./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R --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 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 --- 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-38b53e6 [2022-11-25 17:40:58,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:58,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:58,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:58,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:58,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:58,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:58,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:58,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:58,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:58,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:58,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:58,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:58,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:58,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:58,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:58,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:58,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:58,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:58,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:58,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:58,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:58,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:58,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:58,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:58,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:58,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:58,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:58,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:58,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:58,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:58,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:58,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:58,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:58,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:58,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:58,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:58,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:58,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:58,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:58,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:58,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:40:59,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:59,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:59,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:59,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:59,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:59,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:59,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:59,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:59,007 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:59,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:59,008 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:40:59,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:59,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:40:59,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:59,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:59,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:59,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:59,010 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:40:59,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:59,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:59,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:59,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:59,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:59,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:59,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:59,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:59,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:59,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:59,013 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:59,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:59,014 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:59,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:59,014 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:59,014 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:59,015 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_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87e1d1b45ecae6206db87e264fd33705b608c5376aceaefe9ff79eccaaf25b96 [2022-11-25 17:40:59,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:59,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:59,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:59,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:59,398 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:59,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2022-11-25 17:41:02,538 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:41:02,829 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:41:02,830 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c [2022-11-25 17:41:02,846 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/data/ce5eb94ee/b634c5abbbda4380b71987a1f846ab9c/FLAGa242265c2 [2022-11-25 17:41:02,880 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/data/ce5eb94ee/b634c5abbbda4380b71987a1f846ab9c [2022-11-25 17:41:02,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:41:02,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:41:02,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:41:02,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:41:02,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:41:02,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:02" (1/1) ... [2022-11-25 17:41:02,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bfbf34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:02, skipping insertion in model container [2022-11-25 17:41:02,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:41:02" (1/1) ... [2022-11-25 17:41:02,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:41:02,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:41:03,311 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_ebfd6e5f-e42f-4839-bc36-7a449690e71f/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15496,15509] [2022-11-25 17:41:03,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:41:03,342 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:41:03,429 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_ebfd6e5f-e42f-4839-bc36-7a449690e71f/sv-benchmarks/c/product-lines/minepump_spec4_product39.cil.c[15496,15509] [2022-11-25 17:41:03,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:41:03,460 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:41:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03 WrapperNode [2022-11-25 17:41:03,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:41:03,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:41:03,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:41:03,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:41:03,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,516 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 198 [2022-11-25 17:41:03,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:41:03,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:41:03,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:41:03,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:41:03,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:41:03,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:41:03,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:41:03,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:41:03,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (1/1) ... [2022-11-25 17:41:03,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:41:03,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:03,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:41:03,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:41:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:41:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-25 17:41:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-25 17:41:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-25 17:41:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-25 17:41:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-25 17:41:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-25 17:41:03,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:41:03,706 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-25 17:41:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-25 17:41:03,707 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-25 17:41:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-25 17:41:03,707 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-25 17:41:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:41:03,707 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-25 17:41:03,708 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-25 17:41:03,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:41:03,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:41:03,853 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:41:03,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:41:04,242 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:41:04,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:41:04,252 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:41:04,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:04 BoogieIcfgContainer [2022-11-25 17:41:04,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:41:04,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:41:04,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:41:04,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:41:04,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:41:02" (1/3) ... [2022-11-25 17:41:04,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d095d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:41:04, skipping insertion in model container [2022-11-25 17:41:04,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:41:03" (2/3) ... [2022-11-25 17:41:04,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d095d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:41:04, skipping insertion in model container [2022-11-25 17:41:04,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:04" (3/3) ... [2022-11-25 17:41:04,265 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2022-11-25 17:41:04,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:41:04,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:41:04,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:41:04,359 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;@3797e6ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:41:04,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:41:04,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 75 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-25 17:41:04,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:41:04,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:04,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:04,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:04,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1733768608, now seen corresponding path program 1 times [2022-11-25 17:41:04,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:04,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877156651] [2022-11-25 17:41:04,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:04,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:04,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:04,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877156651] [2022-11-25 17:41:04,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877156651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:04,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:04,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:41:04,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514094909] [2022-11-25 17:41:04,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:41:04,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:04,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:41:04,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:41:04,665 INFO L87 Difference]: Start difference. First operand has 87 states, 66 states have (on average 1.393939393939394) internal successors, (92), 75 states have internal predecessors, (92), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) 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) [2022-11-25 17:41:04,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:04,708 INFO L93 Difference]: Finished difference Result 166 states and 227 transitions. [2022-11-25 17:41:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:41:04,711 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 [2022-11-25 17:41:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:04,722 INFO L225 Difference]: With dead ends: 166 [2022-11-25 17:41:04,723 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 17:41:04,727 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 [2022-11-25 17:41:04,735 INFO L413 NwaCegarLoop]: 110 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, 110 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 [2022-11-25 17:41:04,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:41:04,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 17:41:04,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 17:41:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 67 states have internal predecessors, (78), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-25 17:41:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2022-11-25 17:41:04,787 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 19 [2022-11-25 17:41:04,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:04,788 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2022-11-25 17:41:04,788 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) [2022-11-25 17:41:04,788 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2022-11-25 17:41:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:41:04,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:04,791 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] [2022-11-25 17:41:04,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:41:04,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash -785386082, now seen corresponding path program 1 times [2022-11-25 17:41:04,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074403579] [2022-11-25 17:41:04,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074403579] [2022-11-25 17:41:04,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074403579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:04,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:04,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:41:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096261369] [2022-11-25 17:41:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:04,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:41:04,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:41:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:41:04,968 INFO L87 Difference]: Start difference. First operand 78 states and 101 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) [2022-11-25 17:41:04,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:04,994 INFO L93 Difference]: Finished difference Result 118 states and 152 transitions. [2022-11-25 17:41:04,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:41:04,995 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 [2022-11-25 17:41:04,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:04,996 INFO L225 Difference]: With dead ends: 118 [2022-11-25 17:41:04,997 INFO L226 Difference]: Without dead ends: 69 [2022-11-25 17:41:04,998 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 [2022-11-25 17:41:05,000 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 16 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 155 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 [2022-11-25 17:41:05,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:41:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-25 17:41:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-25 17:41:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 61 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-25 17:41:05,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2022-11-25 17:41:05,015 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 20 [2022-11-25 17:41:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:05,015 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2022-11-25 17:41:05,016 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) [2022-11-25 17:41:05,016 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2022-11-25 17:41:05,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:41:05,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:05,018 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] [2022-11-25 17:41:05,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:41:05,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:05,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:05,019 INFO L85 PathProgramCache]: Analyzing trace with hash -518838954, now seen corresponding path program 1 times [2022-11-25 17:41:05,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:05,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267133867] [2022-11-25 17:41:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:05,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:05,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:05,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267133867] [2022-11-25 17:41:05,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267133867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:05,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:05,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:41:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344823671] [2022-11-25 17:41:05,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:05,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:41:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:05,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:41:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:41:05,136 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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) [2022-11-25 17:41:05,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:05,181 INFO L93 Difference]: Finished difference Result 192 states and 253 transitions. [2022-11-25 17:41:05,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:41:05,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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 [2022-11-25 17:41:05,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:05,200 INFO L225 Difference]: With dead ends: 192 [2022-11-25 17:41:05,201 INFO L226 Difference]: Without dead ends: 130 [2022-11-25 17:41:05,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:41:05,204 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 69 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:05,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 186 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:41:05,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-25 17:41:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-11-25 17:41:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 111 states have internal predecessors, (131), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 17:41:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-11-25 17:41:05,236 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 24 [2022-11-25 17:41:05,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:05,236 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-11-25 17:41:05,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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) [2022-11-25 17:41:05,237 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-11-25 17:41:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 17:41:05,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:05,239 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] [2022-11-25 17:41:05,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:41:05,240 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1131364876, now seen corresponding path program 1 times [2022-11-25 17:41:05,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062507516] [2022-11-25 17:41:05,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:05,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:05,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:05,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062507516] [2022-11-25 17:41:05,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062507516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:05,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:05,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:41:05,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183012754] [2022-11-25 17:41:05,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:05,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:41:05,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:05,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:41:05,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:41:05,478 INFO L87 Difference]: Start difference. First operand 127 states and 167 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) [2022-11-25 17:41:05,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:05,659 INFO L93 Difference]: Finished difference Result 355 states and 486 transitions. [2022-11-25 17:41:05,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:41:05,660 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 [2022-11-25 17:41:05,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:05,664 INFO L225 Difference]: With dead ends: 355 [2022-11-25 17:41:05,664 INFO L226 Difference]: Without dead ends: 235 [2022-11-25 17:41:05,666 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 [2022-11-25 17:41:05,668 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 60 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:05,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 353 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:41:05,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-25 17:41:05,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2022-11-25 17:41:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 176 states have (on average 1.3409090909090908) internal successors, (236), 203 states have internal predecessors, (236), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2022-11-25 17:41:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 310 transitions. [2022-11-25 17:41:05,717 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 310 transitions. Word has length 28 [2022-11-25 17:41:05,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:05,718 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 310 transitions. [2022-11-25 17:41:05,718 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) [2022-11-25 17:41:05,719 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 310 transitions. [2022-11-25 17:41:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 17:41:05,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:05,722 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] [2022-11-25 17:41:05,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:41:05,723 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:05,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2013490001, now seen corresponding path program 1 times [2022-11-25 17:41:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:05,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002857659] [2022-11-25 17:41:05,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:05,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:05,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002857659] [2022-11-25 17:41:05,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002857659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:05,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:05,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:41:05,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529191318] [2022-11-25 17:41:05,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:05,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:41:05,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:41:05,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:41:05,817 INFO L87 Difference]: Start difference. First operand 235 states and 310 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) [2022-11-25 17:41:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:05,911 INFO L93 Difference]: Finished difference Result 581 states and 789 transitions. [2022-11-25 17:41:05,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:41:05,912 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 [2022-11-25 17:41:05,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:05,915 INFO L225 Difference]: With dead ends: 581 [2022-11-25 17:41:05,916 INFO L226 Difference]: Without dead ends: 353 [2022-11-25 17:41:05,920 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 [2022-11-25 17:41:05,922 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 51 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:05,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 148 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:41:05,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-25 17:41:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 344. [2022-11-25 17:41:05,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 265 states have (on average 1.3018867924528301) internal successors, (345), 285 states have internal predecessors, (345), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2022-11-25 17:41:05,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 445 transitions. [2022-11-25 17:41:05,973 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 445 transitions. Word has length 30 [2022-11-25 17:41:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:05,974 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 445 transitions. [2022-11-25 17:41:05,974 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) [2022-11-25 17:41:05,975 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 445 transitions. [2022-11-25 17:41:05,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 17:41:05,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:05,977 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] [2022-11-25 17:41:05,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:41:05,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:05,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:05,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1816512334, now seen corresponding path program 1 times [2022-11-25 17:41:05,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:05,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681725241] [2022-11-25 17:41:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:05,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:06,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:06,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:06,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681725241] [2022-11-25 17:41:06,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681725241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:06,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:06,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:41:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394247726] [2022-11-25 17:41:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:41:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:06,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:41:06,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:41:06,135 INFO L87 Difference]: Start difference. First operand 344 states and 445 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) [2022-11-25 17:41:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:06,448 INFO L93 Difference]: Finished difference Result 434 states and 564 transitions. [2022-11-25 17:41:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:41:06,449 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 [2022-11-25 17:41:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:06,453 INFO L225 Difference]: With dead ends: 434 [2022-11-25 17:41:06,454 INFO L226 Difference]: Without dead ends: 432 [2022-11-25 17:41:06,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:41:06,456 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 124 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:06,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 338 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:41:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-25 17:41:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 406. [2022-11-25 17:41:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 313 states have (on average 1.2843450479233227) internal successors, (402), 343 states have internal predecessors, (402), 47 states have call successors, (47), 39 states have call predecessors, (47), 45 states have return successors, (77), 40 states have call predecessors, (77), 47 states have call successors, (77) [2022-11-25 17:41:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 526 transitions. [2022-11-25 17:41:06,527 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 526 transitions. Word has length 32 [2022-11-25 17:41:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:06,527 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 526 transitions. [2022-11-25 17:41:06,528 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) [2022-11-25 17:41:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 526 transitions. [2022-11-25 17:41:06,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:41:06,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:06,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:06,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:41:06,531 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:06,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1551163105, now seen corresponding path program 1 times [2022-11-25 17:41:06,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:06,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937788528] [2022-11-25 17:41:06,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:06,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:06,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:06,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:41:06,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:06,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937788528] [2022-11-25 17:41:06,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937788528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:06,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:06,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:41:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484774790] [2022-11-25 17:41:06,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:06,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:41:06,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:41:06,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:41:06,647 INFO L87 Difference]: Start difference. First operand 406 states and 526 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:41:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:07,009 INFO L93 Difference]: Finished difference Result 911 states and 1202 transitions. [2022-11-25 17:41:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:41:07,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-25 17:41:07,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:07,014 INFO L225 Difference]: With dead ends: 911 [2022-11-25 17:41:07,014 INFO L226 Difference]: Without dead ends: 512 [2022-11-25 17:41:07,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:41:07,017 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 126 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:07,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 314 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:41:07,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2022-11-25 17:41:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 458. [2022-11-25 17:41:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 359 states have (on average 1.2646239554317549) internal successors, (454), 389 states have internal predecessors, (454), 47 states have call successors, (47), 39 states have call predecessors, (47), 51 states have return successors, (85), 44 states have call predecessors, (85), 47 states have call successors, (85) [2022-11-25 17:41:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 586 transitions. [2022-11-25 17:41:07,073 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 586 transitions. Word has length 42 [2022-11-25 17:41:07,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:07,073 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 586 transitions. [2022-11-25 17:41:07,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:41:07,074 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 586 transitions. [2022-11-25 17:41:07,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:41:07,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:07,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:07,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:41:07,077 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:07,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1732686941, now seen corresponding path program 1 times [2022-11-25 17:41:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:07,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857224173] [2022-11-25 17:41:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:07,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:07,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:07,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:41:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:07,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:07,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857224173] [2022-11-25 17:41:07,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857224173] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:07,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:07,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:41:07,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683184182] [2022-11-25 17:41:07,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:07,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:41:07,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:07,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:41:07,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:41:07,221 INFO L87 Difference]: Start difference. First operand 458 states and 586 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:41:07,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:07,847 INFO L93 Difference]: Finished difference Result 918 states and 1202 transitions. [2022-11-25 17:41:07,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:41:07,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2022-11-25 17:41:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:07,852 INFO L225 Difference]: With dead ends: 918 [2022-11-25 17:41:07,852 INFO L226 Difference]: Without dead ends: 467 [2022-11-25 17:41:07,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:41:07,859 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 349 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:07,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 344 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:41:07,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-25 17:41:07,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 353. [2022-11-25 17:41:07,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 276 states have (on average 1.2608695652173914) internal successors, (348), 299 states have internal predecessors, (348), 38 states have call successors, (38), 32 states have call predecessors, (38), 38 states have return successors, (60), 33 states have call predecessors, (60), 38 states have call successors, (60) [2022-11-25 17:41:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 446 transitions. [2022-11-25 17:41:07,916 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 446 transitions. Word has length 42 [2022-11-25 17:41:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:07,918 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 446 transitions. [2022-11-25 17:41:07,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:41:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 446 transitions. [2022-11-25 17:41:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:41:07,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:07,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:07,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:41:07,921 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash 711618587, now seen corresponding path program 1 times [2022-11-25 17:41:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:07,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467065905] [2022-11-25 17:41:07,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:07,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:41:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:08,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:08,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467065905] [2022-11-25 17:41:08,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467065905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:08,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:08,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:41:08,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656876305] [2022-11-25 17:41:08,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:08,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:41:08,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:08,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:41:08,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:41:08,101 INFO L87 Difference]: Start difference. First operand 353 states and 446 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:41:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:08,622 INFO L93 Difference]: Finished difference Result 827 states and 1110 transitions. [2022-11-25 17:41:08,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:41:08,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-11-25 17:41:08,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:08,626 INFO L225 Difference]: With dead ends: 827 [2022-11-25 17:41:08,626 INFO L226 Difference]: Without dead ends: 564 [2022-11-25 17:41:08,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:41:08,630 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 194 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:08,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 415 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:41:08,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-11-25 17:41:08,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 539. [2022-11-25 17:41:08,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 422 states have (on average 1.2322274881516588) internal successors, (520), 452 states have internal predecessors, (520), 57 states have call successors, (57), 49 states have call predecessors, (57), 59 states have return successors, (115), 58 states have call predecessors, (115), 57 states have call successors, (115) [2022-11-25 17:41:08,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 692 transitions. [2022-11-25 17:41:08,728 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 692 transitions. Word has length 42 [2022-11-25 17:41:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:08,729 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 692 transitions. [2022-11-25 17:41:08,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:41:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 692 transitions. [2022-11-25 17:41:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 17:41:08,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:08,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:08,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:41:08,733 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:08,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:08,733 INFO L85 PathProgramCache]: Analyzing trace with hash -258129849, now seen corresponding path program 1 times [2022-11-25 17:41:08,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:08,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760163937] [2022-11-25 17:41:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:08,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:41:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:41:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:08,877 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:08,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:08,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760163937] [2022-11-25 17:41:08,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760163937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:08,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:08,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:41:08,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921108478] [2022-11-25 17:41:08,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:08,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:41:08,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:08,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:41:08,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:41:08,882 INFO L87 Difference]: Start difference. First operand 539 states and 692 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:41:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:09,174 INFO L93 Difference]: Finished difference Result 650 states and 832 transitions. [2022-11-25 17:41:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:41:09,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 65 [2022-11-25 17:41:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:09,178 INFO L225 Difference]: With dead ends: 650 [2022-11-25 17:41:09,179 INFO L226 Difference]: Without dead ends: 276 [2022-11-25 17:41:09,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:41:09,181 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 194 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:09,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 312 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:41:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-25 17:41:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 265. [2022-11-25 17:41:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 208 states have (on average 1.1923076923076923) internal successors, (248), 222 states have internal predecessors, (248), 27 states have call successors, (27), 24 states have call predecessors, (27), 29 states have return successors, (56), 28 states have call predecessors, (56), 27 states have call successors, (56) [2022-11-25 17:41:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 331 transitions. [2022-11-25 17:41:09,224 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 331 transitions. Word has length 65 [2022-11-25 17:41:09,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:09,225 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 331 transitions. [2022-11-25 17:41:09,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:41:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 331 transitions. [2022-11-25 17:41:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 17:41:09,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:09,229 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:09,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:41:09,230 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:09,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:09,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1928338098, now seen corresponding path program 1 times [2022-11-25 17:41:09,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:09,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429187387] [2022-11-25 17:41:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:09,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:41:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 17:41:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:41:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:41:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:41:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:41:09,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429187387] [2022-11-25 17:41:09,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429187387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:41:09,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235326757] [2022-11-25 17:41:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:09,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:41:09,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:41:09,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:41:09,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:41:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:09,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 17:41:09,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:41:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:09,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:41:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:41:10,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235326757] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:41:10,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:41:10,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-11-25 17:41:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369680959] [2022-11-25 17:41:10,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:41:10,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:41:10,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:10,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:41:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:41:10,021 INFO L87 Difference]: Start difference. First operand 265 states and 331 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:41:10,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:41:10,856 INFO L93 Difference]: Finished difference Result 625 states and 827 transitions. [2022-11-25 17:41:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 17:41:10,857 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2022-11-25 17:41:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:41:10,861 INFO L225 Difference]: With dead ends: 625 [2022-11-25 17:41:10,862 INFO L226 Difference]: Without dead ends: 407 [2022-11-25 17:41:10,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 155 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2022-11-25 17:41:10,864 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 222 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:41:10,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 496 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:41:10,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-25 17:41:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 360. [2022-11-25 17:41:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 279 states have (on average 1.1971326164874552) internal successors, (334), 299 states have internal predecessors, (334), 39 states have call successors, (39), 35 states have call predecessors, (39), 41 states have return successors, (85), 37 states have call predecessors, (85), 39 states have call successors, (85) [2022-11-25 17:41:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 458 transitions. [2022-11-25 17:41:10,919 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 458 transitions. Word has length 74 [2022-11-25 17:41:10,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:41:10,921 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 458 transitions. [2022-11-25 17:41:10,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-25 17:41:10,921 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 458 transitions. [2022-11-25 17:41:10,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 17:41:10,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:41:10,925 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:10,942 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:41:11,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 17:41:11,132 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:41:11,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:11,133 INFO L85 PathProgramCache]: Analyzing trace with hash -962867583, now seen corresponding path program 2 times [2022-11-25 17:41:11,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:11,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535683341] [2022-11-25 17:41:11,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:11,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:11,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:41:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:41:11,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:41:11,234 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:41:11,236 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:41:11,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:41:11,242 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:11,247 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:41:11,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:41:11 BoogieIcfgContainer [2022-11-25 17:41:11,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:41:11,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:41:11,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:41:11,358 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:41:11,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:41:04" (3/4) ... [2022-11-25 17:41:11,360 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:41:11,471 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:41:11,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:41:11,472 INFO L158 Benchmark]: Toolchain (without parser) took 8587.73ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 106.8MB in the beginning and 57.0MB in the end (delta: 49.7MB). Peak memory consumption was 114.0MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,472 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:41:11,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.08ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 110.0MB in the end (delta: -3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.53ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,473 INFO L158 Benchmark]: Boogie Preprocessor took 34.95ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,483 INFO L158 Benchmark]: RCFGBuilder took 701.36ms. Allocated memory is still 146.8MB. Free memory was 106.3MB in the beginning and 90.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,484 INFO L158 Benchmark]: TraceAbstraction took 7099.29ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 89.0MB in the beginning and 64.4MB in the end (delta: 24.7MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,484 INFO L158 Benchmark]: Witness Printer took 113.80ms. Allocated memory is still 211.8MB. Free memory was 64.4MB in the beginning and 57.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:41:11,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 111.1MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.08ms. Allocated memory is still 146.8MB. Free memory was 106.8MB in the beginning and 110.0MB in the end (delta: -3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.53ms. Allocated memory is still 146.8MB. Free memory was 110.0MB in the beginning and 107.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.95ms. Allocated memory is still 146.8MB. Free memory was 107.9MB in the beginning and 106.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 701.36ms. Allocated memory is still 146.8MB. Free memory was 106.3MB in the beginning and 90.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7099.29ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 89.0MB in the beginning and 64.4MB in the end (delta: 24.7MB). Peak memory consumption was 92.1MB. Max. memory is 16.1GB. * Witness Printer took 113.80ms. Allocated memory is still 211.8MB. Free memory was 64.4MB in the beginning and 57.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 732]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int pumpRunning = 0; [L535] int systemActive = 1; [L738] int waterLevel = 1; [L739] int methaneLevelCritical = 0; [L832] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L905] int retValue_acc ; [L906] int tmp ; [L910] FCALL select_helpers() [L911] FCALL select_features() [L912] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L912] RET, EXPR valid_product() [L912] tmp = valid_product() [L914] COND TRUE \read(tmp) [L916] FCALL setup() [L917] CALL runTest() [L899] CALL test() [L460] int splverifierCounter ; [L461] int tmp ; [L462] int tmp___0 ; [L463] int tmp___1 ; [L464] int tmp___2 ; [L467] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L469] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L471] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L477] tmp = __VERIFIER_nondet_int() [L479] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L481] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE waterLevel < 2 [L757] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L481] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L487] tmp___0 = __VERIFIER_nondet_int() [L489] 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] [L497] tmp___2 = __VERIFIER_nondet_int() [L499] 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] [L514] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L571] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] COND TRUE ! pumpRunning [L576] CALL, EXPR isHighWaterLevel() [L694] int retValue_acc ; [L695] int tmp ; [L696] int tmp___0 ; [L700] CALL, EXPR isHighWaterSensorDry() [L818] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L821] COND FALSE !(waterLevel < 2) [L825] retValue_acc = 0 [L826] 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] [L700] RET, EXPR isHighWaterSensorDry() [L700] tmp = isHighWaterSensorDry() [L702] COND FALSE !(\read(tmp)) [L705] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L707] retValue_acc = tmp___0 [L708] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L576] RET, EXPR isHighWaterLevel() [L576] tmp = isHighWaterLevel() [L578] COND TRUE \read(tmp) [L580] CALL activatePump() [L625] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L580] RET activatePump() [L615] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L557] RET __utac_acc__Specification4_spec__1() [L514] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L469] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L471] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L514] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L542] COND TRUE \read(pumpRunning) [L544] CALL lowerWaterLevel() [L744] COND TRUE waterLevel > 0 [L745] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L544] RET lowerWaterLevel() [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L600] COND TRUE \read(pumpRunning) [L602] CALL, EXPR isMethaneAlarm() [L638] int retValue_acc ; [L642] CALL, EXPR isMethaneLevelCritical() [L777] int retValue_acc ; [L780] retValue_acc = methaneLevelCritical [L781] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L642] RET, EXPR isMethaneLevelCritical() [L642] retValue_acc = isMethaneLevelCritical() [L644] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L602] RET, EXPR isMethaneAlarm() [L602] tmp = isMethaneAlarm() [L604] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L610] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L571] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L574] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L589] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L610] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND FALSE !(tmp == 0) VAL [\old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L557] RET __utac_acc__Specification4_spec__1() [L514] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L469] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L471] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L477] tmp = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L487] tmp___0 = __VERIFIER_nondet_int() [L489] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L497] tmp___2 = __VERIFIER_nondet_int() [L499] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L514] CALL timeShift() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L542] COND TRUE \read(pumpRunning) [L544] CALL lowerWaterLevel() [L744] COND TRUE waterLevel > 0 [L745] waterLevel = waterLevel - 1 VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L544] RET lowerWaterLevel() [L549] COND TRUE \read(systemActive) [L551] CALL processEnvironment() [L597] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L600] COND TRUE \read(pumpRunning) [L602] CALL, EXPR isMethaneAlarm() [L638] int retValue_acc ; [L642] CALL, EXPR isMethaneLevelCritical() [L777] int retValue_acc ; [L780] retValue_acc = methaneLevelCritical [L781] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L642] RET, EXPR isMethaneLevelCritical() [L642] retValue_acc = isMethaneLevelCritical() [L644] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L602] RET, EXPR isMethaneAlarm() [L602] tmp = isMethaneAlarm() [L604] COND FALSE !(\read(tmp)) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L610] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L571] int tmp ; VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L574] COND FALSE !(! pumpRunning) VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L589] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L610] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L551] RET processEnvironment() [L557] CALL __utac_acc__Specification4_spec__1() [L929] int tmp ; [L930] int tmp___0 ; [L934] CALL, EXPR getWaterLevel() [L809] int retValue_acc ; [L812] retValue_acc = waterLevel [L813] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L934] RET, EXPR getWaterLevel() [L934] tmp = getWaterLevel() [L936] COND TRUE tmp == 0 [L938] CALL, EXPR isPumpRunning() [L649] int retValue_acc ; [L652] retValue_acc = pumpRunning [L653] return (retValue_acc); VAL [\old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L938] RET, EXPR isPumpRunning() [L938] tmp___0 = isPumpRunning() [L940] COND TRUE \read(tmp___0) [L942] CALL __automaton_fail() [L732] reach_error() VAL [\old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1432 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1405 mSDsluCounter, 3171 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2189 mSDsCounter, 373 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1852 IncrementalHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 373 mSolverCounterUnsat, 982 mSDtfsCounter, 1852 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 197 SyntacticMatches, 9 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=539occurred in iteration=9, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 289 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 1108 SizeOfPredicates, 4 NumberOfNonLiveVariables, 276 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 55/74 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! [2022-11-25 17:41:11,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebfd6e5f-e42f-4839-bc36-7a449690e71f/bin/uautomizer-ZsLfNo2U6R/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