./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_product19.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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:59:49,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:59:49,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:59:49,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:59:49,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:59:49,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:59:49,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:59:49,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:59:49,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:59:49,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:59:49,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:59:49,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:59:49,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:59:49,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:59:49,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:59:49,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:59:49,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:59:49,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:59:49,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:59:49,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:59:49,219 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:59:49,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:59:49,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:59:49,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:59:49,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:59:49,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:59:49,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:59:49,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:59:49,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:59:49,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:59:49,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:59:49,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:59:49,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:59:49,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:59:49,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:59:49,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:59:49,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:59:49,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:59:49,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:59:49,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:59:49,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:59:49,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:59:49,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:59:49,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:59:49,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:59:49,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:59:49,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:59:49,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:59:49,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:59:49,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:59:49,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:59:49,273 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:59:49,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:59:49,274 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:59:49,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:59:49,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:59:49,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:59:49,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:59:49,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:59:49,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:59:49,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:59:49,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:59:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:49,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:59:49,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:59:49,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:59:49,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:59:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:59:49,278 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:59:49,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:59:49,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:59:49,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2022-07-13 17:59:49,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:59:49,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:59:49,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:59:49,529 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:59:49,530 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:59:49,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-07-13 17:59:49,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e54a4eec/34c97478060b47ca8a972ba413670caa/FLAG9ccca06d4 [2022-07-13 17:59:50,016 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:59:50,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-07-13 17:59:50,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e54a4eec/34c97478060b47ca8a972ba413670caa/FLAG9ccca06d4 [2022-07-13 17:59:50,043 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e54a4eec/34c97478060b47ca8a972ba413670caa [2022-07-13 17:59:50,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:59:50,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:59:50,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:50,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:59:50,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:59:50,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@423d1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50, skipping insertion in model container [2022-07-13 17:59:50,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:59:50,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:59:50,321 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_product19.cil.c[14834,14847] [2022-07-13 17:59:50,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:50,341 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:59:50,422 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_product19.cil.c[14834,14847] [2022-07-13 17:59:50,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:59:50,465 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:59:50,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50 WrapperNode [2022-07-13 17:59:50,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:59:50,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:50,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:59:50,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:59:50,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,520 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 222 [2022-07-13 17:59:50,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:59:50,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:59:50,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:59:50,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:59:50,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:59:50,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:59:50,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:59:50,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:59:50,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (1/1) ... [2022-07-13 17:59:50,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:59:50,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:59:50,598 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) [2022-07-13 17:59:50,612 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 [2022-07-13 17:59:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:59:50,647 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 17:59:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 17:59:50,648 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:59:50,648 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:59:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:59:50,649 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:59:50,649 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:59:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:59:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-13 17:59:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-13 17:59:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:59:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:59:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:59:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:59:50,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:59:50,742 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:59:50,752 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:59:51,067 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:59:51,074 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:59:51,074 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:59:51,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:51 BoogieIcfgContainer [2022-07-13 17:59:51,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:59:51,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:59:51,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:59:51,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:59:51,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:59:50" (1/3) ... [2022-07-13 17:59:51,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1470bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:51, skipping insertion in model container [2022-07-13 17:59:51,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:59:50" (2/3) ... [2022-07-13 17:59:51,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1470bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:59:51, skipping insertion in model container [2022-07-13 17:59:51,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:51" (3/3) ... [2022-07-13 17:59:51,083 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2022-07-13 17:59:51,097 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:59:51,098 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:59:51,159 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:59:51,166 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@550d6594, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1657c405 [2022-07-13 17:59:51,167 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:59:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-13 17:59:51,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 17:59:51,188 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:51,189 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 17:59:51,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:51,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1265450001, now seen corresponding path program 1 times [2022-07-13 17:59:51,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:51,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123829295] [2022-07-13 17:59:51,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:51,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:51,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:51,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123829295] [2022-07-13 17:59:51,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123829295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:51,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:51,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:51,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191261386] [2022-07-13 17:59:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:51,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:59:51,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:51,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:59:51,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:59:51,489 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) 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) [2022-07-13 17:59:51,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:51,525 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-07-13 17:59:51,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:59:51,527 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 [2022-07-13 17:59:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:51,536 INFO L225 Difference]: With dead ends: 144 [2022-07-13 17:59:51,536 INFO L226 Difference]: Without dead ends: 67 [2022-07-13 17:59:51,540 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 [2022-07-13 17:59:51,543 INFO L413 NwaCegarLoop]: 95 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, 95 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 [2022-07-13 17:59:51,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-07-13 17:59:51,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-07-13 17:59:51,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 17:59:51,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-07-13 17:59:51,595 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2022-07-13 17:59:51,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:51,595 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-07-13 17:59:51,596 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) [2022-07-13 17:59:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-07-13 17:59:51,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-13 17:59:51,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:51,599 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] [2022-07-13 17:59:51,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:59:51,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:51,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 179493032, now seen corresponding path program 1 times [2022-07-13 17:59:51,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:51,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317044790] [2022-07-13 17:59:51,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:51,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:51,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317044790] [2022-07-13 17:59:51,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317044790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:51,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:51,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:59:51,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885146507] [2022-07-13 17:59:51,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:51,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:51,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:51,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:51,671 INFO L87 Difference]: Start difference. First operand 67 states and 86 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) [2022-07-13 17:59:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:51,693 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2022-07-13 17:59:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:51,698 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 [2022-07-13 17:59:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:51,701 INFO L225 Difference]: With dead ends: 96 [2022-07-13 17:59:51,701 INFO L226 Difference]: Without dead ends: 58 [2022-07-13 17:59:51,705 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 [2022-07-13 17:59:51,707 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 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 [2022-07-13 17:59:51,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-07-13 17:59:51,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-07-13 17:59:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 17:59:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-07-13 17:59:51,717 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2022-07-13 17:59:51,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:51,718 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-07-13 17:59:51,719 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) [2022-07-13 17:59:51,719 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-07-13 17:59:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 17:59:51,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:51,723 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] [2022-07-13 17:59:51,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:59:51,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2144024677, now seen corresponding path program 1 times [2022-07-13 17:59:51,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:51,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125566724] [2022-07-13 17:59:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:51,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:51,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125566724] [2022-07-13 17:59:51,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125566724] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:51,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:51,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 17:59:51,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727435523] [2022-07-13 17:59:51,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:51,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:59:51,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:51,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:59:51,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:59:51,832 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-07-13 17:59:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:51,993 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2022-07-13 17:59:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:59:51,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2022-07-13 17:59:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:51,996 INFO L225 Difference]: With dead ends: 197 [2022-07-13 17:59:51,996 INFO L226 Difference]: Without dead ends: 146 [2022-07-13 17:59:51,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:59:51,998 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 155 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:51,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 392 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:59:51,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-07-13 17:59:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2022-07-13 17:59:52,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2022-07-13 17:59:52,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2022-07-13 17:59:52,017 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2022-07-13 17:59:52,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:52,018 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2022-07-13 17:59:52,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-07-13 17:59:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2022-07-13 17:59:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 17:59:52,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:52,019 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] [2022-07-13 17:59:52,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:59:52,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:52,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:52,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1279070703, now seen corresponding path program 1 times [2022-07-13 17:59:52,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:52,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352786779] [2022-07-13 17:59:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:52,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:52,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:52,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352786779] [2022-07-13 17:59:52,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352786779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:52,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:52,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 17:59:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112751647] [2022-07-13 17:59:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:52,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 17:59:52,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:52,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 17:59:52,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 17:59:52,123 INFO L87 Difference]: Start difference. First operand 140 states and 184 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) [2022-07-13 17:59:52,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:52,197 INFO L93 Difference]: Finished difference Result 389 states and 533 transitions. [2022-07-13 17:59:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 17:59:52,198 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 [2022-07-13 17:59:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:52,207 INFO L225 Difference]: With dead ends: 389 [2022-07-13 17:59:52,207 INFO L226 Difference]: Without dead ends: 256 [2022-07-13 17:59:52,211 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 [2022-07-13 17:59:52,214 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:52,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 288 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-07-13 17:59:52,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-07-13 17:59:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 218 states have internal predecessors, (262), 36 states have call successors, (36), 28 states have call predecessors, (36), 25 states have return successors, (42), 21 states have call predecessors, (42), 36 states have call successors, (42) [2022-07-13 17:59:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 340 transitions. [2022-07-13 17:59:52,250 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 340 transitions. Word has length 28 [2022-07-13 17:59:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:52,251 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 340 transitions. [2022-07-13 17:59:52,251 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) [2022-07-13 17:59:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 340 transitions. [2022-07-13 17:59:52,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 17:59:52,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:52,253 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] [2022-07-13 17:59:52,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:59:52,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:52,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:52,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1024780246, now seen corresponding path program 1 times [2022-07-13 17:59:52,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:52,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493592038] [2022-07-13 17:59:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:52,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:52,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:52,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493592038] [2022-07-13 17:59:52,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493592038] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:52,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:52,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:59:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894988028] [2022-07-13 17:59:52,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:52,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:59:52,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:52,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:59:52,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:59:52,332 INFO L87 Difference]: Start difference. First operand 256 states and 340 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) [2022-07-13 17:59:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:52,366 INFO L93 Difference]: Finished difference Result 444 states and 600 transitions. [2022-07-13 17:59:52,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:59:52,367 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 [2022-07-13 17:59:52,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:52,369 INFO L225 Difference]: With dead ends: 444 [2022-07-13 17:59:52,369 INFO L226 Difference]: Without dead ends: 195 [2022-07-13 17:59:52,370 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 [2022-07-13 17:59:52,371 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:52,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:52,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-07-13 17:59:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2022-07-13 17:59:52,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 159 states have internal predecessors, (190), 22 states have call successors, (22), 22 states have call predecessors, (22), 19 states have return successors, (24), 19 states have call predecessors, (24), 22 states have call successors, (24) [2022-07-13 17:59:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 236 transitions. [2022-07-13 17:59:52,387 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 236 transitions. Word has length 30 [2022-07-13 17:59:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:52,388 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 236 transitions. [2022-07-13 17:59:52,388 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) [2022-07-13 17:59:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 236 transitions. [2022-07-13 17:59:52,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-13 17:59:52,389 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:59:52,389 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] [2022-07-13 17:59:52,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:59:52,390 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:59:52,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:59:52,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1714096393, now seen corresponding path program 1 times [2022-07-13 17:59:52,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:59:52,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701437967] [2022-07-13 17:59:52,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:59:52,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:59:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:52,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-13 17:59:52,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:59:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:59:52,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:59:52,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701437967] [2022-07-13 17:59:52,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701437967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:59:52,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:59:52,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:59:52,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17100879] [2022-07-13 17:59:52,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:59:52,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:59:52,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:59:52,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:59:52,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:59:52,482 INFO L87 Difference]: Start difference. First operand 191 states and 236 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) [2022-07-13 17:59:52,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:59:52,546 INFO L93 Difference]: Finished difference Result 206 states and 252 transitions. [2022-07-13 17:59:52,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:59:52,546 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 [2022-07-13 17:59:52,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:59:52,547 INFO L225 Difference]: With dead ends: 206 [2022-07-13 17:59:52,547 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 17:59:52,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:59:52,549 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 47 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:59:52,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 147 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:59:52,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 17:59:52,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 17:59:52,552 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) [2022-07-13 17:59:52,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 17:59:52,553 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-07-13 17:59:52,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:59:52,554 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 17:59:52,554 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) [2022-07-13 17:59:52,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 17:59:52,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 17:59:52,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:59:52,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 17:59:52,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 17:59:53,145 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 587 594) the Hoare annotation is: true [2022-07-13 17:59:53,145 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 587 594) no Hoare annotation was computed. [2022-07-13 17:59:53,145 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 587 594) no Hoare annotation was computed. [2022-07-13 17:59:53,145 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 546 552) no Hoare annotation was computed. [2022-07-13 17:59:53,145 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 546 552) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 449 460) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 449 460) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point L453-1(lines 449 460) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 764 793) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 764 793) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point L789(lines 764 793) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point L785(line 785) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point L778-1(lines 778 782) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L899 garLoopResultBuilder]: For program point L775(line 775) no Hoare annotation was computed. [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point L774-2(lines 774 788) the Hoare annotation is: true [2022-07-13 17:59:53,146 INFO L902 garLoopResultBuilder]: At program point L770(line 770) the Hoare annotation is: true [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-07-13 17:59:53,147 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 522 545) no Hoare annotation was computed. [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L573-1(lines 554 578) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:59:53,147 INFO L895 garLoopResultBuilder]: At program point L507(lines 502 510) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,147 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 664) no Hoare annotation was computed. [2022-07-13 17:59:53,147 INFO L899 garLoopResultBuilder]: For program point L660-2(lines 660 664) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L895 garLoopResultBuilder]: At program point L429-2(lines 425 436) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,148 INFO L895 garLoopResultBuilder]: At program point L611(lines 606 614) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 533 539) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 570) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L690(line 690) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 575) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 915) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L899 garLoopResultBuilder]: For program point L905(lines 905 918) no Hoare annotation was computed. [2022-07-13 17:59:53,148 INFO L895 garLoopResultBuilder]: At program point L905-1(lines 897 921) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-07-13 17:59:53,148 INFO L895 garLoopResultBuilder]: At program point L666(lines 651 669) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,148 INFO L895 garLoopResultBuilder]: At program point L691(lines 686 693) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:59:53,149 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 522 545) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 525 544) no Hoare annotation was computed. [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 522 545) no Hoare annotation was computed. [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 690) no Hoare annotation was computed. [2022-07-13 17:59:53,149 INFO L902 garLoopResultBuilder]: At program point L832(lines 825 834) the Hoare annotation is: true [2022-07-13 17:59:53,149 INFO L902 garLoopResultBuilder]: At program point L857(lines 838 860) the Hoare annotation is: true [2022-07-13 17:59:53,149 INFO L895 garLoopResultBuilder]: At program point L754(lines 705 755) the Hoare annotation is: false [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 748) no Hoare annotation was computed. [2022-07-13 17:59:53,149 INFO L895 garLoopResultBuilder]: At program point L676(line 676) the Hoare annotation is: false [2022-07-13 17:59:53,149 INFO L895 garLoopResultBuilder]: At program point L742-2(lines 736 749) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 17:59:53,149 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L751(lines 706 753) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L892(lines 887 895) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L822(lines 818 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L884(lines 880 886) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 17:59:53,150 INFO L895 garLoopResultBuilder]: At program point L682(lines 670 684) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point L707(lines 706 753) no Hoare annotation was computed. [2022-07-13 17:59:53,150 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 680) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L674-1(lines 674 680) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 749) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:59:53,151 INFO L902 garLoopResultBuilder]: At program point L757(lines 696 761) the Hoare annotation is: true [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 855) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L848-2(lines 848 855) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L895 garLoopResultBuilder]: At program point L877(lines 873 879) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 712) no Hoare annotation was computed. [2022-07-13 17:59:53,151 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 437 448) no Hoare annotation was computed. [2022-07-13 17:59:53,152 INFO L899 garLoopResultBuilder]: For program point L441-1(lines 437 448) no Hoare annotation was computed. [2022-07-13 17:59:53,152 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 437 448) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-07-13 17:59:53,163 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-13 17:59:53,166 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:59:53,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:59:53 BoogieIcfgContainer [2022-07-13 17:59:53,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:59:53,194 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:59:53,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:59:53,195 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:59:53,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:59:51" (3/4) ... [2022-07-13 17:59:53,198 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 17:59:53,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-13 17:59:53,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-13 17:59:53,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 17:59:53,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 17:59:53,203 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 17:59:53,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 17:59:53,214 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-13 17:59:53,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 17:59:53,215 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 17:59:53,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 17:59:53,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 17:59:53,216 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:53,217 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:59:53,239 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-07-13 17:59:53,240 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-07-13 17:59:53,242 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:59:53,243 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-07-13 17:59:53,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-07-13 17:59:53,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2022-07-13 17:59:53,245 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:59:53,245 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-07-13 17:59:53,245 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:59:53,245 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:59:53,273 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:59:53,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:59:53,274 INFO L158 Benchmark]: Toolchain (without parser) took 3227.62ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.7MB in the beginning and 73.0MB in the end (delta: -5.3MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,274 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:53,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.37ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.5MB in the beginning and 93.2MB in the end (delta: -25.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.00ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 90.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,277 INFO L158 Benchmark]: Boogie Preprocessor took 47.99ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:59:53,277 INFO L158 Benchmark]: RCFGBuilder took 506.88ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 74.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,278 INFO L158 Benchmark]: TraceAbstraction took 2116.05ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 78.3MB in the end (delta: -4.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,278 INFO L158 Benchmark]: Witness Printer took 79.06ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 73.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:59:53,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory was 57.5MB in the beginning and 57.4MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.37ms. Allocated memory was 98.6MB in the beginning and 127.9MB in the end (delta: 29.4MB). Free memory was 67.5MB in the beginning and 93.2MB in the end (delta: -25.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.00ms. Allocated memory is still 127.9MB. Free memory was 93.2MB in the beginning and 90.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.99ms. Allocated memory is still 127.9MB. Free memory was 90.7MB in the beginning and 89.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.88ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 74.0MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2116.05ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 78.3MB in the end (delta: -4.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Witness Printer took 79.06ms. Allocated memory is still 127.9MB. Free memory was 78.3MB in the beginning and 73.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 690]: 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 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 302 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 297 mSDsluCounter, 1096 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 669 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 144 IncrementalHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 427 mSDtfsCounter, 144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 352 PreInvPairs, 418 NumberOfFragments, 252 HoareAnnotationTreeSize, 352 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 1661 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 825]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 670]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 887]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) RESULT: Ultimate proved your program to be correct! [2022-07-13 17:59:53,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE