./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ --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 fff07e5b9817da9e6fd154070162cff001ebe527349ae31a2f1e574ef0fb9f98 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:38:05,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:38:05,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:38:05,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:38:05,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:38:05,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:38:05,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:38:05,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:38:05,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:38:05,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:38:05,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:38:05,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:38:05,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:38:05,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:38:05,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:38:05,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:38:05,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:38:05,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:38:05,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:38:05,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:38:05,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:38:05,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:38:05,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:38:05,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:38:05,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:38:05,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:38:05,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:38:05,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:38:05,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:38:05,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:38:05,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:38:05,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:38:05,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:38:05,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:38:05,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:38:05,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:38:05,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:38:05,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:38:05,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:38:05,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:38:05,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:38:05,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:38:05,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:38:05,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:38:05,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:38:05,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:38:05,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:38:05,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:38:05,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:38:05,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:38:05,999 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:38:05,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:38:06,001 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:38:06,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:38:06,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:38:06,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:38:06,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:38:06,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:38:06,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:38:06,002 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:38:06,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:38:06,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:38:06,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:38:06,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:38:06,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:38:06,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:38:06,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:06,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:38:06,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:38:06,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:38:06,005 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:38:06,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:38:06,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:38:06,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:38:06,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:38:06,007 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_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fff07e5b9817da9e6fd154070162cff001ebe527349ae31a2f1e574ef0fb9f98 [2022-10-17 10:38:06,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:38:06,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:38:06,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:38:06,412 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:38:06,413 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:38:06,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2022-10-17 10:38:06,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/data/221767de1/c08e16b28b764e4aa2d6ac832a1519c7/FLAG7bde959f4 [2022-10-17 10:38:07,079 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:38:07,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c [2022-10-17 10:38:07,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/data/221767de1/c08e16b28b764e4aa2d6ac832a1519c7/FLAG7bde959f4 [2022-10-17 10:38:07,325 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/data/221767de1/c08e16b28b764e4aa2d6ac832a1519c7 [2022-10-17 10:38:07,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:38:07,331 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:38:07,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:07,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:38:07,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:38:07,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:07,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f9541a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07, skipping insertion in model container [2022-10-17 10:38:07,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:07,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:38:07,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:38:07,824 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_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c[16170,16183] [2022-10-17 10:38:07,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:07,847 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:38:07,935 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_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/sv-benchmarks/c/product-lines/minepump_spec5_product33.cil.c[16170,16183] [2022-10-17 10:38:07,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:38:07,971 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:38:07,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07 WrapperNode [2022-10-17 10:38:07,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:38:07,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:07,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:38:07,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:38:07,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,039 INFO L138 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 22, calls inlined = 18, statements flattened = 228 [2022-10-17 10:38:08,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:38:08,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:38:08,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:38:08,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:38:08,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:38:08,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:38:08,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:38:08,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:38:08,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (1/1) ... [2022-10-17 10:38:08,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:38:08,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:08,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:38:08,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:38:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:38:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:38:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:38:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:38:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:38:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:38:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:38:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:38:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:38:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-10-17 10:38:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-10-17 10:38:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:38:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:38:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:38:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:38:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:38:08,337 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:38:08,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:38:08,722 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:38:08,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:38:08,733 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:38:08,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:08 BoogieIcfgContainer [2022-10-17 10:38:08,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:38:08,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:38:08,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:38:08,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:38:08,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:38:07" (1/3) ... [2022-10-17 10:38:08,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736a69b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:08, skipping insertion in model container [2022-10-17 10:38:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:38:07" (2/3) ... [2022-10-17 10:38:08,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@736a69b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:38:08, skipping insertion in model container [2022-10-17 10:38:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:08" (3/3) ... [2022-10-17 10:38:08,747 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2022-10-17 10:38:08,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:38:08,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:38:08,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:38:08,852 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6766aa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:38:08,853 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:38:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-17 10:38:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:38:08,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:08,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:08,897 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:08,907 INFO L85 PathProgramCache]: Analyzing trace with hash 627967517, now seen corresponding path program 1 times [2022-10-17 10:38:08,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:08,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807827506] [2022-10-17 10:38:08,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:08,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-17 10:38:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:38:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:09,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:09,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807827506] [2022-10-17 10:38:09,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807827506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:09,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:09,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:38:09,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329904193] [2022-10-17 10:38:09,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:09,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:38:09,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:09,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:38:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:38:09,332 INFO L87 Difference]: Start difference. First operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:38:09,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:09,366 INFO L93 Difference]: Finished difference Result 151 states and 206 transitions. [2022-10-17 10:38:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:38:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-10-17 10:38:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:09,378 INFO L225 Difference]: With dead ends: 151 [2022-10-17 10:38:09,379 INFO L226 Difference]: Without dead ends: 71 [2022-10-17 10:38:09,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:38:09,387 INFO L413 NwaCegarLoop]: 100 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, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:09,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:09,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-17 10:38:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-17 10:38:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-17 10:38:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2022-10-17 10:38:09,436 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 32 [2022-10-17 10:38:09,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:09,437 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2022-10-17 10:38:09,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:38:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2022-10-17 10:38:09,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 10:38:09,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:09,441 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:09,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:38:09,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:09,442 INFO L85 PathProgramCache]: Analyzing trace with hash 904354069, now seen corresponding path program 1 times [2022-10-17 10:38:09,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:09,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001800013] [2022-10-17 10:38:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:09,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:38:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:38:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:09,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:09,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001800013] [2022-10-17 10:38:09,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001800013] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:09,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:09,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:38:09,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670396049] [2022-10-17 10:38:09,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:09,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:38:09,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:09,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:38:09,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:09,667 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:38:09,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:09,684 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2022-10-17 10:38:09,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:38:09,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-10-17 10:38:09,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:09,687 INFO L225 Difference]: With dead ends: 107 [2022-10-17 10:38:09,687 INFO L226 Difference]: Without dead ends: 62 [2022-10-17 10:38:09,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:09,690 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 12 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:09,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-17 10:38:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-17 10:38:09,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:38:09,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-10-17 10:38:09,702 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 33 [2022-10-17 10:38:09,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:09,703 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-10-17 10:38:09,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-17 10:38:09,703 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-10-17 10:38:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 10:38:09,705 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:09,705 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:09,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:38:09,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:09,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1553895651, now seen corresponding path program 1 times [2022-10-17 10:38:09,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:09,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834924732] [2022-10-17 10:38:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:09,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:09,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:38:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:09,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834924732] [2022-10-17 10:38:09,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834924732] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:09,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:09,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:38:09,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592894689] [2022-10-17 10:38:09,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:09,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:38:09,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:09,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:38:09,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:38:09,960 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:10,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:10,094 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2022-10-17 10:38:10,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:38:10,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-10-17 10:38:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:10,097 INFO L225 Difference]: With dead ends: 116 [2022-10-17 10:38:10,097 INFO L226 Difference]: Without dead ends: 62 [2022-10-17 10:38:10,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:38:10,103 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 107 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:10,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 160 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:38:10,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-17 10:38:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-10-17 10:38:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-10-17 10:38:10,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-10-17 10:38:10,135 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 37 [2022-10-17 10:38:10,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:10,137 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-10-17 10:38:10,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-10-17 10:38:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-17 10:38:10,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:10,139 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:10,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:38:10,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:10,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1104761714, now seen corresponding path program 1 times [2022-10-17 10:38:10,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:10,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170959790] [2022-10-17 10:38:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:10,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-10-17 10:38:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:38:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:10,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170959790] [2022-10-17 10:38:10,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170959790] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:10,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:10,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:38:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869268813] [2022-10-17 10:38:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:10,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:38:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:38:10,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:10,344 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:38:10,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:10,415 INFO L93 Difference]: Finished difference Result 159 states and 205 transitions. [2022-10-17 10:38:10,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:38:10,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2022-10-17 10:38:10,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:10,421 INFO L225 Difference]: With dead ends: 159 [2022-10-17 10:38:10,421 INFO L226 Difference]: Without dead ends: 105 [2022-10-17 10:38:10,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:10,424 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 47 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:10,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 151 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-10-17 10:38:10,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 103. [2022-10-17 10:38:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 80 states have (on average 1.3) internal successors, (104), 86 states have internal predecessors, (104), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-10-17 10:38:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-10-17 10:38:10,460 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 42 [2022-10-17 10:38:10,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:10,460 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-10-17 10:38:10,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:38:10,462 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-10-17 10:38:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:38:10,477 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:10,478 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:10,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:38:10,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:10,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 731559770, now seen corresponding path program 1 times [2022-10-17 10:38:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:10,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962657944] [2022-10-17 10:38:10,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:10,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:38:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:10,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:10,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962657944] [2022-10-17 10:38:10,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962657944] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:10,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:10,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:38:10,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142198645] [2022-10-17 10:38:10,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:10,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:38:10,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:10,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:38:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:10,748 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:10,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:10,825 INFO L93 Difference]: Finished difference Result 217 states and 278 transitions. [2022-10-17 10:38:10,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:38:10,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-10-17 10:38:10,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:10,829 INFO L225 Difference]: With dead ends: 217 [2022-10-17 10:38:10,829 INFO L226 Difference]: Without dead ends: 122 [2022-10-17 10:38:10,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:38:10,832 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 45 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:10,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 369 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:10,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-17 10:38:10,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 106. [2022-10-17 10:38:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 89 states have internal predecessors, (107), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-10-17 10:38:10,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 133 transitions. [2022-10-17 10:38:10,854 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 133 transitions. Word has length 46 [2022-10-17 10:38:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:10,854 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 133 transitions. [2022-10-17 10:38:10,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 133 transitions. [2022-10-17 10:38:10,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:38:10,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:10,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:10,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:38:10,857 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash -856788132, now seen corresponding path program 1 times [2022-10-17 10:38:10,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:10,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205127477] [2022-10-17 10:38:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:10,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:38:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:10,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:10,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205127477] [2022-10-17 10:38:10,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205127477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:10,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:10,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:38:10,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698038754] [2022-10-17 10:38:10,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:10,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:38:10,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:38:10,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:38:10,969 INFO L87 Difference]: Start difference. First operand 106 states and 133 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:11,010 INFO L93 Difference]: Finished difference Result 223 states and 287 transitions. [2022-10-17 10:38:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:38:11,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-10-17 10:38:11,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:11,017 INFO L225 Difference]: With dead ends: 223 [2022-10-17 10:38:11,017 INFO L226 Difference]: Without dead ends: 125 [2022-10-17 10:38:11,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:38:11,020 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 35 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:11,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 245 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:11,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-17 10:38:11,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 108. [2022-10-17 10:38:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 85 states have (on average 1.2823529411764707) internal successors, (109), 91 states have internal predecessors, (109), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-10-17 10:38:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 135 transitions. [2022-10-17 10:38:11,052 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 135 transitions. Word has length 46 [2022-10-17 10:38:11,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:11,053 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 135 transitions. [2022-10-17 10:38:11,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 135 transitions. [2022-10-17 10:38:11,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:38:11,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:11,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:11,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:38:11,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:11,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1749235422, now seen corresponding path program 1 times [2022-10-17 10:38:11,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:11,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435727546] [2022-10-17 10:38:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:11,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-17 10:38:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:11,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:11,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435727546] [2022-10-17 10:38:11,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435727546] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:11,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:11,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:38:11,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857185458] [2022-10-17 10:38:11,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:11,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:38:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:11,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:38:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:11,238 INFO L87 Difference]: Start difference. First operand 108 states and 135 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:11,279 INFO L93 Difference]: Finished difference Result 256 states and 324 transitions. [2022-10-17 10:38:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:38:11,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2022-10-17 10:38:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:11,287 INFO L225 Difference]: With dead ends: 256 [2022-10-17 10:38:11,287 INFO L226 Difference]: Without dead ends: 156 [2022-10-17 10:38:11,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:38:11,298 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 39 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:11,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 151 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:38:11,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-17 10:38:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2022-10-17 10:38:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 121 states have (on average 1.2644628099173554) internal successors, (153), 128 states have internal predecessors, (153), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2022-10-17 10:38:11,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 191 transitions. [2022-10-17 10:38:11,337 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 191 transitions. Word has length 46 [2022-10-17 10:38:11,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:11,337 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 191 transitions. [2022-10-17 10:38:11,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-17 10:38:11,338 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 191 transitions. [2022-10-17 10:38:11,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 10:38:11,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:11,339 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:11,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:38:11,340 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:11,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:11,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2549066, now seen corresponding path program 1 times [2022-10-17 10:38:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:11,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635192362] [2022-10-17 10:38:11,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 10:38:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:38:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:38:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:38:11,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:11,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635192362] [2022-10-17 10:38:11,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635192362] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:11,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:11,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:38:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194321142] [2022-10-17 10:38:11,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:11,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:38:11,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:11,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:38:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:38:11,546 INFO L87 Difference]: Start difference. First operand 154 states and 191 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:38:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:11,669 INFO L93 Difference]: Finished difference Result 307 states and 384 transitions. [2022-10-17 10:38:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:38:11,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-10-17 10:38:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:11,675 INFO L225 Difference]: With dead ends: 307 [2022-10-17 10:38:11,676 INFO L226 Difference]: Without dead ends: 161 [2022-10-17 10:38:11,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:38:11,678 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 31 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:11,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 383 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:38:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-10-17 10:38:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 152. [2022-10-17 10:38:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 126 states have internal predecessors, (147), 18 states have call successors, (18), 15 states have call predecessors, (18), 14 states have return successors, (20), 17 states have call predecessors, (20), 18 states have call successors, (20) [2022-10-17 10:38:11,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 185 transitions. [2022-10-17 10:38:11,726 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 185 transitions. Word has length 48 [2022-10-17 10:38:11,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:11,727 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 185 transitions. [2022-10-17 10:38:11,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:38:11,727 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 185 transitions. [2022-10-17 10:38:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-17 10:38:11,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:11,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:11,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:38:11,730 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash 458290680, now seen corresponding path program 1 times [2022-10-17 10:38:11,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:11,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665493047] [2022-10-17 10:38:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:11,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 10:38:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-17 10:38:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:38:12,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:12,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665493047] [2022-10-17 10:38:12,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665493047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:38:12,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:38:12,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:38:12,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549825672] [2022-10-17 10:38:12,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:38:12,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:38:12,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:12,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:38:12,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:38:12,094 INFO L87 Difference]: Start difference. First operand 152 states and 185 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 10:38:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:12,497 INFO L93 Difference]: Finished difference Result 511 states and 646 transitions. [2022-10-17 10:38:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:38:12,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2022-10-17 10:38:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:12,504 INFO L225 Difference]: With dead ends: 511 [2022-10-17 10:38:12,504 INFO L226 Difference]: Without dead ends: 412 [2022-10-17 10:38:12,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:38:12,515 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 211 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:12,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 585 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:38:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-10-17 10:38:12,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 378. [2022-10-17 10:38:12,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 297 states have (on average 1.2222222222222223) internal successors, (363), 316 states have internal predecessors, (363), 44 states have call successors, (44), 33 states have call predecessors, (44), 36 states have return successors, (54), 42 states have call predecessors, (54), 44 states have call successors, (54) [2022-10-17 10:38:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 461 transitions. [2022-10-17 10:38:12,592 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 461 transitions. Word has length 50 [2022-10-17 10:38:12,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:12,592 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 461 transitions. [2022-10-17 10:38:12,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 10:38:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 461 transitions. [2022-10-17 10:38:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-10-17 10:38:12,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:38:12,595 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:38:12,596 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:38:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:38:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -643370142, now seen corresponding path program 1 times [2022-10-17 10:38:12,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:38:12,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261405136] [2022-10-17 10:38:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:38:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:38:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:38:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:38:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:38:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:38:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:38:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:38:12,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:38:12,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261405136] [2022-10-17 10:38:12,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261405136] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:38:12,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095790806] [2022-10-17 10:38:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:38:12,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:38:12,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:38:12,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:38:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:38:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:38:13,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:38:13,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:38:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:38:13,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:38:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:38:13,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095790806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:38:13,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:38:13,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2022-10-17 10:38:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15791808] [2022-10-17 10:38:13,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:38:13,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-17 10:38:13,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:38:13,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-17 10:38:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:38:13,577 INFO L87 Difference]: Start difference. First operand 378 states and 461 transitions. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2022-10-17 10:38:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:38:14,309 INFO L93 Difference]: Finished difference Result 607 states and 766 transitions. [2022-10-17 10:38:14,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-17 10:38:14,309 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 81 [2022-10-17 10:38:14,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:38:14,310 INFO L225 Difference]: With dead ends: 607 [2022-10-17 10:38:14,310 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:38:14,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 174 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=176, Invalid=754, Unknown=0, NotChecked=0, Total=930 [2022-10-17 10:38:14,314 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 274 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:38:14,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 755 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:38:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:38:14,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:38:14,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:38:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:38:14,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2022-10-17 10:38:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:38:14,316 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:38:14,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2022-10-17 10:38:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:38:14,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:38:14,319 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:38:14,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:38:14,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-17 10:38:14,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:38:17,743 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 525 531) no Hoare annotation was computed. [2022-10-17 10:38:17,743 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 525 531) the Hoare annotation is: true [2022-10-17 10:38:17,743 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 822 833) the Hoare annotation is: true [2022-10-17 10:38:17,744 INFO L899 garLoopResultBuilder]: For program point L826-1(lines 822 833) no Hoare annotation was computed. [2022-10-17 10:38:17,744 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 822 833) no Hoare annotation was computed. [2022-10-17 10:38:17,744 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 689 718) no Hoare annotation was computed. [2022-10-17 10:38:17,744 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 707) no Hoare annotation was computed. [2022-10-17 10:38:17,744 INFO L902 garLoopResultBuilder]: At program point L703-1(lines 703 707) the Hoare annotation is: true [2022-10-17 10:38:17,744 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 689 718) the Hoare annotation is: true [2022-10-17 10:38:17,744 INFO L899 garLoopResultBuilder]: For program point L700(line 700) no Hoare annotation was computed. [2022-10-17 10:38:17,745 INFO L902 garLoopResultBuilder]: At program point L699-2(lines 699 713) the Hoare annotation is: true [2022-10-17 10:38:17,745 INFO L902 garLoopResultBuilder]: At program point L695(line 695) the Hoare annotation is: true [2022-10-17 10:38:17,745 INFO L899 garLoopResultBuilder]: For program point L695-1(line 695) no Hoare annotation was computed. [2022-10-17 10:38:17,745 INFO L902 garLoopResultBuilder]: At program point L714(lines 689 718) the Hoare annotation is: true [2022-10-17 10:38:17,745 INFO L899 garLoopResultBuilder]: For program point L710(line 710) no Hoare annotation was computed. [2022-10-17 10:38:17,746 INFO L895 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (<= 1 ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 1)) (.cse7 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_processEnvironment_~tmp~4#1| 0) .cse4)) (or .cse1 .cse5 (and .cse6 .cse7) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse5 .cse2 .cse3 (and .cse6 .cse4 .cse7)))) [2022-10-17 10:38:17,746 INFO L895 garLoopResultBuilder]: At program point L791(lines 786 793) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-10-17 10:38:17,746 INFO L899 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2022-10-17 10:38:17,747 INFO L895 garLoopResultBuilder]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)))) [2022-10-17 10:38:17,747 INFO L895 garLoopResultBuilder]: At program point L552-1(lines 533 557) the Hoare annotation is: (let ((.cse2 (= 1 ~systemActive~0))) (let ((.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (= ~waterLevel~0 1)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not .cse2)) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse10 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~4#1| 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3 .cse4) .cse5) (or .cse5 .cse6 (and .cse7 .cse8) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse5 .cse6 .cse9 .cse10 (and .cse7 .cse4 .cse8)) (let ((.cse11 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse5 .cse9 (and .cse7 .cse11) .cse10 (and .cse1 .cse2 .cse3 .cse11)))))) [2022-10-17 10:38:17,747 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 498 524) no Hoare annotation was computed. [2022-10-17 10:38:17,747 INFO L899 garLoopResultBuilder]: For program point L639(lines 639 643) no Hoare annotation was computed. [2022-10-17 10:38:17,747 INFO L899 garLoopResultBuilder]: For program point L639-2(lines 639 643) no Hoare annotation was computed. [2022-10-17 10:38:17,748 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 885) no Hoare annotation was computed. [2022-10-17 10:38:17,748 INFO L895 garLoopResultBuilder]: At program point L904(line 904) the Hoare annotation is: (let ((.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse4))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or (and .cse0 .cse1 .cse4) .cse2 .cse3 .cse5 .cse6) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2022-10-17 10:38:17,748 INFO L899 garLoopResultBuilder]: For program point L904-1(line 904) no Hoare annotation was computed. [2022-10-17 10:38:17,748 INFO L895 garLoopResultBuilder]: At program point L871(lines 866 874) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse6 (not .cse3)) (.cse11 (not (<= 1 |old(~pumpRunning~0)|))) (.cse7 (not (< 1 |old(~waterLevel~0)|))) (.cse9 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse10 (= ~waterLevel~0 1)) (.cse12 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse2 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5) .cse6 .cse7 (and .cse8 .cse2 .cse5) .cse9)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse3 .cse4 .cse10) .cse6) (or .cse6 .cse11 (and .cse8 .cse12) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse6 .cse11 .cse7 .cse9 (and .cse8 .cse10 .cse12))))) [2022-10-17 10:38:17,749 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 512 518) no Hoare annotation was computed. [2022-10-17 10:38:17,749 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 549) no Hoare annotation was computed. [2022-10-17 10:38:17,749 INFO L899 garLoopResultBuilder]: For program point L537(lines 537 554) no Hoare annotation was computed. [2022-10-17 10:38:17,749 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 931) no Hoare annotation was computed. [2022-10-17 10:38:17,749 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 934) no Hoare annotation was computed. [2022-10-17 10:38:17,749 INFO L895 garLoopResultBuilder]: At program point L884(lines 875 888) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse3 (= ~waterLevel~0 1))))) [2022-10-17 10:38:17,750 INFO L895 garLoopResultBuilder]: At program point L917-1(lines 909 937) the Hoare annotation is: (let ((.cse9 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse10 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse1 (not .cse9)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (<= 1 ~pumpRunning~0)) (.cse11 (= ~waterLevel~0 1)) (.cse13 (<= 1 ~switchedOnBeforeTS~0))) (and (let ((.cse4 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 .cse6) .cse7 (and .cse8 .cse4 .cse9 .cse5 .cse10 .cse6))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse8 .cse9 .cse10 .cse11) .cse1) (or .cse1 .cse12 (and .cse3 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse12 .cse2 .cse7 (and .cse3 .cse11 .cse13))))) [2022-10-17 10:38:17,750 INFO L895 garLoopResultBuilder]: At program point L645(lines 630 648) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (= |timeShift_isHighWaterLevel_#res#1| 0) (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0) (= ~waterLevel~0 1))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5))) [2022-10-17 10:38:17,750 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 806) no Hoare annotation was computed. [2022-10-17 10:38:17,751 INFO L895 garLoopResultBuilder]: At program point L802-2(lines 798 809) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)))) [2022-10-17 10:38:17,751 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 928) no Hoare annotation was computed. [2022-10-17 10:38:17,751 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 511) no Hoare annotation was computed. [2022-10-17 10:38:17,751 INFO L899 garLoopResultBuilder]: For program point L505-2(lines 501 523) no Hoare annotation was computed. [2022-10-17 10:38:17,751 INFO L899 garLoopResultBuilder]: For program point L790(line 790) no Hoare annotation was computed. [2022-10-17 10:38:17,752 INFO L895 garLoopResultBuilder]: At program point L563(lines 558 565) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 (and (<= 1 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-10-17 10:38:17,752 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 498 524) the Hoare annotation is: (let ((.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse4))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or (and .cse0 .cse1 .cse4) .cse2 .cse3 .cse5 .cse6) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2022-10-17 10:38:17,752 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 498 524) no Hoare annotation was computed. [2022-10-17 10:38:17,752 INFO L895 garLoopResultBuilder]: At program point L906(lines 899 908) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (and (<= 1 ~pumpRunning~0) .cse7 (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse1 .cse3 .cse4 .cse5 .cse6) (or .cse0 (and .cse2 .cse7) .cse1 .cse4 .cse6) (or .cse1 .cse3 .cse5 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2022-10-17 10:38:17,753 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 790) no Hoare annotation was computed. [2022-10-17 10:38:17,753 INFO L895 garLoopResultBuilder]: At program point L547(line 547) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0))) (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not .cse4)) (.cse6 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (= |timeShift_processEnvironment_~tmp~4#1| 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) (and .cse3 .cse4 .cse5 (= ~waterLevel~0 1)) .cse0) (or .cse0 .cse1 .cse6 .cse7) (or .cse2 .cse0 .cse6 .cse7 (and .cse3 .cse4 .cse5 (= |old(~waterLevel~0)| ~waterLevel~0)))))) [2022-10-17 10:38:17,755 INFO L895 garLoopResultBuilder]: At program point L473(lines 430 475) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse5 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4))) [2022-10-17 10:38:17,755 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 446) no Hoare annotation was computed. [2022-10-17 10:38:17,755 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 440 446) no Hoare annotation was computed. [2022-10-17 10:38:17,755 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-10-17 10:38:17,756 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:38:17,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:38:17,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:38:17,756 INFO L895 garLoopResultBuilder]: At program point L668(lines 664 670) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:38:17,756 INFO L902 garLoopResultBuilder]: At program point L759(lines 751 761) the Hoare annotation is: true [2022-10-17 10:38:17,757 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2022-10-17 10:38:17,757 INFO L895 garLoopResultBuilder]: At program point L466-2(lines 460 471) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse5 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4))) [2022-10-17 10:38:17,757 INFO L895 garLoopResultBuilder]: At program point L747(lines 743 749) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 10:38:17,757 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 779) no Hoare annotation was computed. [2022-10-17 10:38:17,758 INFO L899 garLoopResultBuilder]: For program point L450(lines 450 456) no Hoare annotation was computed. [2022-10-17 10:38:17,758 INFO L899 garLoopResultBuilder]: For program point L772-2(lines 772 779) no Hoare annotation was computed. [2022-10-17 10:38:17,758 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 450 456) no Hoare annotation was computed. [2022-10-17 10:38:17,758 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:38:17,758 INFO L895 garLoopResultBuilder]: At program point L896(lines 891 898) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0)) [2022-10-17 10:38:17,759 INFO L902 garLoopResultBuilder]: At program point L479(lines 420 483) the Hoare annotation is: true [2022-10-17 10:38:17,759 INFO L895 garLoopResultBuilder]: At program point L442(line 442) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse5 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4))) [2022-10-17 10:38:17,759 INFO L902 garLoopResultBuilder]: At program point L781(lines 762 784) the Hoare annotation is: true [2022-10-17 10:38:17,759 INFO L895 garLoopResultBuilder]: At program point L476(lines 429 477) the Hoare annotation is: false [2022-10-17 10:38:17,760 INFO L899 garLoopResultBuilder]: For program point L431(lines 430 475) no Hoare annotation was computed. [2022-10-17 10:38:17,760 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 471) no Hoare annotation was computed. [2022-10-17 10:38:17,760 INFO L895 garLoopResultBuilder]: At program point L683(lines 678 686) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:38:17,760 INFO L895 garLoopResultBuilder]: At program point L452(line 452) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (< 1 ~waterLevel~0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (<= ~waterLevel~0 2)) (.cse4 (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse5 .cse1 .cse2 .cse3 (= ~waterLevel~0 1) .cse4) (and .cse5 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse0 .cse6 .cse1 .cse2 .cse3 .cse7 .cse4))) [2022-10-17 10:38:17,761 INFO L895 garLoopResultBuilder]: At program point L675(lines 671 677) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:38:17,761 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 810 821) no Hoare annotation was computed. [2022-10-17 10:38:17,761 INFO L899 garLoopResultBuilder]: For program point L814-1(lines 810 821) no Hoare annotation was computed. [2022-10-17 10:38:17,761 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 810 821) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)) (or .cse1 .cse2 .cse3 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse1 .cse4 .cse2 .cse3 .cse5) (or .cse0 .cse1 .cse4 .cse3 .cse5))) [2022-10-17 10:38:17,761 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 585 593) no Hoare annotation was computed. [2022-10-17 10:38:17,762 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 585 593) the Hoare annotation is: true [2022-10-17 10:38:17,762 INFO L899 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 585 593) no Hoare annotation was computed. [2022-10-17 10:38:17,765 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:38:17,768 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:38:17,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:38:17 BoogieIcfgContainer [2022-10-17 10:38:17,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:38:17,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:38:17,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:38:17,802 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:38:17,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:38:08" (3/4) ... [2022-10-17 10:38:17,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:38:17,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-10-17 10:38:17,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-10-17 10:38:17,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-10-17 10:38:17,813 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-10-17 10:38:17,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-10-17 10:38:17,814 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-10-17 10:38:17,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2022-10-17 10:38:17,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-10-17 10:38:17,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 10:38:17,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 10:38:17,825 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:38:17,826 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:38:17,827 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:38:17,854 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-10-17 10:38:17,855 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-10-17 10:38:17,855 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-10-17 10:38:17,855 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= pumpRunning && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && tmp == systemActive)) || ((((((pumpRunning == 0 && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive)) || ((((((1 <= pumpRunning && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive) [2022-10-17 10:38:17,856 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) [2022-10-17 10:38:17,857 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2022-10-17 10:38:17,857 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == 0 && 2 == \result) && 1 == systemActive) && tmp == 2) && tmp == 0) && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2022-10-17 10:38:17,858 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) [2022-10-17 10:38:17,858 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-10-17 10:38:17,858 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && 2 == \result) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2022-10-17 10:38:17,859 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1)) [2022-10-17 10:38:17,859 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) [2022-10-17 10:38:17,860 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-10-17 10:38:17,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:38:17,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:38:17,886 INFO L158 Benchmark]: Toolchain (without parser) took 10554.69ms. Allocated memory was 100.7MB in the beginning and 157.3MB in the end (delta: 56.6MB). Free memory was 63.8MB in the beginning and 66.6MB in the end (delta: -2.8MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,887 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 61.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:38:17,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 636.40ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 69.4MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.40ms. Allocated memory is still 100.7MB. Free memory was 69.4MB in the beginning and 66.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,888 INFO L158 Benchmark]: Boogie Preprocessor took 36.50ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,888 INFO L158 Benchmark]: RCFGBuilder took 658.83ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 48.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,889 INFO L158 Benchmark]: TraceAbstraction took 9062.08ms. Allocated memory was 100.7MB in the beginning and 157.3MB in the end (delta: 56.6MB). Free memory was 47.1MB in the beginning and 71.8MB in the end (delta: -24.7MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,889 INFO L158 Benchmark]: Witness Printer took 83.71ms. Allocated memory is still 157.3MB. Free memory was 71.8MB in the beginning and 66.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:38:17,892 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 61.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 636.40ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 69.4MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.40ms. Allocated memory is still 100.7MB. Free memory was 69.4MB in the beginning and 66.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.50ms. Allocated memory is still 100.7MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 658.83ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 48.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9062.08ms. Allocated memory was 100.7MB in the beginning and 157.3MB in the end (delta: 56.6MB). Free memory was 47.1MB in the beginning and 71.8MB in the end (delta: -24.7MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * Witness Printer took 83.71ms. Allocated memory is still 157.3MB. Free memory was 71.8MB in the beginning and 66.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 790]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 817 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 801 mSDsluCounter, 3039 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2051 mSDsCounter, 205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 806 IncrementalHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 205 mSolverCounterUnsat, 988 mSDtfsCounter, 806 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 304 GetRequests, 232 SyntacticMatches, 5 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=9, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 80 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 610 PreInvPairs, 709 NumberOfFragments, 1749 HoareAnnotationTreeSize, 610 FomulaSimplifications, 546 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 36 FomulaSimplificationsInter, 3171 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 542 NumberOfCodeBlocks, 542 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 611 ConstructedInterpolants, 0 QuantifiedInterpolants, 1324 SizeOfPredicates, 3 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 94/114 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: 751]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: (((((((1 <= pumpRunning && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1) && tmp == systemActive)) || ((((((pumpRunning == 0 && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive)) || ((((((1 <= pumpRunning && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) && tmp == systemActive) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || ((((pumpRunning == 0 && 2 == \result) && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 429]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 762]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == 0 && 2 == \result) && 1 == systemActive) && tmp == 2) && tmp == 0) && \old(waterLevel) == waterLevel)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && 1 == systemActive) && tmp == 0) && waterLevel == 1)) || !(1 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1)) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 699]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 664]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1)) - InvariantResult [Line: 630]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 671]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 420]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 10:38:17,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4ed924-59e3-4b7b-9b8b-fb997af600ac/bin/uautomizer-J5u9QxTXDZ/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