCounter == 0 && methaneLevelCritical == 0) && 1 <= pumpRunning) && waterLevel <= 2) && systemActive == 1) - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 486]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: ((((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((((((tmp == 1 && waterLevel <= 1) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && (((((((((((tmp == 1 && waterLevel <= 1) && methaneLevelCritical == 0) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || ((((1 <= \result && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || ((((((tmp == 1 && waterLevel <= 1) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) || ((((1 <= \result && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0))) && ((((!(waterLevel <= 1) || ((((((tmp == 1 && waterLevel <= 1) && methaneLevelCritical == 0) && \result == 1) && tmp___0 == 0) && \result == 0) && pumpRunning == 0)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 377]: Loop Invariant Derived loop invariant: ((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) && (((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((((((((tmp == methaneLevelCritical && 1 <= tmp) && 1 <= \result) && \result == 0) && 1 <= pumpRunning) && tmp == 0) && 1 <= tmp___0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 352]: Loop Invariant Derived loop invariant: ((((((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) && ((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && systemActive == 1) && pumpRunning == 0)) || !(\old(waterLevel) <= 1))) && (((((!(\old(waterLevel) <= 2) || (waterLevel == \old(waterLevel) && 1 <= pumpRunning)) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || (((((waterLevel <= 1 && waterLevel == \old(waterLevel)) && methaneLevelCritical == 0) && pumpRunning == \old(pumpRunning)) && systemActive == 1) && pumpRunning == 0))) && (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(methaneLevelCritical == 0)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: ((((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1)) || ((((tmp == 0 && waterLevel <= 1) && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) && ((((!(\old(waterLevel) == 1) || !(1 == systemActive)) || \result == 1) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((((((((waterLevel <= \old(waterLevel) && tmp == 0) && waterLevel <= 1) && \result <= 1) && pumpRunning == \old(pumpRunning)) || !(\old(waterLevel) <= 2)) || ((((waterLevel <= \old(waterLevel) && tmp == 0) && waterLevel <= 1) && \result <= 1) && pumpRunning == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || ((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning)) || !(methaneLevelCritical == 0)) || ((((tmp == 0 && waterLevel <= 1) && \result <= 1) && waterLevel == \old(waterLevel)) && pumpRunning == 0)) - InvariantResult [Line: 421]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) || !(\old(waterLevel) <= 1)) && ((((!(\old(waterLevel) <= 2) || (((tmp == 0 && waterLevel == \old(waterLevel)) && 1 <= pumpRunning) && !(0 == \result))) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && methaneLevelCritical == 0) && systemActive == 1) && pumpRunning == 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(1 <= \old(pumpRunning)))) && (((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0))) && ((((!(\old(waterLevel) <= 2) || !(1 == systemActive)) || ((waterLevel <= \old(waterLevel) && waterLevel <= 1) && pumpRunning == \old(pumpRunning))) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning))) - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: (((((((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(\old(pumpRunning) == 0)) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == systemActive)) || !(1 <= \old(pumpRunning)))) && ((((!(1 == systemActive) || !(methaneLevelCritical == systemActive)) || !(waterLevel <= 2)) || ((((((1 <= tmp && 1 <= \result) && !(tmp == 0)) && \result == 0) && tmp == 0) && 1 <= tmp___0) && pumpRunning == 0)) || !(\old(pumpRunning) == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(1 <= \old(pumpRunning)))) && ((((((((((tmp == methaneLevelCritical && 1 <= tmp) && 1 <= \result) && \result == 0) && 1 <= pumpRunning) && tmp == 0) && 1 <= tmp___0) || !(1 == systemActive)) || !(waterLevel <= 2)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0))) && (((!(waterLevel <= 1) || !(1 == systemActive)) || !(\old(pumpRunning) == 0)) || !(methaneLevelCritical == 0)) RESULT: Ultimate proved your program to be correct! [2021-12-17 15:08:32,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE