./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8 --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 310c99156af564276fd2307b8bd19d77055bd9a88be466df2e869c4dbf78e36f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:07:28,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:07:28,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:07:28,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:07:28,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:07:28,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:07:28,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:07:28,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:07:28,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:07:28,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:07:28,450 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:07:28,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:07:28,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:07:28,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:07:28,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:07:28,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:07:28,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:07:28,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:07:28,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:07:28,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:07:28,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:07:28,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:07:28,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:07:28,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:07:28,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:07:28,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:07:28,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:07:28,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:07:28,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:07:28,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:07:28,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:07:28,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:07:28,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:07:28,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:07:28,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:07:28,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:07:28,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:07:28,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:07:28,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:07:28,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:07:28,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:07:28,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 22:07:28,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:07:28,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:07:28,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:07:28,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:07:28,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:07:28,497 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:07:28,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:07:28,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:07:28,498 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:07:28,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:07:28,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:07:28,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:07:28,500 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:07:28,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:07:28,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:07:28,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:07:28,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:07:28,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:07:28,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:07:28,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:07:28,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:07:28,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:07:28,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:07:28,502 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:07:28,503 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310c99156af564276fd2307b8bd19d77055bd9a88be466df2e869c4dbf78e36f [2022-12-13 22:07:28,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:07:28,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:07:28,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:07:28,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:07:28,706 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:07:28,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2022-12-13 22:07:31,322 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:07:31,512 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:07:31,513 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2022-12-13 22:07:31,520 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/data/226f4d076/cc4f86f8c5594597b5692cafcd8b1cac/FLAG4cb633cb2 [2022-12-13 22:07:31,530 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/data/226f4d076/cc4f86f8c5594597b5692cafcd8b1cac [2022-12-13 22:07:31,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:07:31,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:07:31,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:07:31,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:07:31,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:07:31,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de77e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31, skipping insertion in model container [2022-12-13 22:07:31,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:07:31,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:07:31,702 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2022-12-13 22:07:31,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:07:31,799 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:07:31,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2022-12-13 22:07:31,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:07:31,865 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:07:31,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31 WrapperNode [2022-12-13 22:07:31,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:07:31,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:07:31,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:07:31,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:07:31,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,908 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 172 [2022-12-13 22:07:31,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:07:31,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:07:31,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:07:31,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:07:31,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:07:31,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:07:31,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:07:31,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:07:31,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (1/1) ... [2022-12-13 22:07:31,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:07:31,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:07:31,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:07:31,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:07:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:07:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 22:07:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 22:07:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 22:07:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 22:07:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 22:07:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 22:07:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 22:07:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 22:07:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 22:07:31,999 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 22:07:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 22:07:32,000 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 22:07:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:07:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 22:07:32,000 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 22:07:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:07:32,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:07:32,060 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:07:32,061 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:07:32,265 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:07:32,270 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:07:32,271 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 22:07:32,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:07:32 BoogieIcfgContainer [2022-12-13 22:07:32,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:07:32,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:07:32,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:07:32,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:07:32,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:07:31" (1/3) ... [2022-12-13 22:07:32,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25094c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:07:32, skipping insertion in model container [2022-12-13 22:07:32,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:07:31" (2/3) ... [2022-12-13 22:07:32,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25094c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:07:32, skipping insertion in model container [2022-12-13 22:07:32,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:07:32" (3/3) ... [2022-12-13 22:07:32,279 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2022-12-13 22:07:32,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:07:32,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 22:07:32,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:07:32,341 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@687ed6d8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:07:32,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 22:07:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-13 22:07:32,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 22:07:32,352 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:32,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:32,352 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1452553281, now seen corresponding path program 1 times [2022-12-13 22:07:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:32,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228778159] [2022-12-13 22:07:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 22:07:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:32,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:32,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228778159] [2022-12-13 22:07:32,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228778159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:32,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:32,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:07:32,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151801787] [2022-12-13 22:07:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:32,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:07:32,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:07:32,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:07:32,541 INFO L87 Difference]: Start difference. First operand has 82 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 69 states have internal predecessors, (86), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:32,575 INFO L93 Difference]: Finished difference Result 156 states and 211 transitions. [2022-12-13 22:07:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:07:32,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-12-13 22:07:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:32,587 INFO L225 Difference]: With dead ends: 156 [2022-12-13 22:07:32,587 INFO L226 Difference]: Without dead ends: 73 [2022-12-13 22:07:32,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:07:32,594 INFO L413 NwaCegarLoop]: 102 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, 102 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 [2022-12-13 22:07:32,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:07:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-13 22:07:32,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-13 22:07:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.309090909090909) internal successors, (72), 61 states have internal predecessors, (72), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 22:07:32,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2022-12-13 22:07:32,635 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 25 [2022-12-13 22:07:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:32,636 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2022-12-13 22:07:32,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2022-12-13 22:07:32,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 22:07:32,638 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:32,638 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] [2022-12-13 22:07:32,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:07:32,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:32,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1317189843, now seen corresponding path program 1 times [2022-12-13 22:07:32,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:32,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134737528] [2022-12-13 22:07:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 22:07:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:32,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:32,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134737528] [2022-12-13 22:07:32,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134737528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:32,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:32,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:07:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979263275] [2022-12-13 22:07:32,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:32,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:07:32,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:32,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:07:32,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:32,746 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:32,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:32,757 INFO L93 Difference]: Finished difference Result 108 states and 136 transitions. [2022-12-13 22:07:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:07:32,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-12-13 22:07:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:32,759 INFO L225 Difference]: With dead ends: 108 [2022-12-13 22:07:32,759 INFO L226 Difference]: Without dead ends: 64 [2022-12-13 22:07:32,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:32,760 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 16 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 139 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 [2022-12-13 22:07:32,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:07:32,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-13 22:07:32,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-12-13 22:07:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 55 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 22:07:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2022-12-13 22:07:32,768 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 26 [2022-12-13 22:07:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:32,768 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2022-12-13 22:07:32,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2022-12-13 22:07:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 22:07:32,770 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:32,770 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] [2022-12-13 22:07:32,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:07:32,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:32,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:32,771 INFO L85 PathProgramCache]: Analyzing trace with hash 755375039, now seen corresponding path program 1 times [2022-12-13 22:07:32,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:32,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196812107] [2022-12-13 22:07:32,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:32,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 22:07:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:32,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:32,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196812107] [2022-12-13 22:07:32,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196812107] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:32,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:32,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 22:07:32,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305716072] [2022-12-13 22:07:32,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:32,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:07:32,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:32,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:07:32,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:07:32,887 INFO L87 Difference]: Start difference. First operand 64 states and 81 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:33,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:33,023 INFO L93 Difference]: Finished difference Result 221 states and 287 transitions. [2022-12-13 22:07:33,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:07:33,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-12-13 22:07:33,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:33,027 INFO L225 Difference]: With dead ends: 221 [2022-12-13 22:07:33,027 INFO L226 Difference]: Without dead ends: 164 [2022-12-13 22:07:33,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 22:07:33,029 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 167 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:33,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 450 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 22:07:33,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-13 22:07:33,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 158. [2022-12-13 22:07:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 119 states have (on average 1.361344537815126) internal successors, (162), 133 states have internal predecessors, (162), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-12-13 22:07:33,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 205 transitions. [2022-12-13 22:07:33,061 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 205 transitions. Word has length 30 [2022-12-13 22:07:33,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:33,061 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 205 transitions. [2022-12-13 22:07:33,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:07:33,062 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 205 transitions. [2022-12-13 22:07:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 22:07:33,063 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:33,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:33,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:07:33,064 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:33,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1326960786, now seen corresponding path program 1 times [2022-12-13 22:07:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:33,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548886221] [2022-12-13 22:07:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:33,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 22:07:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 22:07:33,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:33,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:33,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548886221] [2022-12-13 22:07:33,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548886221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:33,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:33,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:07:33,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231873540] [2022-12-13 22:07:33,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:33,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 22:07:33,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 22:07:33,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:07:33,196 INFO L87 Difference]: Start difference. First operand 158 states and 205 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:07:33,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:33,245 INFO L93 Difference]: Finished difference Result 452 states and 606 transitions. [2022-12-13 22:07:33,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:07:33,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-12-13 22:07:33,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:33,248 INFO L225 Difference]: With dead ends: 452 [2022-12-13 22:07:33,248 INFO L226 Difference]: Without dead ends: 301 [2022-12-13 22:07:33,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 22:07:33,250 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 52 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:07:33,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 323 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:07:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-12-13 22:07:33,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 292. [2022-12-13 22:07:33,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 218 states have (on average 1.3394495412844036) internal successors, (292), 242 states have internal predecessors, (292), 42 states have call successors, (42), 34 states have call predecessors, (42), 31 states have return successors, (48), 27 states have call predecessors, (48), 42 states have call successors, (48) [2022-12-13 22:07:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 382 transitions. [2022-12-13 22:07:33,277 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 382 transitions. Word has length 35 [2022-12-13 22:07:33,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:33,278 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 382 transitions. [2022-12-13 22:07:33,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:07:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 382 transitions. [2022-12-13 22:07:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 22:07:33,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:33,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:33,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:07:33,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 942143177, now seen corresponding path program 1 times [2022-12-13 22:07:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:33,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394562785] [2022-12-13 22:07:33,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:33,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 22:07:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 22:07:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:07:33,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:07:33,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:07:33,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394562785] [2022-12-13 22:07:33,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394562785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:07:33,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:07:33,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:07:33,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914675621] [2022-12-13 22:07:33,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:07:33,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:07:33,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:07:33,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:07:33,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:33,324 INFO L87 Difference]: Start difference. First operand 292 states and 382 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:07:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:07:33,345 INFO L93 Difference]: Finished difference Result 516 states and 684 transitions. [2022-12-13 22:07:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:07:33,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-12-13 22:07:33,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:07:33,348 INFO L225 Difference]: With dead ends: 516 [2022-12-13 22:07:33,349 INFO L226 Difference]: Without dead ends: 231 [2022-12-13 22:07:33,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:07:33,351 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 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 [2022-12-13 22:07:33,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:07:33,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-13 22:07:33,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2022-12-13 22:07:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 183 states have internal predecessors, (220), 28 states have call successors, (28), 28 states have call predecessors, (28), 25 states have return successors, (30), 25 states have call predecessors, (30), 28 states have call successors, (30) [2022-12-13 22:07:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2022-12-13 22:07:33,367 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 37 [2022-12-13 22:07:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:07:33,368 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2022-12-13 22:07:33,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 22:07:33,368 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2022-12-13 22:07:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 22:07:33,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:07:33,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:07:33,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:07:33,370 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 22:07:33,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:07:33,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1101152696, now seen corresponding path program 1 times [2022-12-13 22:07:33,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:07:33,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601593975] [2022-12-13 22:07:33,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:07:33,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:07:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:07:33,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:07:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:07:33,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:07:33,412 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:07:33,413 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 22:07:33,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:07:33,417 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 22:07:33,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:07:33,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:07:33 BoogieIcfgContainer [2022-12-13 22:07:33,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:07:33,445 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:07:33,445 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:07:33,445 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:07:33,446 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:07:32" (3/4) ... [2022-12-13 22:07:33,447 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 22:07:33,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:07:33,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:07:33,485 INFO L158 Benchmark]: Toolchain (without parser) took 1952.12ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 98.4MB in the beginning and 131.5MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:33,485 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 80.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:33,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.41ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 103.5MB in the end (delta: -5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 22:07:33,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:07:33,486 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:33,486 INFO L158 Benchmark]: RCFGBuilder took 339.19ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 84.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:07:33,486 INFO L158 Benchmark]: TraceAbstraction took 1170.54ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.3MB in the beginning and 135.7MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:07:33,486 INFO L158 Benchmark]: Witness Printer took 39.10ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:07:33,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 102.8MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 80.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.41ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 103.5MB in the end (delta: -5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 100.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.19ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 84.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1170.54ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 83.3MB in the beginning and 135.7MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.10ms. Allocated memory is still 172.0MB. Free memory was 135.7MB in the beginning and 131.5MB in the end (delta: 4.2MB). 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 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L303] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int cleanupTimeShifts = 4; [L604] int waterLevel = 1; [L605] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L764] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] int retValue_acc ; [L579] int tmp ; [L583] FCALL select_helpers() [L584] FCALL select_features() [L585] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L585] RET, EXPR valid_product() [L585] tmp = valid_product() [L587] COND TRUE \read(tmp) [L589] FCALL setup() [L590] CALL runTest() [L572] CALL test() [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L704] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L712] tmp = __VERIFIER_nondet_int() [L714] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L716] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] COND TRUE waterLevel < 2 [L623] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L716] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L722] tmp___0 = __VERIFIER_nondet_int() [L724] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L749] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] COND TRUE \read(systemActive) [L779] CALL processEnvironment() [L799] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L802] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L817] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L779] RET processEnvironment() [L785] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] int retValue_acc ; [L646] retValue_acc = methaneLevelCritical [L647] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L107] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L675] int retValue_acc ; [L678] retValue_acc = waterLevel [L679] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L117] CALL, EXPR isPumpRunning() [L851] int retValue_acc ; [L854] retValue_acc = pumpRunning [L855] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L117] RET, EXPR isPumpRunning() [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) [L123] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 279 mSDsluCounter, 1070 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 642 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 428 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:07:33,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a402fb2-ff93-453d-8d13-0476077294df/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE