./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa --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 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 00:15:53,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 00:15:53,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 00:15:53,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 00:15:53,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 00:15:53,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 00:15:53,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 00:15:53,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 00:15:53,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 00:15:53,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 00:15:53,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 00:15:53,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 00:15:53,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 00:15:53,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 00:15:53,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 00:15:53,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 00:15:53,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 00:15:53,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 00:15:53,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 00:15:53,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 00:15:53,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 00:15:53,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 00:15:53,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 00:15:53,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 00:15:53,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 00:15:53,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 00:15:53,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 00:15:53,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 00:15:53,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 00:15:53,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 00:15:53,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 00:15:53,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 00:15:53,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 00:15:53,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 00:15:53,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 00:15:53,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 00:15:53,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 00:15:53,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 00:15:53,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 00:15:53,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 00:15:53,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 00:15:53,948 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 00:15:53,971 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 00:15:53,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 00:15:53,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 00:15:53,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 00:15:53,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 00:15:53,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 00:15:53,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 00:15:53,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 00:15:53,973 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 00:15:53,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 00:15:53,973 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 00:15:53,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 00:15:53,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 00:15:53,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 00:15:53,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:15:53,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 00:15:53,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 00:15:53,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 [2021-12-07 00:15:54,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 00:15:54,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 00:15:54,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 00:15:54,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 00:15:54,158 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 00:15:54,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-12-07 00:15:54,202 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/data/4516789b8/43ab4cbb61644f35abbb90e07f0f6e58/FLAG9cdbee54d [2021-12-07 00:15:54,611 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 00:15:54,612 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2021-12-07 00:15:54,621 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/data/4516789b8/43ab4cbb61644f35abbb90e07f0f6e58/FLAG9cdbee54d [2021-12-07 00:15:54,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/data/4516789b8/43ab4cbb61644f35abbb90e07f0f6e58 [2021-12-07 00:15:54,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 00:15:54,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 00:15:54,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 00:15:54,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 00:15:54,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 00:15:54,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d2210e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54, skipping insertion in model container [2021-12-07 00:15:54,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 00:15:54,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 00:15:54,774 WARN L230 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_059b700c-4267-4e43-bfb5-a3e57b27f913/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2021-12-07 00:15:54,855 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:15:54,862 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 00:15:54,872 WARN L230 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_059b700c-4267-4e43-bfb5-a3e57b27f913/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2021-12-07 00:15:54,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 00:15:54,928 INFO L208 MainTranslator]: Completed translation [2021-12-07 00:15:54,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54 WrapperNode [2021-12-07 00:15:54,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 00:15:54,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 00:15:54,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 00:15:54,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 00:15:54,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,972 INFO L137 Inliner]: procedures = 54, calls = 155, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 248 [2021-12-07 00:15:54,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 00:15:54,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 00:15:54,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 00:15:54,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 00:15:54,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:54,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 00:15:54,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 00:15:54,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 00:15:54,998 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 00:15:54,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (1/1) ... [2021-12-07 00:15:55,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 00:15:55,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 00:15:55,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 00:15:55,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 00:15:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 00:15:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-07 00:15:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-07 00:15:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-07 00:15:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-07 00:15:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-07 00:15:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-07 00:15:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-07 00:15:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-07 00:15:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-07 00:15:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2021-12-07 00:15:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-07 00:15:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-07 00:15:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 00:15:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-07 00:15:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-07 00:15:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 00:15:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 00:15:55,124 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 00:15:55,125 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 00:15:55,365 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 00:15:55,370 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 00:15:55,370 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-07 00:15:55,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:15:55 BoogieIcfgContainer [2021-12-07 00:15:55,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 00:15:55,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 00:15:55,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 00:15:55,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 00:15:55,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:15:54" (1/3) ... [2021-12-07 00:15:55,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730efe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:15:55, skipping insertion in model container [2021-12-07 00:15:55,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:15:54" (2/3) ... [2021-12-07 00:15:55,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730efe6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:15:55, skipping insertion in model container [2021-12-07 00:15:55,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:15:55" (3/3) ... [2021-12-07 00:15:55,377 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2021-12-07 00:15:55,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 00:15:55,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 00:15:55,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 00:15:55,420 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 00:15:55,420 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 00:15:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-07 00:15:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-07 00:15:55,438 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:55,439 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:15:55,439 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:55,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:55,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1885367060, now seen corresponding path program 1 times [2021-12-07 00:15:55,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:55,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243568391] [2021-12-07 00:15:55,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:55,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:55,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:55,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:55,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243568391] [2021-12-07 00:15:55,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243568391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:55,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:55,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:15:55,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903702036] [2021-12-07 00:15:55,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:55,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 00:15:55,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:55,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 00:15:55,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:15:55,618 INFO L87 Difference]: Start difference. First operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:55,642 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2021-12-07 00:15:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 00:15:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-07 00:15:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:55,650 INFO L225 Difference]: With dead ends: 164 [2021-12-07 00:15:55,650 INFO L226 Difference]: Without dead ends: 77 [2021-12-07 00:15:55,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 00:15:55,656 INFO L933 BasicCegarLoop]: 109 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, 109 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 [2021-12-07 00:15:55,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:15:55,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-12-07 00:15:55,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-12-07 00:15:55,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 65 states have internal predecessors, (75), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-07 00:15:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2021-12-07 00:15:55,690 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2021-12-07 00:15:55,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:55,690 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2021-12-07 00:15:55,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2021-12-07 00:15:55,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-07 00:15:55,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:55,692 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:15:55,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 00:15:55,693 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:55,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:55,693 INFO L85 PathProgramCache]: Analyzing trace with hash -633787630, now seen corresponding path program 1 times [2021-12-07 00:15:55,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:55,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101356707] [2021-12-07 00:15:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:55,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:55,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:55,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101356707] [2021-12-07 00:15:55,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101356707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:55,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:55,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-07 00:15:55,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114708514] [2021-12-07 00:15:55,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:55,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:15:55,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:55,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:15:55,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:15:55,755 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:55,766 INFO L93 Difference]: Finished difference Result 116 states and 150 transitions. [2021-12-07 00:15:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:15:55,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-07 00:15:55,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:55,768 INFO L225 Difference]: With dead ends: 116 [2021-12-07 00:15:55,768 INFO L226 Difference]: Without dead ends: 68 [2021-12-07 00:15:55,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:15:55,770 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 16 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 153 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 [2021-12-07 00:15:55,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:15:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-07 00:15:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-12-07 00:15:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 59 states have internal predecessors, (68), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-07 00:15:55,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2021-12-07 00:15:55,779 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2021-12-07 00:15:55,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:55,780 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2021-12-07 00:15:55,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:55,780 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2021-12-07 00:15:55,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-07 00:15:55,781 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:55,781 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:55,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 00:15:55,781 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1735953232, now seen corresponding path program 1 times [2021-12-07 00:15:55,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:55,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492653122] [2021-12-07 00:15:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:55,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:55,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:55,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:55,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492653122] [2021-12-07 00:15:55,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492653122] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:55,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:55,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 00:15:55,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451351010] [2021-12-07 00:15:55,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:55,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:15:55,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:15:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:15:55,849 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:55,980 INFO L93 Difference]: Finished difference Result 227 states and 301 transitions. [2021-12-07 00:15:55,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:15:55,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-07 00:15:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:55,983 INFO L225 Difference]: With dead ends: 227 [2021-12-07 00:15:55,983 INFO L226 Difference]: Without dead ends: 166 [2021-12-07 00:15:55,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-07 00:15:55,985 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 234 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:55,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 388 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-07 00:15:55,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-12-07 00:15:56,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2021-12-07 00:15:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 137 states have internal predecessors, (163), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (25), 14 states have call predecessors, (25), 24 states have call successors, (25) [2021-12-07 00:15:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2021-12-07 00:15:56,006 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 24 [2021-12-07 00:15:56,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:56,006 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2021-12-07 00:15:56,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2021-12-07 00:15:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-07 00:15:56,008 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:56,008 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:56,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-07 00:15:56,008 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:56,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:56,009 INFO L85 PathProgramCache]: Analyzing trace with hash -908810234, now seen corresponding path program 1 times [2021-12-07 00:15:56,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:56,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147271681] [2021-12-07 00:15:56,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:56,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:56,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:56,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147271681] [2021-12-07 00:15:56,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147271681] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:56,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:56,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:15:56,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562048796] [2021-12-07 00:15:56,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:56,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 00:15:56,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:56,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 00:15:56,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:15:56,060 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:56,109 INFO L93 Difference]: Finished difference Result 449 states and 617 transitions. [2021-12-07 00:15:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:15:56,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-07 00:15:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:56,115 INFO L225 Difference]: With dead ends: 449 [2021-12-07 00:15:56,115 INFO L226 Difference]: Without dead ends: 296 [2021-12-07 00:15:56,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-07 00:15:56,118 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 60 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:56,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 353 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:15:56,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-12-07 00:15:56,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2021-12-07 00:15:56,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 218 states have (on average 1.348623853211009) internal successors, (294), 250 states have internal predecessors, (294), 48 states have call successors, (48), 32 states have call predecessors, (48), 29 states have return successors, (54), 25 states have call predecessors, (54), 48 states have call successors, (54) [2021-12-07 00:15:56,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 396 transitions. [2021-12-07 00:15:56,168 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 396 transitions. Word has length 28 [2021-12-07 00:15:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:56,168 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 396 transitions. [2021-12-07 00:15:56,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,168 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 396 transitions. [2021-12-07 00:15:56,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-07 00:15:56,171 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:56,171 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:56,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-07 00:15:56,172 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:56,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -89703733, now seen corresponding path program 1 times [2021-12-07 00:15:56,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:56,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489608438] [2021-12-07 00:15:56,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:56,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:56,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:56,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489608438] [2021-12-07 00:15:56,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489608438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:56,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:56,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 00:15:56,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987342678] [2021-12-07 00:15:56,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:56,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-07 00:15:56,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:56,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-07 00:15:56,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:15:56,210 INFO L87 Difference]: Start difference. First operand 296 states and 396 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:56,231 INFO L93 Difference]: Finished difference Result 504 states and 684 transitions. [2021-12-07 00:15:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-07 00:15:56,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-12-07 00:15:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:56,233 INFO L225 Difference]: With dead ends: 504 [2021-12-07 00:15:56,234 INFO L226 Difference]: Without dead ends: 215 [2021-12-07 00:15:56,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-07 00:15:56,236 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:56,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:15:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-12-07 00:15:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2021-12-07 00:15:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 171 states have internal predecessors, (202), 26 states have call successors, (26), 26 states have call predecessors, (26), 23 states have return successors, (28), 23 states have call predecessors, (28), 26 states have call successors, (28) [2021-12-07 00:15:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 256 transitions. [2021-12-07 00:15:56,253 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 256 transitions. Word has length 30 [2021-12-07 00:15:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:56,253 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 256 transitions. [2021-12-07 00:15:56,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 256 transitions. [2021-12-07 00:15:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-07 00:15:56,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:15:56,255 INFO L514 BasicCegarLoop]: 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] [2021-12-07 00:15:56,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:15:56,255 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:15:56,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:15:56,255 INFO L85 PathProgramCache]: Analyzing trace with hash 520035500, now seen corresponding path program 1 times [2021-12-07 00:15:56,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:15:56,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732561792] [2021-12-07 00:15:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:15:56,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:15:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-07 00:15:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:15:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:15:56,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:15:56,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732561792] [2021-12-07 00:15:56,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732561792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:15:56,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:15:56,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-07 00:15:56,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388434541] [2021-12-07 00:15:56,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:15:56,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 00:15:56,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:15:56,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 00:15:56,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 00:15:56,307 INFO L87 Difference]: Start difference. First operand 211 states and 256 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:15:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:15:56,364 INFO L93 Difference]: Finished difference Result 226 states and 272 transitions. [2021-12-07 00:15:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 00:15:56,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-12-07 00:15:56,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:15:56,365 INFO L225 Difference]: With dead ends: 226 [2021-12-07 00:15:56,365 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 00:15:56,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-07 00:15:56,367 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 53 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 00:15:56,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 154 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 00:15:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 00:15:56,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 00:15:56,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 00:15:56,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 00:15:56,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2021-12-07 00:15:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:15:56,368 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 00:15:56,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-07 00:15:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 00:15:56,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 00:15:56,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 00:15:56,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-07 00:15:56,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 00:15:56,796 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 728 735) the Hoare annotation is: true [2021-12-07 00:15:56,796 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 728 735) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 728 735) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 661 667) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 661 667) the Hoare annotation is: true [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point L462-1(lines 458 469) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 458 469) the Hoare annotation is: true [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point L865(line 865) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 854 883) no Hoare annotation was computed. [2021-12-07 00:15:56,797 INFO L861 garLoopResultBuilder]: At program point L864-2(lines 864 878) the Hoare annotation is: true [2021-12-07 00:15:56,797 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 854 883) the Hoare annotation is: true [2021-12-07 00:15:56,797 INFO L861 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: true [2021-12-07 00:15:56,797 INFO L858 garLoopResultBuilder]: For program point L860-1(line 860) no Hoare annotation was computed. [2021-12-07 00:15:56,798 INFO L861 garLoopResultBuilder]: At program point L879(lines 854 883) the Hoare annotation is: true [2021-12-07 00:15:56,798 INFO L858 garLoopResultBuilder]: For program point L875(line 875) no Hoare annotation was computed. [2021-12-07 00:15:56,798 INFO L858 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2021-12-07 00:15:56,798 INFO L861 garLoopResultBuilder]: At program point L868-1(lines 868 872) the Hoare annotation is: true [2021-12-07 00:15:56,798 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 637 660) no Hoare annotation was computed. [2021-12-07 00:15:56,798 INFO L854 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,798 INFO L854 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,798 INFO L854 garLoopResultBuilder]: At program point L507(lines 502 510) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2021-12-07 00:15:56,799 INFO L854 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2021-12-07 00:15:56,799 INFO L854 garLoopResultBuilder]: At program point L714-1(lines 695 719) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2021-12-07 00:15:56,799 INFO L854 garLoopResultBuilder]: At program point L743(lines 736 746) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,799 INFO L858 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2021-12-07 00:15:56,799 INFO L854 garLoopResultBuilder]: At program point L475(lines 470 478) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,799 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2021-12-07 00:15:56,799 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-12-07 00:15:56,799 INFO L854 garLoopResultBuilder]: At program point L438-2(lines 434 445) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,800 INFO L854 garLoopResultBuilder]: At program point L752(lines 747 755) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2021-12-07 00:15:56,800 INFO L854 garLoopResultBuilder]: At program point L835-1(lines 827 851) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point L641-1(lines 640 659) no Hoare annotation was computed. [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point L703(lines 703 711) no Hoare annotation was computed. [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point L699(lines 699 716) no Hoare annotation was computed. [2021-12-07 00:15:56,800 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2021-12-07 00:15:56,800 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 637 660) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2021-12-07 00:15:56,800 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 637 660) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L854 garLoopResultBuilder]: At program point L539(lines 535 541) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:15:56,801 INFO L861 garLoopResultBuilder]: At program point L944(lines 925 947) the Hoare annotation is: true [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point L573(lines 572 619) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L858 garLoopResultBuilder]: For program point L602(lines 602 615) no Hoare annotation was computed. [2021-12-07 00:15:56,801 INFO L854 garLoopResultBuilder]: At program point L594(line 594) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:15:56,801 INFO L854 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: false [2021-12-07 00:15:56,802 INFO L854 garLoopResultBuilder]: At program point L912(lines 908 914) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)) [2021-12-07 00:15:56,802 INFO L861 garLoopResultBuilder]: At program point L623(lines 562 627) the Hoare annotation is: true [2021-12-07 00:15:56,802 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 588) no Hoare annotation was computed. [2021-12-07 00:15:56,802 INFO L858 garLoopResultBuilder]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2021-12-07 00:15:56,802 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 00:15:56,802 INFO L858 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2021-12-07 00:15:56,802 INFO L854 garLoopResultBuilder]: At program point L620(lines 571 621) the Hoare annotation is: false [2021-12-07 00:15:56,802 INFO L854 garLoopResultBuilder]: At program point L554(lines 549 557) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:15:56,803 INFO L854 garLoopResultBuilder]: At program point L546(lines 542 548) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-07 00:15:56,803 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 614) no Hoare annotation was computed. [2021-12-07 00:15:56,803 INFO L854 garLoopResultBuilder]: At program point L608-2(lines 602 615) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:15:56,803 INFO L861 garLoopResultBuilder]: At program point L922(lines 915 924) the Hoare annotation is: true [2021-12-07 00:15:56,803 INFO L854 garLoopResultBuilder]: At program point L823(lines 811 825) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:15:56,803 INFO L858 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2021-12-07 00:15:56,803 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 592 598) no Hoare annotation was computed. [2021-12-07 00:15:56,803 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 821) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L815-1(lines 815 821) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L854 garLoopResultBuilder]: At program point L617(lines 572 619) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:15:56,804 INFO L854 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L935(lines 935 942) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L935-2(lines 935 942) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L450-1(lines 446 457) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 446 457) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 690) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L801(lines 801 805) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L858 garLoopResultBuilder]: For program point L801-2(lines 801 805) no Hoare annotation was computed. [2021-12-07 00:15:56,804 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 669 693) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,805 INFO L854 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,805 INFO L858 garLoopResultBuilder]: For program point L688-1(lines 669 693) no Hoare annotation was computed. [2021-12-07 00:15:56,805 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 669 693) no Hoare annotation was computed. [2021-12-07 00:15:56,805 INFO L854 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,805 INFO L854 garLoopResultBuilder]: At program point L807(lines 792 810) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,805 INFO L854 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,805 INFO L858 garLoopResultBuilder]: For program point L677(lines 677 685) no Hoare annotation was computed. [2021-12-07 00:15:56,805 INFO L854 garLoopResultBuilder]: At program point L516(lines 511 519) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2021-12-07 00:15:56,808 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-07 00:15:56,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 00:15:56,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:15:56 BoogieIcfgContainer [2021-12-07 00:15:56,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 00:15:56,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 00:15:56,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 00:15:56,828 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 00:15:56,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:15:55" (3/4) ... [2021-12-07 00:15:56,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 00:15:56,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-07 00:15:56,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-07 00:15:56,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-07 00:15:56,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-07 00:15:56,837 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-07 00:15:56,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-07 00:15:56,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2021-12-07 00:15:56,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2021-12-07 00:15:56,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-07 00:15:56,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-07 00:15:56,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-07 00:15:56,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 00:15:56,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:15:56,846 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 00:15:56,862 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-12-07 00:15:56,863 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2021-12-07 00:15:56,863 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:15:56,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2021-12-07 00:15:56,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2021-12-07 00:15:56,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2021-12-07 00:15:56,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2021-12-07 00:15:56,892 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 00:15:56,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 00:15:56,893 INFO L158 Benchmark]: Toolchain (without parser) took 2259.61ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 88.8MB in the beginning and 90.3MB in the end (delta: -1.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,894 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 00:15:56,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.03ms. Allocated memory is still 111.1MB. Free memory was 88.5MB in the beginning and 70.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.26ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 67.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,895 INFO L158 Benchmark]: Boogie Preprocessor took 24.01ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,895 INFO L158 Benchmark]: RCFGBuilder took 374.59ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 80.6MB in the end (delta: -14.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,895 INFO L158 Benchmark]: TraceAbstraction took 1454.02ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 79.8MB in the beginning and 96.7MB in the end (delta: -16.9MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,896 INFO L158 Benchmark]: Witness Printer took 65.14ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 90.3MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-07 00:15:56,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 77.6MB. Free memory is still 50.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.03ms. Allocated memory is still 111.1MB. Free memory was 88.5MB in the beginning and 70.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.26ms. Allocated memory is still 111.1MB. Free memory was 70.0MB in the beginning and 67.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.01ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 374.59ms. Allocated memory is still 111.1MB. Free memory was 65.8MB in the beginning and 80.6MB in the end (delta: -14.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1454.02ms. Allocated memory was 111.1MB in the beginning and 136.3MB in the end (delta: 25.2MB). Free memory was 79.8MB in the beginning and 96.7MB in the end (delta: -16.9MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Witness Printer took 65.14ms. Allocated memory is still 136.3MB. Free memory was 96.7MB in the beginning and 90.3MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 401 mSDsluCounter, 1210 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 714 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 496 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 493 PreInvPairs, 559 NumberOfFragments, 306 HoareAnnotationTreeSize, 493 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 41 FomulaSimplificationsInter, 1992 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 811]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 915]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 736]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2021-12-07 00:15:56,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_059b700c-4267-4e43-bfb5-a3e57b27f913/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE