./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product56.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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:25:24,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:25:24,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:25:24,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:25:24,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:25:24,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:25:24,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:25:24,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:25:24,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:25:24,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:25:24,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:25:24,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:25:24,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:25:24,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:25:24,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:25:24,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:25:24,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:25:24,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:25:24,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:25:24,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:25:24,167 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:25:24,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:25:24,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:25:24,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:25:24,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:25:24,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:25:24,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:25:24,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:25:24,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:25:24,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:25:24,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:25:24,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:25:24,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:25:24,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:25:24,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:25:24,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:25:24,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:25:24,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:25:24,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:25:24,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:25:24,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:25:24,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:25:24,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:25:24,214 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:25:24,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:25:24,214 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:25:24,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:25:24,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:25:24,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:25:24,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:25:24,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:25:24,216 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:25:24,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:25:24,217 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:25:24,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:25:24,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:25:24,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:25:24,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:25:24,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:25:24,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:25:24,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:25:24,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:25:24,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:24,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:25:24,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:25:24,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:25:24,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:25:24,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:25:24,222 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:25:24,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:25:24,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:25:24,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2022-07-19 17:25:24,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:25:24,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:25:24,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:25:24,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:25:24,445 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:25:24,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-07-19 17:25:24,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aac30e37/54def8054e8d45cbb9b5b1fee6c7d2db/FLAGc3f7ff958 [2022-07-19 17:25:24,897 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:25:24,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2022-07-19 17:25:24,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aac30e37/54def8054e8d45cbb9b5b1fee6c7d2db/FLAGc3f7ff958 [2022-07-19 17:25:25,285 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0aac30e37/54def8054e8d45cbb9b5b1fee6c7d2db [2022-07-19 17:25:25,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:25:25,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:25:25,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:25,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:25:25,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:25:25,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d6f16eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25, skipping insertion in model container [2022-07-19 17:25:25,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:25:25,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:25:25,585 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_spec4_product56.cil.c[17338,17351] [2022-07-19 17:25:25,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:25,624 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:25:25,694 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_spec4_product56.cil.c[17338,17351] [2022-07-19 17:25:25,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:25,733 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:25:25,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25 WrapperNode [2022-07-19 17:25:25,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:25,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:25,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:25:25,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:25:25,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,786 INFO L137 Inliner]: procedures = 58, calls = 161, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 289 [2022-07-19 17:25:25,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:25,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:25:25,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:25:25,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:25:25,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:25:25,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:25:25,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:25:25,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:25:25,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (1/1) ... [2022-07-19 17:25:25,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:25,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:25,865 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) [2022-07-19 17:25:25,867 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 [2022-07-19 17:25:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:25:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:25:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:25:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:25:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:25:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:25:25,893 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:25:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:25:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:25:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-19 17:25:25,894 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-07-19 17:25:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:25:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:25:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:25:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:25:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:25:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:25:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:25:25,957 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:25:25,959 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:25:26,243 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:25:26,250 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:25:26,250 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:25:26,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:26 BoogieIcfgContainer [2022-07-19 17:25:26,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:25:26,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:25:26,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:25:26,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:25:26,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:25:25" (1/3) ... [2022-07-19 17:25:26,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18979f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:26, skipping insertion in model container [2022-07-19 17:25:26,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:25" (2/3) ... [2022-07-19 17:25:26,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18979f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:26, skipping insertion in model container [2022-07-19 17:25:26,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:26" (3/3) ... [2022-07-19 17:25:26,268 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2022-07-19 17:25:26,285 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:25:26,285 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:25:26,327 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:25:26,333 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@455982ad, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f9b0102 [2022-07-19 17:25:26,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:25:26,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-19 17:25:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 17:25:26,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:26,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:26,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:26,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash 975776348, now seen corresponding path program 1 times [2022-07-19 17:25:26,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:26,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561337188] [2022-07-19 17:25:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:26,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:26,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:26,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561337188] [2022-07-19 17:25:26,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561337188] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:26,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:26,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:26,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872217244] [2022-07-19 17:25:26,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:26,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:25:26,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:25:26,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:25:26,635 INFO L87 Difference]: Start difference. First operand has 100 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 86 states have internal predecessors, (104), 15 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:26,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:26,686 INFO L93 Difference]: Finished difference Result 192 states and 263 transitions. [2022-07-19 17:25:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:25:26,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-19 17:25:26,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:26,701 INFO L225 Difference]: With dead ends: 192 [2022-07-19 17:25:26,701 INFO L226 Difference]: Without dead ends: 91 [2022-07-19 17:25:26,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:25:26,708 INFO L413 NwaCegarLoop]: 128 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, 128 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 [2022-07-19 17:25:26,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:26,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-19 17:25:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-19 17:25:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 68 states have (on average 1.3235294117647058) internal successors, (90), 78 states have internal predecessors, (90), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-07-19 17:25:26,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2022-07-19 17:25:26,745 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 19 [2022-07-19 17:25:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:26,745 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2022-07-19 17:25:26,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2022-07-19 17:25:26,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 17:25:26,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:26,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:26,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:25:26,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1543378342, now seen corresponding path program 1 times [2022-07-19 17:25:26,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:26,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283780079] [2022-07-19 17:25:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:26,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:26,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283780079] [2022-07-19 17:25:26,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283780079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:26,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:26,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:25:26,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229095918] [2022-07-19 17:25:26,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:26,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:26,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:26,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:26,809 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:26,823 INFO L93 Difference]: Finished difference Result 143 states and 187 transitions. [2022-07-19 17:25:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-19 17:25:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:26,826 INFO L225 Difference]: With dead ends: 143 [2022-07-19 17:25:26,826 INFO L226 Difference]: Without dead ends: 82 [2022-07-19 17:25:26,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:26,828 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 190 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 [2022-07-19 17:25:26,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:26,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-07-19 17:25:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-07-19 17:25:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 72 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-19 17:25:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2022-07-19 17:25:26,839 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 20 [2022-07-19 17:25:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:26,839 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2022-07-19 17:25:26,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2022-07-19 17:25:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:25:26,841 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:26,841 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:26,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:25:26,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1300509367, now seen corresponding path program 1 times [2022-07-19 17:25:26,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:26,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237265650] [2022-07-19 17:25:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:26,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:26,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237265650] [2022-07-19 17:25:26,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237265650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:26,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:26,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:25:26,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299025743] [2022-07-19 17:25:26,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:26,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:25:26,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:25:26,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:25:26,936 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:27,044 INFO L93 Difference]: Finished difference Result 195 states and 258 transitions. [2022-07-19 17:25:27,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:25:27,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-19 17:25:27,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:27,048 INFO L225 Difference]: With dead ends: 195 [2022-07-19 17:25:27,049 INFO L226 Difference]: Without dead ends: 120 [2022-07-19 17:25:27,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:27,053 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 170 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:27,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 341 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:27,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-19 17:25:27,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-07-19 17:25:27,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 89 states have (on average 1.3595505617977528) internal successors, (121), 102 states have internal predecessors, (121), 16 states have call successors, (16), 11 states have call predecessors, (16), 11 states have return successors, (17), 10 states have call predecessors, (17), 16 states have call successors, (17) [2022-07-19 17:25:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 154 transitions. [2022-07-19 17:25:27,068 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 154 transitions. Word has length 25 [2022-07-19 17:25:27,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:27,069 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 154 transitions. [2022-07-19 17:25:27,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 154 transitions. [2022-07-19 17:25:27,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 17:25:27,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:27,070 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:25:27,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:27,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1710585576, now seen corresponding path program 1 times [2022-07-19 17:25:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750111225] [2022-07-19 17:25:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:27,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:27,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:27,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750111225] [2022-07-19 17:25:27,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750111225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:27,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:27,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:25:27,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208848169] [2022-07-19 17:25:27,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:27,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:25:27,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:27,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:25:27,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:25:27,130 INFO L87 Difference]: Start difference. First operand 117 states and 154 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:27,181 INFO L93 Difference]: Finished difference Result 325 states and 449 transitions. [2022-07-19 17:25:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:25:27,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-07-19 17:25:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:27,184 INFO L225 Difference]: With dead ends: 325 [2022-07-19 17:25:27,184 INFO L226 Difference]: Without dead ends: 215 [2022-07-19 17:25:27,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:27,186 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 78 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:27,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 430 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-07-19 17:25:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2022-07-19 17:25:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 162 states have (on average 1.3395061728395061) internal successors, (217), 185 states have internal predecessors, (217), 32 states have call successors, (32), 22 states have call predecessors, (32), 20 states have return successors, (37), 18 states have call predecessors, (37), 32 states have call successors, (37) [2022-07-19 17:25:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 286 transitions. [2022-07-19 17:25:27,207 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 286 transitions. Word has length 28 [2022-07-19 17:25:27,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:27,208 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 286 transitions. [2022-07-19 17:25:27,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 286 transitions. [2022-07-19 17:25:27,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 17:25:27,210 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:27,211 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:27,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:25:27,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:27,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:27,212 INFO L85 PathProgramCache]: Analyzing trace with hash 298834221, now seen corresponding path program 1 times [2022-07-19 17:25:27,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:27,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875824090] [2022-07-19 17:25:27,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:27,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:27,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:27,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875824090] [2022-07-19 17:25:27,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875824090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:27,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:27,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:27,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918822253] [2022-07-19 17:25:27,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:27,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:27,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:27,256 INFO L87 Difference]: Start difference. First operand 215 states and 286 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:27,289 INFO L93 Difference]: Finished difference Result 473 states and 648 transitions. [2022-07-19 17:25:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-07-19 17:25:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:27,292 INFO L225 Difference]: With dead ends: 473 [2022-07-19 17:25:27,292 INFO L226 Difference]: Without dead ends: 265 [2022-07-19 17:25:27,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:27,294 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 59 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:27,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 179 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-19 17:25:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 261. [2022-07-19 17:25:27,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 201 states have (on average 1.2835820895522387) internal successors, (258), 216 states have internal predecessors, (258), 31 states have call successors, (31), 29 states have call predecessors, (31), 28 states have return successors, (47), 28 states have call predecessors, (47), 31 states have call successors, (47) [2022-07-19 17:25:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 336 transitions. [2022-07-19 17:25:27,318 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 336 transitions. Word has length 30 [2022-07-19 17:25:27,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:27,318 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 336 transitions. [2022-07-19 17:25:27,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:27,319 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 336 transitions. [2022-07-19 17:25:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 17:25:27,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:27,320 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:27,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:25:27,321 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:27,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:27,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1545723250, now seen corresponding path program 1 times [2022-07-19 17:25:27,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:27,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960086127] [2022-07-19 17:25:27,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:27,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:27,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:27,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960086127] [2022-07-19 17:25:27,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960086127] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:27,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:27,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:25:27,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402636750] [2022-07-19 17:25:27,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:27,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:27,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:27,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:27,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:25:27,399 INFO L87 Difference]: Start difference. First operand 261 states and 336 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 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) [2022-07-19 17:25:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:27,663 INFO L93 Difference]: Finished difference Result 313 states and 403 transitions. [2022-07-19 17:25:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 17:25:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 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 32 [2022-07-19 17:25:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:27,666 INFO L225 Difference]: With dead ends: 313 [2022-07-19 17:25:27,666 INFO L226 Difference]: Without dead ends: 311 [2022-07-19 17:25:27,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:27,672 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 141 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:27,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 354 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-07-19 17:25:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 294. [2022-07-19 17:25:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 226 states have (on average 1.2654867256637168) internal successors, (286), 247 states have internal predecessors, (286), 34 states have call successors, (34), 29 states have call predecessors, (34), 33 states have return successors, (57), 30 states have call predecessors, (57), 34 states have call successors, (57) [2022-07-19 17:25:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 377 transitions. [2022-07-19 17:25:27,715 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 377 transitions. Word has length 32 [2022-07-19 17:25:27,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:27,717 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 377 transitions. [2022-07-19 17:25:27,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 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) [2022-07-19 17:25:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 377 transitions. [2022-07-19 17:25:27,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 17:25:27,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:27,721 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:27,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:25:27,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash -766960693, now seen corresponding path program 1 times [2022-07-19 17:25:27,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:27,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434173414] [2022-07-19 17:25:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:27,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:25:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:27,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:27,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434173414] [2022-07-19 17:25:27,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434173414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:27,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:27,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:27,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122844770] [2022-07-19 17:25:27,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:27,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:27,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:27,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:27,845 INFO L87 Difference]: Start difference. First operand 294 states and 377 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:28,090 INFO L93 Difference]: Finished difference Result 641 states and 835 transitions. [2022-07-19 17:25:28,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:25:28,091 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), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-19 17:25:28,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:28,094 INFO L225 Difference]: With dead ends: 641 [2022-07-19 17:25:28,095 INFO L226 Difference]: Without dead ends: 354 [2022-07-19 17:25:28,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:28,099 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 145 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:28,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 351 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:28,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-07-19 17:25:28,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 324. [2022-07-19 17:25:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 251 states have (on average 1.250996015936255) internal successors, (314), 272 states have internal predecessors, (314), 34 states have call successors, (34), 29 states have call predecessors, (34), 38 states have return successors, (64), 34 states have call predecessors, (64), 34 states have call successors, (64) [2022-07-19 17:25:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 412 transitions. [2022-07-19 17:25:28,122 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 412 transitions. Word has length 48 [2022-07-19 17:25:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:28,122 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 412 transitions. [2022-07-19 17:25:28,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 412 transitions. [2022-07-19 17:25:28,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-07-19 17:25:28,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:28,124 INFO L195 NwaCegarLoop]: 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, 1] [2022-07-19 17:25:28,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:25:28,124 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:28,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:28,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1932063404, now seen corresponding path program 1 times [2022-07-19 17:25:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:28,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761330596] [2022-07-19 17:25:28,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:28,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 17:25:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:28,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761330596] [2022-07-19 17:25:28,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761330596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:28,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:28,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:25:28,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488223880] [2022-07-19 17:25:28,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:28,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:25:28,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:28,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:25:28,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:25:28,221 INFO L87 Difference]: Start difference. First operand 324 states and 412 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 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) [2022-07-19 17:25:28,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:28,393 INFO L93 Difference]: Finished difference Result 669 states and 847 transitions. [2022-07-19 17:25:28,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:25:28,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 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 51 [2022-07-19 17:25:28,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:28,396 INFO L225 Difference]: With dead ends: 669 [2022-07-19 17:25:28,396 INFO L226 Difference]: Without dead ends: 352 [2022-07-19 17:25:28,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:28,398 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 167 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:28,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 290 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:28,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2022-07-19 17:25:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 324. [2022-07-19 17:25:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 251 states have (on average 1.2430278884462151) internal successors, (312), 272 states have internal predecessors, (312), 34 states have call successors, (34), 29 states have call predecessors, (34), 38 states have return successors, (60), 34 states have call predecessors, (60), 34 states have call successors, (60) [2022-07-19 17:25:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 406 transitions. [2022-07-19 17:25:28,416 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 406 transitions. Word has length 51 [2022-07-19 17:25:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:28,416 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 406 transitions. [2022-07-19 17:25:28,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 3 states have internal predecessors, (44), 3 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) [2022-07-19 17:25:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 406 transitions. [2022-07-19 17:25:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 17:25:28,418 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:28,418 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:25:28,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:28,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1788029047, now seen corresponding path program 1 times [2022-07-19 17:25:28,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:28,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948770456] [2022-07-19 17:25:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:28,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:25:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:28,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:28,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948770456] [2022-07-19 17:25:28,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948770456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:28,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:28,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 17:25:28,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938688360] [2022-07-19 17:25:28,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:28,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 17:25:28,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:28,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 17:25:28,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:28,539 INFO L87 Difference]: Start difference. First operand 324 states and 406 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:28,830 INFO L93 Difference]: Finished difference Result 637 states and 817 transitions. [2022-07-19 17:25:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 17:25:28,831 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), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-19 17:25:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:28,833 INFO L225 Difference]: With dead ends: 637 [2022-07-19 17:25:28,833 INFO L226 Difference]: Without dead ends: 320 [2022-07-19 17:25:28,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:25:28,835 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 203 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:28,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 349 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-07-19 17:25:28,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 266. [2022-07-19 17:25:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 223 states have internal predecessors, (255), 29 states have call successors, (29), 25 states have call predecessors, (29), 30 states have return successors, (46), 27 states have call predecessors, (46), 29 states have call successors, (46) [2022-07-19 17:25:28,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 330 transitions. [2022-07-19 17:25:28,850 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 330 transitions. Word has length 48 [2022-07-19 17:25:28,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:28,850 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 330 transitions. [2022-07-19 17:25:28,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:28,850 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 330 transitions. [2022-07-19 17:25:28,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-19 17:25:28,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:28,851 INFO L195 NwaCegarLoop]: 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] [2022-07-19 17:25:28,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:25:28,852 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:28,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash 512793543, now seen corresponding path program 1 times [2022-07-19 17:25:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:28,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142528021] [2022-07-19 17:25:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:28,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:25:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:28,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:28,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142528021] [2022-07-19 17:25:28,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142528021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:28,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:28,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:28,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032454811] [2022-07-19 17:25:28,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:28,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:28,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:28,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:28,916 INFO L87 Difference]: Start difference. First operand 266 states and 330 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:29,327 INFO L93 Difference]: Finished difference Result 591 states and 775 transitions. [2022-07-19 17:25:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 17:25:29,331 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), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-07-19 17:25:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:29,334 INFO L225 Difference]: With dead ends: 591 [2022-07-19 17:25:29,334 INFO L226 Difference]: Without dead ends: 405 [2022-07-19 17:25:29,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-07-19 17:25:29,335 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 217 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:29,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 478 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:25:29,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-07-19 17:25:29,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 394. [2022-07-19 17:25:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 306 states have (on average 1.2189542483660132) internal successors, (373), 328 states have internal predecessors, (373), 43 states have call successors, (43), 38 states have call predecessors, (43), 44 states have return successors, (81), 44 states have call predecessors, (81), 43 states have call successors, (81) [2022-07-19 17:25:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 497 transitions. [2022-07-19 17:25:29,355 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 497 transitions. Word has length 48 [2022-07-19 17:25:29,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:29,355 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 497 transitions. [2022-07-19 17:25:29,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:25:29,355 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 497 transitions. [2022-07-19 17:25:29,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-19 17:25:29,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:29,357 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:29,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 17:25:29,358 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1953453445, now seen corresponding path program 1 times [2022-07-19 17:25:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:29,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593340343] [2022-07-19 17:25:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:29,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:25:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 17:25:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 17:25:29,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:29,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593340343] [2022-07-19 17:25:29,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593340343] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:29,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917479647] [2022-07-19 17:25:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:29,470 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) [2022-07-19 17:25:29,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:25:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:29,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:25:29,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:29,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:25:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-19 17:25:29,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917479647] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:25:29,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:25:29,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-07-19 17:25:29,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130699399] [2022-07-19 17:25:29,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:25:29,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 17:25:29,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:29,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 17:25:29,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:25:29,926 INFO L87 Difference]: Start difference. First operand 394 states and 497 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 17:25:30,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:30,644 INFO L93 Difference]: Finished difference Result 938 states and 1245 transitions. [2022-07-19 17:25:30,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-19 17:25:30,647 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2022-07-19 17:25:30,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:30,650 INFO L225 Difference]: With dead ends: 938 [2022-07-19 17:25:30,650 INFO L226 Difference]: Without dead ends: 624 [2022-07-19 17:25:30,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 198 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2022-07-19 17:25:30,652 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 368 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:30,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 564 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 17:25:30,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2022-07-19 17:25:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 540. [2022-07-19 17:25:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 415 states have (on average 1.2265060240963856) internal successors, (509), 447 states have internal predecessors, (509), 62 states have call successors, (62), 54 states have call predecessors, (62), 62 states have return successors, (124), 59 states have call predecessors, (124), 62 states have call successors, (124) [2022-07-19 17:25:30,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 695 transitions. [2022-07-19 17:25:30,683 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 695 transitions. Word has length 91 [2022-07-19 17:25:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:30,684 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 695 transitions. [2022-07-19 17:25:30,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-19 17:25:30,684 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 695 transitions. [2022-07-19 17:25:30,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:25:30,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:30,691 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:30,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:30,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-19 17:25:30,903 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:30,904 INFO L85 PathProgramCache]: Analyzing trace with hash -91360441, now seen corresponding path program 2 times [2022-07-19 17:25:30,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:30,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996503713] [2022-07-19 17:25:30,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:30,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:30,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:30,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:25:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:30,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:30,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:25:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:25:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:31,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:25:31,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:31,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996503713] [2022-07-19 17:25:31,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996503713] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:31,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119064750] [2022-07-19 17:25:31,090 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 17:25:31,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:31,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:31,092 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) [2022-07-19 17:25:31,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:25:31,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 17:25:31,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 17:25:31,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 17:25:31,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-19 17:25:31,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:25:31,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119064750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:31,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:25:31,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 15 [2022-07-19 17:25:31,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866487333] [2022-07-19 17:25:31,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:31,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:31,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:31,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:31,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:25:31,342 INFO L87 Difference]: Start difference. First operand 540 states and 695 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-19 17:25:31,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:31,620 INFO L93 Difference]: Finished difference Result 1431 states and 1922 transitions. [2022-07-19 17:25:31,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 17:25:31,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 134 [2022-07-19 17:25:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:31,626 INFO L225 Difference]: With dead ends: 1431 [2022-07-19 17:25:31,626 INFO L226 Difference]: Without dead ends: 970 [2022-07-19 17:25:31,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2022-07-19 17:25:31,629 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 236 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:31,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 630 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:31,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2022-07-19 17:25:31,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 947. [2022-07-19 17:25:31,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 729 states have (on average 1.2263374485596708) internal successors, (894), 776 states have internal predecessors, (894), 106 states have call successors, (106), 95 states have call predecessors, (106), 111 states have return successors, (202), 108 states have call predecessors, (202), 106 states have call successors, (202) [2022-07-19 17:25:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1202 transitions. [2022-07-19 17:25:31,685 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1202 transitions. Word has length 134 [2022-07-19 17:25:31,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:31,686 INFO L495 AbstractCegarLoop]: Abstraction has 947 states and 1202 transitions. [2022-07-19 17:25:31,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-19 17:25:31,686 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1202 transitions. [2022-07-19 17:25:31,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-19 17:25:31,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:31,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:31,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:31,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-19 17:25:31,900 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash -145753339, now seen corresponding path program 1 times [2022-07-19 17:25:31,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:31,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304247860] [2022-07-19 17:25:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:31,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:25:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-19 17:25:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 17:25:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-07-19 17:25:31,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:31,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304247860] [2022-07-19 17:25:31,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304247860] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:31,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113417044] [2022-07-19 17:25:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:31,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:31,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:31,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:25:32,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:25:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:25:32,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-19 17:25:32,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:25:32,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113417044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:32,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:25:32,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2022-07-19 17:25:32,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448414532] [2022-07-19 17:25:32,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:32,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:25:32,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:32,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:25:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:32,130 INFO L87 Difference]: Start difference. First operand 947 states and 1202 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-19 17:25:32,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:32,176 INFO L93 Difference]: Finished difference Result 1310 states and 1649 transitions. [2022-07-19 17:25:32,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:25:32,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2022-07-19 17:25:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:32,177 INFO L225 Difference]: With dead ends: 1310 [2022-07-19 17:25:32,177 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:25:32,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:25:32,180 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:32,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 403 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:25:32,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:25:32,181 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) [2022-07-19 17:25:32,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:25:32,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-07-19 17:25:32,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:32,182 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:25:32,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-19 17:25:32,182 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:25:32,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:25:32,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:25:32,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:32,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:32,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:25:34,663 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 183 190) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 183 190) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 183 190) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 90 96) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 90 96) the Hoare annotation is: true [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point L913-1(lines 909 920) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 909 920) the Hoare annotation is: true [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 909 920) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L902 garLoopResultBuilder]: At program point L801(lines 776 805) the Hoare annotation is: true [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 776 805) no Hoare annotation was computed. [2022-07-19 17:25:34,663 INFO L899 garLoopResultBuilder]: For program point L797(line 797) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 776 805) the Hoare annotation is: true [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 794) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L902 garLoopResultBuilder]: At program point L790-1(lines 790 794) the Hoare annotation is: true [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point L787(line 787) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L902 garLoopResultBuilder]: At program point L786-2(lines 786 800) the Hoare annotation is: true [2022-07-19 17:25:34,664 INFO L902 garLoopResultBuilder]: At program point L782(line 782) the Hoare annotation is: true [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point L782-1(line 782) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point L77-1(lines 77 83) no Hoare annotation was computed. [2022-07-19 17:25:34,664 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 66 89) no Hoare annotation was computed. [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L164(line 164) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L160(line 160) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L879(lines 874 881) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L169(line 169) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse0 .cse2 (not .cse3)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L169-1(lines 150 174) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 (and .cse4 (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse4 .cse5) .cse1 (and .cse3 .cse5))))) [2022-07-19 17:25:34,665 INFO L895 garLoopResultBuilder]: At program point L198(lines 191 201) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,665 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 69 88) no Hoare annotation was computed. [2022-07-19 17:25:34,666 INFO L895 garLoopResultBuilder]: At program point L958(lines 953 961) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= 0 ~systemActive~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 .cse3 .cse4) (not .cse5) .cse6) (or (and (<= 2 ~waterLevel~0) .cse7) (and .cse2 (<= 1 ~waterLevel~0) .cse3) .cse5 .cse6) (or .cse0 .cse5 (and .cse4 .cse7) .cse6) (or .cse0 .cse1 (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-07-19 17:25:34,667 INFO L895 garLoopResultBuilder]: At program point L207(lines 202 210) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,667 INFO L895 garLoopResultBuilder]: At program point L926(lines 921 929) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,667 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 166) no Hoare annotation was computed. [2022-07-19 17:25:34,667 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 171) no Hoare annotation was computed. [2022-07-19 17:25:34,667 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 893) no Hoare annotation was computed. [2022-07-19 17:25:34,667 INFO L899 garLoopResultBuilder]: For program point L761(lines 761 767) no Hoare annotation was computed. [2022-07-19 17:25:34,667 INFO L895 garLoopResultBuilder]: At program point L889-2(lines 885 896) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2022-07-19 17:25:34,668 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 770) no Hoare annotation was computed. [2022-07-19 17:25:34,668 INFO L895 garLoopResultBuilder]: At program point L757-1(lines 749 773) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0)) (.cse9 (<= 2 ~waterLevel~0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse11 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|))) (let ((.cse1 (and .cse9 .cse12 .cse10 .cse11)) (.cse4 (and .cse6 .cse12)) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1|)) (.cse8 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~9#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 .cse4 .cse5 .cse1) (or .cse0 .cse4 .cse5 (not .cse2)) (or (and .cse6 .cse7 (<= 1 ~waterLevel~0) .cse8) (and .cse9 .cse10 .cse11) .cse2 .cse3) (or .cse0 (and .cse7 .cse8) .cse3)))) [2022-07-19 17:25:34,668 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 66 89) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 .cse2) .cse3) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (= 0 ~systemActive~0) .cse3))) [2022-07-19 17:25:34,668 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 66 89) no Hoare annotation was computed. [2022-07-19 17:25:34,668 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2022-07-19 17:25:34,669 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-19 17:25:34,669 INFO L895 garLoopResultBuilder]: At program point L738(lines 687 739) the Hoare annotation is: false [2022-07-19 17:25:34,669 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:25:34,669 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:25:34,669 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:25:34,669 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-07-19 17:25:34,669 INFO L895 garLoopResultBuilder]: At program point L726-2(lines 718 733) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-19 17:25:34,669 INFO L899 garLoopResultBuilder]: For program point L689(lines 688 737) no Hoare annotation was computed. [2022-07-19 17:25:34,670 INFO L895 garLoopResultBuilder]: At program point L305(lines 300 307) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2022-07-19 17:25:34,670 INFO L899 garLoopResultBuilder]: For program point L718(lines 718 733) no Hoare annotation was computed. [2022-07-19 17:25:34,670 INFO L895 garLoopResultBuilder]: At program point L297(lines 285 299) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4))) [2022-07-19 17:25:34,670 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-19 17:25:34,670 INFO L895 garLoopResultBuilder]: At program point L834(lines 830 836) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:25:34,670 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 295) no Hoare annotation was computed. [2022-07-19 17:25:34,671 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:25:34,671 INFO L899 garLoopResultBuilder]: For program point L289-1(lines 289 295) no Hoare annotation was computed. [2022-07-19 17:25:34,671 INFO L895 garLoopResultBuilder]: At program point L735(lines 688 737) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= |ULTIMATE.start_main_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 .cse4 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 .cse3 (= ~waterLevel~0 1) .cse4))) [2022-07-19 17:25:34,671 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 704) no Hoare annotation was computed. [2022-07-19 17:25:34,671 INFO L899 garLoopResultBuilder]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2022-07-19 17:25:34,671 INFO L895 garLoopResultBuilder]: At program point L1016(lines 1011 1019) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:25:34,671 INFO L899 garLoopResultBuilder]: For program point L690(lines 690 694) no Hoare annotation was computed. [2022-07-19 17:25:34,672 INFO L895 garLoopResultBuilder]: At program point L1008(lines 1004 1010) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:25:34,672 INFO L899 garLoopResultBuilder]: For program point L860(lines 860 867) no Hoare annotation was computed. [2022-07-19 17:25:34,672 INFO L899 garLoopResultBuilder]: For program point L860-2(lines 860 867) no Hoare annotation was computed. [2022-07-19 17:25:34,672 INFO L902 garLoopResultBuilder]: At program point L844(lines 837 846) the Hoare annotation is: true [2022-07-19 17:25:34,672 INFO L895 garLoopResultBuilder]: At program point L1001(lines 997 1003) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:25:34,672 INFO L902 garLoopResultBuilder]: At program point L741(lines 678 745) the Hoare annotation is: true [2022-07-19 17:25:34,672 INFO L902 garLoopResultBuilder]: At program point L869(lines 850 872) the Hoare annotation is: true [2022-07-19 17:25:34,672 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 714) no Hoare annotation was computed. [2022-07-19 17:25:34,673 INFO L899 garLoopResultBuilder]: For program point L708-1(lines 708 714) no Hoare annotation was computed. [2022-07-19 17:25:34,673 INFO L895 garLoopResultBuilder]: At program point L291(line 291) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-07-19 17:25:34,673 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 98 122) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,673 INFO L899 garLoopResultBuilder]: For program point L256(lines 256 260) no Hoare annotation was computed. [2022-07-19 17:25:34,673 INFO L899 garLoopResultBuilder]: For program point L256-2(lines 256 260) no Hoare annotation was computed. [2022-07-19 17:25:34,673 INFO L895 garLoopResultBuilder]: At program point L180(lines 175 182) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,673 INFO L895 garLoopResultBuilder]: At program point L112(line 112) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0 (and (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse1) (or .cse0 (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse1))) [2022-07-19 17:25:34,674 INFO L895 garLoopResultBuilder]: At program point L971(lines 962 975) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0))) [2022-07-19 17:25:34,674 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 114) no Hoare annotation was computed. [2022-07-19 17:25:34,674 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 119) no Hoare annotation was computed. [2022-07-19 17:25:34,674 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 98 122) no Hoare annotation was computed. [2022-07-19 17:25:34,674 INFO L895 garLoopResultBuilder]: At program point L117(line 117) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,674 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 98 122) no Hoare annotation was computed. [2022-07-19 17:25:34,674 INFO L899 garLoopResultBuilder]: For program point L966(lines 966 972) no Hoare annotation was computed. [2022-07-19 17:25:34,675 INFO L895 garLoopResultBuilder]: At program point L262(lines 247 265) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0)) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0) (not (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~3#1| 0))) .cse2))) [2022-07-19 17:25:34,675 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 897 908) no Hoare annotation was computed. [2022-07-19 17:25:34,675 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2022-07-19 17:25:34,675 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|)) .cse0) (or .cse0 (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-19 17:25:34,675 INFO L899 garLoopResultBuilder]: For program point L128(lines 128 145) no Hoare annotation was computed. [2022-07-19 17:25:34,675 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 124 148) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,676 INFO L895 garLoopResultBuilder]: At program point L281(lines 266 284) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:34,676 INFO L895 garLoopResultBuilder]: At program point L981(lines 976 984) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:34,676 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 279) no Hoare annotation was computed. [2022-07-19 17:25:34,676 INFO L899 garLoopResultBuilder]: For program point L275-2(lines 275 279) no Hoare annotation was computed. [2022-07-19 17:25:34,676 INFO L895 garLoopResultBuilder]: At program point L143(line 143) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,676 INFO L899 garLoopResultBuilder]: For program point L143-1(lines 124 148) no Hoare annotation was computed. [2022-07-19 17:25:34,676 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 124 148) no Hoare annotation was computed. [2022-07-19 17:25:34,676 INFO L895 garLoopResultBuilder]: At program point L138(line 138) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-07-19 17:25:34,677 INFO L895 garLoopResultBuilder]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~1#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~4#1| 0) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~1#1|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:34,677 INFO L899 garLoopResultBuilder]: For program point L132(lines 132 140) no Hoare annotation was computed. [2022-07-19 17:25:34,680 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:34,683 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:25:34,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:25:34 BoogieIcfgContainer [2022-07-19 17:25:34,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:25:34,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:25:34,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:25:34,737 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:25:34,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:26" (3/4) ... [2022-07-19 17:25:34,740 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:25:34,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:25:34,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:25:34,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:25:34,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:25:34,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:25:34,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:34,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:25:34,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-07-19 17:25:34,759 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-07-19 17:25:34,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:25:34,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:25:34,761 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:25:34,762 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:25:34,762 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:25:34,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:25:34,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-07-19 17:25:34,784 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-07-19 17:25:34,785 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) || ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive))) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == 1) && tmp == 1) [2022-07-19 17:25:34,786 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,787 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2022-07-19 17:25:34,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) [2022-07-19 17:25:34,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-07-19 17:25:34,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) && tmp == 1) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && 0 == systemActive) && tmp == 1) [2022-07-19 17:25:34,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || ((2 <= waterLevel && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (1 <= tmp && 1 <= \result)) || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,789 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-19 17:25:34,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive [2022-07-19 17:25:34,790 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2022-07-19 17:25:34,791 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2022-07-19 17:25:34,794 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && !(\result == 0)) && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || 0 == systemActive) [2022-07-19 17:25:34,794 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive [2022-07-19 17:25:34,833 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:25:34,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:25:34,834 INFO L158 Benchmark]: Toolchain (without parser) took 9543.80ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 105.7MB in the beginning and 70.3MB in the end (delta: 35.4MB). Peak memory consumption was 103.8MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,834 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 73.4MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:25:34,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.58ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 107.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.52ms. Allocated memory is still 140.5MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,835 INFO L158 Benchmark]: Boogie Preprocessor took 43.11ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,835 INFO L158 Benchmark]: RCFGBuilder took 421.78ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 85.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,835 INFO L158 Benchmark]: TraceAbstraction took 8481.75ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 85.8MB in the beginning and 76.6MB in the end (delta: 9.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,836 INFO L158 Benchmark]: Witness Printer took 96.87ms. Allocated memory is still 209.7MB. Free memory was 76.6MB in the beginning and 70.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:25:34,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 73.4MB. Free memory was 44.3MB in the beginning and 44.3MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.58ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 107.5MB in the end (delta: -2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.52ms. Allocated memory is still 140.5MB. Free memory was 107.5MB in the beginning and 105.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.11ms. Allocated memory is still 140.5MB. Free memory was 105.4MB in the beginning and 103.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.78ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 85.8MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8481.75ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 85.8MB in the beginning and 76.6MB in the end (delta: 9.2MB). Peak memory consumption was 97.8MB. Max. memory is 16.1GB. * Witness Printer took 96.87ms. Allocated memory is still 209.7MB. Free memory was 76.6MB in the beginning and 70.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 878]: 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, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1831 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1810 mSDsluCounter, 4687 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3102 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2220 IncrementalHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 1585 mSDtfsCounter, 2220 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 692 GetRequests, 562 SyntacticMatches, 10 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=947occurred in iteration=12, InterpolantAutomatonStates: 116, 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, 13 MinimizatonAttempts, 254 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 1824 PreInvPairs, 1961 NumberOfFragments, 1228 HoareAnnotationTreeSize, 1824 FomulaSimplifications, 2237 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 48 FomulaSimplificationsInter, 8974 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1141 ConstructedInterpolants, 0 QuantifiedInterpolants, 1996 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1603 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 17 InterpolantComputations, 12 PerfectInterpolantSequences, 393/447 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: 976]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 962]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && !(\result == 0))) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive - InvariantResult [Line: 953]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || 0 == systemActive) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 1011]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 830]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 921]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 850]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && 1 <= tmp___0) && tmp == 0) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || ((2 <= waterLevel && 2 <= \result) && 2 <= tmp)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || (1 <= tmp && 1 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 247]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && !(\result == 0)) && \result == 0) && tmp___0 == 0) && !(tmp == 0))) || 0 == systemActive) - InvariantResult [Line: 687]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) || ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive))) || ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && waterLevel == 1) && tmp == 1) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive - InvariantResult [Line: 1004]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: ((((\result == 1 && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 997]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 0 == systemActive) && waterLevel == 1) && tmp == 1) || (((((pumpRunning == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && 0 == systemActive) && tmp == 1) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:25:34,901 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