./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:51:17,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:51:17,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:51:17,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:51:17,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:51:17,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:51:17,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:51:17,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:51:17,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:51:17,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:51:17,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:51:17,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:51:17,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:51:17,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:51:17,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:51:17,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:51:17,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:51:17,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:51:17,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:51:17,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:51:17,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:51:17,124 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:51:17,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:51:17,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:51:17,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:51:17,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:51:17,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:51:17,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:51:17,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:51:17,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:51:17,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:51:17,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:51:17,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:51:17,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:51:17,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:51:17,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:51:17,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:51:17,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:51:17,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:51:17,135 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:51:17,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:51:17,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 19:51:17,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:51:17,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:51:17,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:51:17,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:51:17,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:51:17,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:51:17,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:51:17,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:51:17,159 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:51:17,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:51:17,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:51:17,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:51:17,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:51:17,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:51:17,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:51:17,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:51:17,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:51:17,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:51:17,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:51:17,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:51:17,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:51:17,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:51:17,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:51:17,163 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:51:17,164 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_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58738f03c291d912b42eb65343509a99f93ac40ab295d49133dc12600f622b8 [2022-12-13 19:51:17,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:51:17,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:51:17,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:51:17,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:51:17,376 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:51:17,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2022-12-13 19:51:19,896 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:51:20,074 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:51:20,075 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2022-12-13 19:51:20,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/data/749c8b78b/cdce8f3d65914143b941599a1e461357/FLAGea5d9b543 [2022-12-13 19:51:20,476 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/data/749c8b78b/cdce8f3d65914143b941599a1e461357 [2022-12-13 19:51:20,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:51:20,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:51:20,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:51:20,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:51:20,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:51:20,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356f50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20, skipping insertion in model container [2022-12-13 19:51:20,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:51:20,523 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:51:20,647 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_e0e88ffd-d226-47b4-8294-8716eda0d6ce/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2022-12-13 19:51:20,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:51:20,692 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:51:20,712 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_e0e88ffd-d226-47b4-8294-8716eda0d6ce/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7390,7403] [2022-12-13 19:51:20,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:51:20,747 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:51:20,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20 WrapperNode [2022-12-13 19:51:20,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:51:20,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:51:20,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:51:20,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:51:20,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,777 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 189 [2022-12-13 19:51:20,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:51:20,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:51:20,778 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:51:20,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:51:20,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,797 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:51:20,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:51:20,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:51:20,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:51:20,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (1/1) ... [2022-12-13 19:51:20,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:51:20,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:51:20,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:51:20,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:51:20,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:51:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 19:51:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 19:51:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 19:51:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 19:51:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 19:51:20,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 19:51:20,866 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 19:51:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 19:51:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 19:51:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 19:51:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 19:51:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 19:51:20,867 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 19:51:20,867 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 19:51:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:51:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 19:51:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 19:51:20,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:51:20,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:51:20,932 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:51:20,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:51:21,166 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:51:21,174 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:51:21,174 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 19:51:21,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:51:21 BoogieIcfgContainer [2022-12-13 19:51:21,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:51:21,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:51:21,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:51:21,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:51:21,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:51:20" (1/3) ... [2022-12-13 19:51:21,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de31f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:51:21, skipping insertion in model container [2022-12-13 19:51:21,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:51:20" (2/3) ... [2022-12-13 19:51:21,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de31f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:51:21, skipping insertion in model container [2022-12-13 19:51:21,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:51:21" (3/3) ... [2022-12-13 19:51:21,183 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2022-12-13 19:51:21,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:51:21,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:51:21,246 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:51:21,251 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;@3cf1e81f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:51:21,251 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 19:51:21,255 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 78 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-13 19:51:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 19:51:21,263 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:21,264 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] [2022-12-13 19:51:21,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:21,269 INFO L85 PathProgramCache]: Analyzing trace with hash 224099000, now seen corresponding path program 1 times [2022-12-13 19:51:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:21,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811029191] [2022-12-13 19:51:21,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:21,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 19:51:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:21,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:21,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811029191] [2022-12-13 19:51:21,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811029191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:21,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:21,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:51:21,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277230484] [2022-12-13 19:51:21,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:21,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:51:21,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:21,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:51:21,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:51:21,463 INFO L87 Difference]: Start difference. First operand has 93 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 78 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:21,489 INFO L93 Difference]: Finished difference Result 178 states and 241 transitions. [2022-12-13 19:51:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:51:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-12-13 19:51:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:21,498 INFO L225 Difference]: With dead ends: 178 [2022-12-13 19:51:21,498 INFO L226 Difference]: Without dead ends: 84 [2022-12-13 19:51:21,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:51:21,503 INFO L413 NwaCegarLoop]: 117 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, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:21,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:51:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-12-13 19:51:21,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-12-13 19:51:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 70 states have internal predecessors, (81), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 19:51:21,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 108 transitions. [2022-12-13 19:51:21,537 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 108 transitions. Word has length 23 [2022-12-13 19:51:21,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:21,538 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 108 transitions. [2022-12-13 19:51:21,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 108 transitions. [2022-12-13 19:51:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 19:51:21,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:21,540 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] [2022-12-13 19:51:21,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:51:21,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:21,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2095441880, now seen corresponding path program 1 times [2022-12-13 19:51:21,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:21,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538793705] [2022-12-13 19:51:21,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:21,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 19:51:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:21,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:21,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538793705] [2022-12-13 19:51:21,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538793705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:21,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:21,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:51:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174363297] [2022-12-13 19:51:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:21,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:51:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:51:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:51:21,619 INFO L87 Difference]: Start difference. First operand 84 states and 108 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:21,633 INFO L93 Difference]: Finished difference Result 129 states and 165 transitions. [2022-12-13 19:51:21,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:51:21,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-12-13 19:51:21,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:21,635 INFO L225 Difference]: With dead ends: 129 [2022-12-13 19:51:21,635 INFO L226 Difference]: Without dead ends: 75 [2022-12-13 19:51:21,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:51:21,638 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 17 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:21,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 168 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:51:21,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-12-13 19:51:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-12-13 19:51:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 64 states have internal predecessors, (74), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-13 19:51:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-12-13 19:51:21,647 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 24 [2022-12-13 19:51:21,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:21,647 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-12-13 19:51:21,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,647 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-12-13 19:51:21,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 19:51:21,648 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:21,648 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] [2022-12-13 19:51:21,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:51:21,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:21,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:21,649 INFO L85 PathProgramCache]: Analyzing trace with hash 883410657, now seen corresponding path program 1 times [2022-12-13 19:51:21,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:21,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256261862] [2022-12-13 19:51:21,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:51:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:21,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:21,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256261862] [2022-12-13 19:51:21,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256261862] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:21,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:21,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:51:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869102291] [2022-12-13 19:51:21,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:21,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:51:21,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:21,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:51:21,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:51:21,717 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:21,753 INFO L93 Difference]: Finished difference Result 209 states and 273 transitions. [2022-12-13 19:51:21,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:51:21,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-12-13 19:51:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:21,757 INFO L225 Difference]: With dead ends: 209 [2022-12-13 19:51:21,757 INFO L226 Difference]: Without dead ends: 141 [2022-12-13 19:51:21,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:51:21,759 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:21,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 201 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:51:21,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-13 19:51:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2022-12-13 19:51:21,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 116 states have internal predecessors, (136), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-13 19:51:21,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 180 transitions. [2022-12-13 19:51:21,776 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 180 transitions. Word has length 29 [2022-12-13 19:51:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:21,776 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 180 transitions. [2022-12-13 19:51:21,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 19:51:21,776 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 180 transitions. [2022-12-13 19:51:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 19:51:21,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:21,777 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] [2022-12-13 19:51:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:51:21,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:21,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:21,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1458245104, now seen corresponding path program 1 times [2022-12-13 19:51:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:21,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053216684] [2022-12-13 19:51:21,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 19:51:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:21,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:21,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053216684] [2022-12-13 19:51:21,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053216684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:21,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:21,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:51:21,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523013567] [2022-12-13 19:51:21,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:21,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:51:21,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:51:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:51:21,871 INFO L87 Difference]: Start difference. First operand 138 states and 180 transitions. Second operand has 5 states, 5 states have (on average 5.8) 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) [2022-12-13 19:51:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:21,948 INFO L93 Difference]: Finished difference Result 364 states and 487 transitions. [2022-12-13 19:51:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:51:21,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) 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 [2022-12-13 19:51:21,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:21,950 INFO L225 Difference]: With dead ends: 364 [2022-12-13 19:51:21,951 INFO L226 Difference]: Without dead ends: 233 [2022-12-13 19:51:21,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:51:21,953 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 58 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:21,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 373 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:51:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-12-13 19:51:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 220. [2022-12-13 19:51:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.3067484662576687) internal successors, (213), 178 states have internal predecessors, (213), 30 states have call successors, (30), 26 states have call predecessors, (30), 26 states have return successors, (38), 27 states have call predecessors, (38), 30 states have call successors, (38) [2022-12-13 19:51:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 281 transitions. [2022-12-13 19:51:21,986 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 281 transitions. Word has length 32 [2022-12-13 19:51:21,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:21,987 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 281 transitions. [2022-12-13 19:51:21,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) 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) [2022-12-13 19:51:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 281 transitions. [2022-12-13 19:51:21,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:51:21,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:21,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:21,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:51:21,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:21,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:21,990 INFO L85 PathProgramCache]: Analyzing trace with hash -698554300, now seen corresponding path program 1 times [2022-12-13 19:51:21,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:21,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414428649] [2022-12-13 19:51:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:21,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:51:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:51:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:22,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:22,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414428649] [2022-12-13 19:51:22,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414428649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:22,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:22,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 19:51:22,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595210551] [2022-12-13 19:51:22,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:22,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:51:22,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:22,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:51:22,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:51:22,113 INFO L87 Difference]: Start difference. First operand 220 states and 281 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:22,262 INFO L93 Difference]: Finished difference Result 491 states and 636 transitions. [2022-12-13 19:51:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:51:22,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-12-13 19:51:22,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:22,265 INFO L225 Difference]: With dead ends: 491 [2022-12-13 19:51:22,265 INFO L226 Difference]: Without dead ends: 278 [2022-12-13 19:51:22,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:51:22,266 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 60 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:22,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 334 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:51:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-12-13 19:51:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2022-12-13 19:51:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 203 states have (on average 1.2758620689655173) internal successors, (259), 218 states have internal predecessors, (259), 34 states have call successors, (34), 26 states have call predecessors, (34), 32 states have return successors, (48), 35 states have call predecessors, (48), 34 states have call successors, (48) [2022-12-13 19:51:22,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 341 transitions. [2022-12-13 19:51:22,287 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 341 transitions. Word has length 43 [2022-12-13 19:51:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:22,287 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 341 transitions. [2022-12-13 19:51:22,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 341 transitions. [2022-12-13 19:51:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:51:22,289 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:22,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:22,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:51:22,289 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:22,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1602268290, now seen corresponding path program 1 times [2022-12-13 19:51:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:22,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321317701] [2022-12-13 19:51:22,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:22,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:51:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:51:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:22,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:22,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321317701] [2022-12-13 19:51:22,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321317701] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:22,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:22,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:51:22,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291489956] [2022-12-13 19:51:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:22,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:51:22,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:22,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:51:22,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:51:22,358 INFO L87 Difference]: Start difference. First operand 270 states and 341 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:22,469 INFO L93 Difference]: Finished difference Result 551 states and 714 transitions. [2022-12-13 19:51:22,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:51:22,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-12-13 19:51:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:22,473 INFO L225 Difference]: With dead ends: 551 [2022-12-13 19:51:22,473 INFO L226 Difference]: Without dead ends: 288 [2022-12-13 19:51:22,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:51:22,475 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 61 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:22,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 263 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:51:22,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-12-13 19:51:22,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 274. [2022-12-13 19:51:22,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 207 states have (on average 1.2705314009661837) internal successors, (263), 222 states have internal predecessors, (263), 34 states have call successors, (34), 26 states have call predecessors, (34), 32 states have return successors, (48), 35 states have call predecessors, (48), 34 states have call successors, (48) [2022-12-13 19:51:22,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 345 transitions. [2022-12-13 19:51:22,493 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 345 transitions. Word has length 43 [2022-12-13 19:51:22,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:22,494 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 345 transitions. [2022-12-13 19:51:22,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 345 transitions. [2022-12-13 19:51:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 19:51:22,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:22,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:22,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:51:22,495 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:22,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:22,495 INFO L85 PathProgramCache]: Analyzing trace with hash 784619840, now seen corresponding path program 1 times [2022-12-13 19:51:22,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:22,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670686281] [2022-12-13 19:51:22,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:22,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:51:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:51:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:22,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:22,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670686281] [2022-12-13 19:51:22,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670686281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:22,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:22,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:51:22,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71506895] [2022-12-13 19:51:22,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:22,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:51:22,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:22,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:51:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:51:22,553 INFO L87 Difference]: Start difference. First operand 274 states and 345 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:22,755 INFO L93 Difference]: Finished difference Result 792 states and 1037 transitions. [2022-12-13 19:51:22,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:51:22,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-12-13 19:51:22,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:22,758 INFO L225 Difference]: With dead ends: 792 [2022-12-13 19:51:22,758 INFO L226 Difference]: Without dead ends: 525 [2022-12-13 19:51:22,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:51:22,759 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 208 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:22,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 296 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:51:22,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2022-12-13 19:51:22,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 518. [2022-12-13 19:51:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 391 states have (on average 1.2429667519181586) internal successors, (486), 415 states have internal predecessors, (486), 65 states have call successors, (65), 59 states have call predecessors, (65), 61 states have return successors, (103), 64 states have call predecessors, (103), 65 states have call successors, (103) [2022-12-13 19:51:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 654 transitions. [2022-12-13 19:51:22,802 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 654 transitions. Word has length 43 [2022-12-13 19:51:22,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:22,802 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 654 transitions. [2022-12-13 19:51:22,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 19:51:22,802 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 654 transitions. [2022-12-13 19:51:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 19:51:22,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:22,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:22,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:51:22,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:22,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash 2122122074, now seen corresponding path program 1 times [2022-12-13 19:51:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:22,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949433502] [2022-12-13 19:51:22,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:22,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 19:51:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:51:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 19:51:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:51:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:51:22,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:51:22,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949433502] [2022-12-13 19:51:22,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949433502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:51:22,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:51:22,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:51:22,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650653298] [2022-12-13 19:51:22,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:51:22,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:51:22,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:51:22,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:51:22,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:51:22,920 INFO L87 Difference]: Start difference. First operand 518 states and 654 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:51:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:51:23,462 INFO L93 Difference]: Finished difference Result 1814 states and 2386 transitions. [2022-12-13 19:51:23,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 19:51:23,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-12-13 19:51:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:51:23,469 INFO L225 Difference]: With dead ends: 1814 [2022-12-13 19:51:23,470 INFO L226 Difference]: Without dead ends: 1303 [2022-12-13 19:51:23,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-12-13 19:51:23,472 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 300 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 19:51:23,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 374 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 19:51:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2022-12-13 19:51:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1195. [2022-12-13 19:51:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 890 states have (on average 1.208988764044944) internal successors, (1076), 953 states have internal predecessors, (1076), 162 states have call successors, (162), 118 states have call predecessors, (162), 142 states have return successors, (288), 164 states have call predecessors, (288), 162 states have call successors, (288) [2022-12-13 19:51:23,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1526 transitions. [2022-12-13 19:51:23,542 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1526 transitions. Word has length 47 [2022-12-13 19:51:23,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:51:23,543 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1526 transitions. [2022-12-13 19:51:23,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 19:51:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1526 transitions. [2022-12-13 19:51:23,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-12-13 19:51:23,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:51:23,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:23,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:51:23,544 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:51:23,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:51:23,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1992473686, now seen corresponding path program 1 times [2022-12-13 19:51:23,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:51:23,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718897719] [2022-12-13 19:51:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:51:23,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:51:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:51:23,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:51:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:51:23,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:51:23,576 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:51:23,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 19:51:23,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:51:23,581 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:51:23,584 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:51:23,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:51:23 BoogieIcfgContainer [2022-12-13 19:51:23,611 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:51:23,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:51:23,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:51:23,611 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:51:23,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:51:21" (3/4) ... [2022-12-13 19:51:23,613 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 19:51:23,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:51:23,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:51:23,673 INFO L158 Benchmark]: Toolchain (without parser) took 3191.17ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 99.6MB in the beginning and 134.4MB in the end (delta: -34.8MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,673 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:51:23,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.88ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 80.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.33ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,674 INFO L158 Benchmark]: Boogie Preprocessor took 23.00ms. Allocated memory is still 138.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,674 INFO L158 Benchmark]: RCFGBuilder took 374.50ms. Allocated memory is still 138.4MB. Free memory was 77.2MB in the beginning and 61.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,674 INFO L158 Benchmark]: TraceAbstraction took 2432.56ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 48.1MB in the end (delta: 12.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,674 INFO L158 Benchmark]: Witness Printer took 61.38ms. Allocated memory is still 167.8MB. Free memory was 48.1MB in the beginning and 134.4MB in the end (delta: -86.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 19:51:23,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 110.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.88ms. Allocated memory is still 138.4MB. Free memory was 99.6MB in the beginning and 80.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.33ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 78.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.00ms. Allocated memory is still 138.4MB. Free memory was 78.8MB in the beginning and 77.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 374.50ms. Allocated memory is still 138.4MB. Free memory was 77.2MB in the beginning and 61.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2432.56ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 60.4MB in the beginning and 48.1MB in the end (delta: 12.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * Witness Printer took 61.38ms. Allocated memory is still 167.8MB. Free memory was 48.1MB in the beginning and 134.4MB in the end (delta: -86.3MB). 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: 500]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L362] int cleanupTimeShifts = 4; [L674] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L872] int waterLevel = 1; [L873] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L438] int retValue_acc ; [L439] int tmp ; [L443] FCALL select_helpers() [L444] FCALL select_features() [L445] CALL, EXPR valid_product() [L487] int retValue_acc ; [L490] retValue_acc = 1 [L491] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L445] RET, EXPR valid_product() [L445] tmp = valid_product() [L447] COND TRUE \read(tmp) [L449] FCALL setup() [L450] CALL runTest() [L429] CALL test() [L267] int splverifierCounter ; [L268] int tmp ; [L269] int tmp___0 ; [L270] int tmp___1 ; [L271] int tmp___2 ; [L274] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L276] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L278] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L284] tmp = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L288] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L890] COND TRUE waterLevel < 2 [L891] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L288] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L294] tmp___0 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L298] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L902] COND FALSE !(\read(methaneLevelCritical)) [L905] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L298] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=-1, waterLevel=2] [L304] tmp___2 = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp___2) [L308] CALL startSystem() [L258] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L308] RET startSystem() [L323] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L69] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L76] COND TRUE \read(systemActive) [L78] CALL processEnvironment() [L124] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L127] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L142] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L98] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L101] COND TRUE ! pumpRunning [L103] CALL, EXPR isHighWaterLevel() [L221] int retValue_acc ; [L222] int tmp ; [L223] int tmp___0 ; [L227] CALL, EXPR isHighWaterSensorDry() [L952] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L955] COND FALSE !(waterLevel < 2) [L959] retValue_acc = 0 [L960] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L227] RET, EXPR isHighWaterSensorDry() [L227] tmp = isHighWaterSensorDry() [L229] COND FALSE !(\read(tmp)) [L232] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L234] retValue_acc = tmp___0 [L235] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L103] RET, EXPR isHighWaterLevel() [L103] tmp = isHighWaterLevel() [L105] COND TRUE \read(tmp) [L107] CALL activatePump() [L152] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L107] RET activatePump() [L142] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L78] RET processEnvironment() [L84] CALL __utac_acc__Specification1_spec__1() [L337] int tmp ; [L338] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L342] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L911] int retValue_acc ; [L914] retValue_acc = methaneLevelCritical [L915] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L342] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L342] tmp = isMethaneLevelCritical() [L344] COND TRUE \read(tmp) [L346] CALL, EXPR isPumpRunning() [L176] int retValue_acc ; [L179] retValue_acc = pumpRunning [L180] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L346] RET, EXPR isPumpRunning() [L346] tmp___0 = isPumpRunning() [L348] COND TRUE \read(tmp___0) [L350] CALL __automaton_fail() [L500] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 819 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 792 mSDsluCounter, 2126 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1338 mSDsCounter, 233 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 833 IncrementalHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 233 mSolverCounterUnsat, 788 mSDtfsCounter, 833 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1195occurred in iteration=8, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 153 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:51:23,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0e88ffd-d226-47b4-8294-8716eda0d6ce/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE