./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF --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 dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:04:05,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:04:05,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:04:05,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:04:05,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:04:05,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:04:05,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:04:05,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:04:05,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:04:05,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:04:05,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:04:05,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:04:05,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:04:05,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:04:05,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:04:05,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:04:05,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:04:05,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:04:05,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:04:05,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:04:05,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:04:05,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:04:05,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:04:05,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:04:05,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:04:05,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:04:05,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:04:05,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:04:05,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:04:05,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:04:05,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:04:05,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:04:05,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:04:05,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:04:05,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:04:05,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:04:05,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:04:05,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:04:05,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:04:05,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:04:05,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:04:05,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:04:05,505 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:04:05,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:04:05,507 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:04:05,507 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:04:05,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:04:05,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:04:05,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:04:05,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:04:05,520 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:04:05,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:04:05,522 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:04:05,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:04:05,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:04:05,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:04:05,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:04:05,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:04:05,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:04:05,524 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:04:05,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:04:05,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:04:05,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:04:05,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:04:05,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:04:05,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:04:05,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:04:05,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:04:05,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:04:05,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:04:05,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:04:05,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:04:05,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:04:05,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:04:05,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:04:05,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:04:05,531 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_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcab8ddabad39d2c77c9d9341cfb89acc265e09aeb5bde0419f381c4b7bb75b6 [2021-11-20 06:04:05,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:04:05,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:04:05,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:04:05,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:04:05,948 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:04:05,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2021-11-20 06:04:06,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/data/334dbe05e/e9cd491b5c204f61b8a508ee056d1edc/FLAGe9b8d5e17 [2021-11-20 06:04:06,741 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:04:06,741 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2021-11-20 06:04:06,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/data/334dbe05e/e9cd491b5c204f61b8a508ee056d1edc/FLAGe9b8d5e17 [2021-11-20 06:04:07,036 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/data/334dbe05e/e9cd491b5c204f61b8a508ee056d1edc [2021-11-20 06:04:07,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:04:07,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:04:07,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:04:07,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:04:07,053 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:04:07,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e0724cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07, skipping insertion in model container [2021-11-20 06:04:07,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:04:07,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:04:07,372 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_0fd919b3-b1ce-45da-a7a0-c5c96f087123/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2021-11-20 06:04:07,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:04:07,593 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:04:07,610 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_0fd919b3-b1ce-45da-a7a0-c5c96f087123/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c[1605,1618] [2021-11-20 06:04:07,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:04:07,748 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:04:07,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07 WrapperNode [2021-11-20 06:04:07,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:04:07,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:04:07,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:04:07,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:04:07,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,834 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 257 [2021-11-20 06:04:07,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:04:07,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:04:07,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:04:07,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:04:07,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:04:07,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:04:07,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:04:07,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:04:07,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (1/1) ... [2021-11-20 06:04:07,888 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:04:07,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:04:07,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:04:07,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:04:07,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:04:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-20 06:04:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-20 06:04:07,991 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:04:07,991 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:04:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:04:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:04:07,992 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:04:07,992 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:04:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:04:07,993 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:04:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:04:07,993 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:04:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:04:07,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:04:07,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:04:08,087 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:04:08,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:04:08,504 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:04:08,514 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:04:08,515 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:04:08,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:04:08 BoogieIcfgContainer [2021-11-20 06:04:08,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:04:08,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:04:08,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:04:08,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:04:08,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:04:07" (1/3) ... [2021-11-20 06:04:08,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a357e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:04:08, skipping insertion in model container [2021-11-20 06:04:08,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:04:07" (2/3) ... [2021-11-20 06:04:08,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a357e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:04:08, skipping insertion in model container [2021-11-20 06:04:08,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:04:08" (3/3) ... [2021-11-20 06:04:08,554 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2021-11-20 06:04:08,561 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:04:08,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:04:08,661 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:04:08,680 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:04:08,681 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:04:08,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-20 06:04:08,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 06:04:08,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:08,743 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:08,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:08,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:08,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1722090408, now seen corresponding path program 1 times [2021-11-20 06:04:08,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:08,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821387821] [2021-11-20 06:04:08,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:08,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:09,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:09,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821387821] [2021-11-20 06:04:09,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821387821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:09,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:09,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:04:09,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608285285] [2021-11-20 06:04:09,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:09,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:04:09,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:04:09,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:04:09,174 INFO L87 Difference]: Start difference. First operand has 82 states, 64 states have (on average 1.40625) internal successors, (90), 72 states have internal predecessors, (90), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:09,249 INFO L93 Difference]: Finished difference Result 156 states and 215 transitions. [2021-11-20 06:04:09,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:04:09,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 06:04:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:09,266 INFO L225 Difference]: With dead ends: 156 [2021-11-20 06:04:09,267 INFO L226 Difference]: Without dead ends: 73 [2021-11-20 06:04:09,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:04:09,285 INFO L933 BasicCegarLoop]: 104 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, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:09,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:04:09,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-20 06:04:09,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-11-20 06:04:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-20 06:04:09,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2021-11-20 06:04:09,347 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 19 [2021-11-20 06:04:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:09,348 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2021-11-20 06:04:09,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2021-11-20 06:04:09,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:04:09,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:09,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:09,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:04:09,353 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:09,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1895744144, now seen corresponding path program 1 times [2021-11-20 06:04:09,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:09,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133550649] [2021-11-20 06:04:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:09,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:09,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:09,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133550649] [2021-11-20 06:04:09,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133550649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:09,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:09,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:04:09,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913769206] [2021-11-20 06:04:09,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:09,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:04:09,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:09,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:04:09,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:04:09,442 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:09,463 INFO L93 Difference]: Finished difference Result 112 states and 146 transitions. [2021-11-20 06:04:09,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:04:09,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 06:04:09,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:09,466 INFO L225 Difference]: With dead ends: 112 [2021-11-20 06:04:09,467 INFO L226 Difference]: Without dead ends: 64 [2021-11-20 06:04:09,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:04:09,470 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 12 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:09,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:04:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-20 06:04:09,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-20 06:04:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 58 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 06:04:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2021-11-20 06:04:09,486 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 20 [2021-11-20 06:04:09,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:09,486 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2021-11-20 06:04:09,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,487 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2021-11-20 06:04:09,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 06:04:09,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:09,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:09,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:04:09,490 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:09,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash 540813392, now seen corresponding path program 1 times [2021-11-20 06:04:09,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:09,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038647453] [2021-11-20 06:04:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:09,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:09,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038647453] [2021-11-20 06:04:09,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038647453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:09,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:09,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:04:09,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113136299] [2021-11-20 06:04:09,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:09,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:04:09,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:09,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:04:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:04:09,614 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:09,636 INFO L93 Difference]: Finished difference Result 121 states and 160 transitions. [2021-11-20 06:04:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:04:09,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-20 06:04:09,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:09,640 INFO L225 Difference]: With dead ends: 121 [2021-11-20 06:04:09,640 INFO L226 Difference]: Without dead ends: 64 [2021-11-20 06:04:09,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:04:09,643 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 65 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:09,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 81 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:04:09,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-20 06:04:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-20 06:04:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 58 states have internal predecessors, (68), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 06:04:09,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2021-11-20 06:04:09,663 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 24 [2021-11-20 06:04:09,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:09,663 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2021-11-20 06:04:09,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:09,664 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2021-11-20 06:04:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-20 06:04:09,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:09,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:09,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:04:09,667 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash 412315462, now seen corresponding path program 1 times [2021-11-20 06:04:09,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:09,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803435640] [2021-11-20 06:04:09,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:09,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:04:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:09,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:09,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:09,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803435640] [2021-11-20 06:04:09,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803435640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:09,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:09,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:04:09,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008616939] [2021-11-20 06:04:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:09,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:04:09,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:09,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:04:09,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:04:09,895 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:04:10,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:10,219 INFO L93 Difference]: Finished difference Result 183 states and 235 transitions. [2021-11-20 06:04:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:04:10,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-20 06:04:10,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:10,227 INFO L225 Difference]: With dead ends: 183 [2021-11-20 06:04:10,227 INFO L226 Difference]: Without dead ends: 126 [2021-11-20 06:04:10,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:04:10,230 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:10,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 267 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:04:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-20 06:04:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2021-11-20 06:04:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 96 states have (on average 1.28125) internal successors, (123), 103 states have internal predecessors, (123), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2021-11-20 06:04:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 148 transitions. [2021-11-20 06:04:10,267 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 148 transitions. Word has length 34 [2021-11-20 06:04:10,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:10,268 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 148 transitions. [2021-11-20 06:04:10,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:04:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 148 transitions. [2021-11-20 06:04:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 06:04:10,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:10,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:10,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:04:10,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:10,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:10,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1451427371, now seen corresponding path program 1 times [2021-11-20 06:04:10,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:10,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256789784] [2021-11-20 06:04:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:10,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:10,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:10,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256789784] [2021-11-20 06:04:10,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256789784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:10,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:10,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:04:10,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850147725] [2021-11-20 06:04:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:10,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:04:10,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:10,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:04:10,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:04:10,396 INFO L87 Difference]: Start difference. First operand 120 states and 148 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:10,626 INFO L93 Difference]: Finished difference Result 241 states and 301 transitions. [2021-11-20 06:04:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:04:10,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-20 06:04:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:10,630 INFO L225 Difference]: With dead ends: 241 [2021-11-20 06:04:10,630 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 06:04:10,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:04:10,633 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 59 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:10,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 339 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:04:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 06:04:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 123. [2021-11-20 06:04:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 99 states have (on average 1.2727272727272727) internal successors, (126), 106 states have internal predecessors, (126), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2021-11-20 06:04:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 151 transitions. [2021-11-20 06:04:10,682 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 151 transitions. Word has length 38 [2021-11-20 06:04:10,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:10,683 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 151 transitions. [2021-11-20 06:04:10,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:10,683 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 151 transitions. [2021-11-20 06:04:10,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 06:04:10,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:10,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:10,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:04:10,686 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:10,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash 440310121, now seen corresponding path program 1 times [2021-11-20 06:04:10,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:10,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053512401] [2021-11-20 06:04:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:10,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:10,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:10,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053512401] [2021-11-20 06:04:10,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053512401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:10,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:10,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:04:10,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528047926] [2021-11-20 06:04:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:10,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:04:10,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:10,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:04:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:04:10,833 INFO L87 Difference]: Start difference. First operand 123 states and 151 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:10,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:10,996 INFO L93 Difference]: Finished difference Result 249 states and 312 transitions. [2021-11-20 06:04:11,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:04:11,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-20 06:04:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:11,007 INFO L225 Difference]: With dead ends: 249 [2021-11-20 06:04:11,010 INFO L226 Difference]: Without dead ends: 133 [2021-11-20 06:04:11,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:04:11,018 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 60 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:11,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 267 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:04:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-20 06:04:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2021-11-20 06:04:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 108 states have internal predecessors, (128), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2021-11-20 06:04:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2021-11-20 06:04:11,060 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 38 [2021-11-20 06:04:11,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:11,063 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2021-11-20 06:04:11,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:11,063 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2021-11-20 06:04:11,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-20 06:04:11,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:11,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:11,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:04:11,070 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:11,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:11,071 INFO L85 PathProgramCache]: Analyzing trace with hash -580758233, now seen corresponding path program 1 times [2021-11-20 06:04:11,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:11,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99049515] [2021-11-20 06:04:11,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:11,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:11,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:11,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:11,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99049515] [2021-11-20 06:04:11,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99049515] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:11,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:11,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:04:11,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809914114] [2021-11-20 06:04:11,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:11,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:04:11,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:11,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:04:11,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:04:11,178 INFO L87 Difference]: Start difference. First operand 125 states and 153 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:11,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:11,384 INFO L93 Difference]: Finished difference Result 355 states and 457 transitions. [2021-11-20 06:04:11,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:04:11,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2021-11-20 06:04:11,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:11,388 INFO L225 Difference]: With dead ends: 355 [2021-11-20 06:04:11,389 INFO L226 Difference]: Without dead ends: 237 [2021-11-20 06:04:11,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:04:11,391 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 177 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:11,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 279 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:04:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-20 06:04:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 229. [2021-11-20 06:04:11,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.2596685082872927) internal successors, (228), 192 states have internal predecessors, (228), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2021-11-20 06:04:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 289 transitions. [2021-11-20 06:04:11,458 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 289 transitions. Word has length 38 [2021-11-20 06:04:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:11,459 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 289 transitions. [2021-11-20 06:04:11,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:04:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 289 transitions. [2021-11-20 06:04:11,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-20 06:04:11,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:11,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:11,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:04:11,465 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash -360899650, now seen corresponding path program 1 times [2021-11-20 06:04:11,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:11,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834912210] [2021-11-20 06:04:11,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:11,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:04:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:11,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:11,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834912210] [2021-11-20 06:04:11,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834912210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:11,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:11,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:04:11,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770496697] [2021-11-20 06:04:11,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:11,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:04:11,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:11,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:04:11,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:04:11,560 INFO L87 Difference]: Start difference. First operand 229 states and 289 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:04:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:11,739 INFO L93 Difference]: Finished difference Result 451 states and 570 transitions. [2021-11-20 06:04:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:04:11,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 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 40 [2021-11-20 06:04:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:11,743 INFO L225 Difference]: With dead ends: 451 [2021-11-20 06:04:11,743 INFO L226 Difference]: Without dead ends: 229 [2021-11-20 06:04:11,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:04:11,746 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 98 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:11,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 320 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:04:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-20 06:04:11,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2021-11-20 06:04:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 179 states have (on average 1.2513966480446927) internal successors, (224), 190 states have internal predecessors, (224), 23 states have call successors, (23), 23 states have call predecessors, (23), 24 states have return successors, (38), 23 states have call predecessors, (38), 23 states have call successors, (38) [2021-11-20 06:04:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 285 transitions. [2021-11-20 06:04:11,774 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 285 transitions. Word has length 40 [2021-11-20 06:04:11,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:11,775 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 285 transitions. [2021-11-20 06:04:11,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 06:04:11,776 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 285 transitions. [2021-11-20 06:04:11,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 06:04:11,777 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:11,777 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:11,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:04:11,778 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:11,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:11,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2038696205, now seen corresponding path program 1 times [2021-11-20 06:04:11,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:11,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980634619] [2021-11-20 06:04:11,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:11,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:04:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:04:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:11,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:11,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:11,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980634619] [2021-11-20 06:04:11,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980634619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:11,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:04:11,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:04:11,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751838840] [2021-11-20 06:04:11,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:11,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:04:11,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:11,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:04:11,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:04:11,868 INFO L87 Difference]: Start difference. First operand 227 states and 285 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:04:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:12,245 INFO L93 Difference]: Finished difference Result 456 states and 585 transitions. [2021-11-20 06:04:12,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:04:12,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2021-11-20 06:04:12,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:12,251 INFO L225 Difference]: With dead ends: 456 [2021-11-20 06:04:12,252 INFO L226 Difference]: Without dead ends: 276 [2021-11-20 06:04:12,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:04:12,254 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 159 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:12,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 484 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:04:12,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-20 06:04:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 253. [2021-11-20 06:04:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 201 states have (on average 1.2338308457711442) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2021-11-20 06:04:12,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2021-11-20 06:04:12,286 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 42 [2021-11-20 06:04:12,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:12,287 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2021-11-20 06:04:12,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:04:12,289 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2021-11-20 06:04:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-20 06:04:12,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:12,291 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:12,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:04:12,291 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:12,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:12,292 INFO L85 PathProgramCache]: Analyzing trace with hash 871440435, now seen corresponding path program 1 times [2021-11-20 06:04:12,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:12,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208184410] [2021-11-20 06:04:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:12,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:12,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:04:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:04:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:04:12,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:12,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208184410] [2021-11-20 06:04:12,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208184410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:04:12,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437683009] [2021-11-20 06:04:12,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:12,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:04:12,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:04:12,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:04:12,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:04:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:12,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:04:12,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:04:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:13,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:04:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:13,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437683009] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:04:13,360 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:04:13,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2021-11-20 06:04:13,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887487326] [2021-11-20 06:04:13,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:04:13,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:04:13,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:04:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:04:13,365 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-20 06:04:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:14,446 INFO L93 Difference]: Finished difference Result 628 states and 814 transitions. [2021-11-20 06:04:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-20 06:04:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2021-11-20 06:04:14,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:14,452 INFO L225 Difference]: With dead ends: 628 [2021-11-20 06:04:14,452 INFO L226 Difference]: Without dead ends: 424 [2021-11-20 06:04:14,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2021-11-20 06:04:14,456 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 442 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:14,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 965 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 06:04:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-11-20 06:04:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 355. [2021-11-20 06:04:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 282 states have (on average 1.2234042553191489) internal successors, (345), 301 states have internal predecessors, (345), 34 states have call successors, (34), 33 states have call predecessors, (34), 38 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2021-11-20 06:04:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 440 transitions. [2021-11-20 06:04:14,502 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 440 transitions. Word has length 69 [2021-11-20 06:04:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:14,503 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 440 transitions. [2021-11-20 06:04:14,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.833333333333333) internal successors, (94), 9 states have internal predecessors, (94), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-20 06:04:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 440 transitions. [2021-11-20 06:04:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 06:04:14,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:14,507 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:14,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:04:14,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 06:04:14,733 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:14,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:14,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1761843705, now seen corresponding path program 1 times [2021-11-20 06:04:14,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:14,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953919177] [2021-11-20 06:04:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:14,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:04:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:04:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:04:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:04:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:04:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-20 06:04:14,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:14,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953919177] [2021-11-20 06:04:14,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953919177] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:04:14,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603157691] [2021-11-20 06:04:14,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:14,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:04:14,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:04:14,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:04:14,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:04:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:15,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 06:04:15,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:04:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 53 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:04:15,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:04:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 51 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 06:04:16,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603157691] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:04:16,155 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:04:16,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 20 [2021-11-20 06:04:16,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30073473] [2021-11-20 06:04:16,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:04:16,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 06:04:16,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:16,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 06:04:16,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:04:16,162 INFO L87 Difference]: Start difference. First operand 355 states and 440 transitions. Second operand has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-11-20 06:04:18,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:18,546 INFO L93 Difference]: Finished difference Result 916 states and 1194 transitions. [2021-11-20 06:04:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 06:04:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 103 [2021-11-20 06:04:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:18,555 INFO L225 Difference]: With dead ends: 916 [2021-11-20 06:04:18,555 INFO L226 Difference]: Without dead ends: 609 [2021-11-20 06:04:18,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 226 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=636, Invalid=2334, Unknown=0, NotChecked=0, Total=2970 [2021-11-20 06:04:18,560 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 832 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:18,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 1628 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 06:04:18,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2021-11-20 06:04:18,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 525. [2021-11-20 06:04:18,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 411 states have (on average 1.2092457420924574) internal successors, (497), 435 states have internal predecessors, (497), 56 states have call successors, (56), 54 states have call predecessors, (56), 57 states have return successors, (91), 51 states have call predecessors, (91), 56 states have call successors, (91) [2021-11-20 06:04:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 644 transitions. [2021-11-20 06:04:18,642 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 644 transitions. Word has length 103 [2021-11-20 06:04:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:18,644 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 644 transitions. [2021-11-20 06:04:18,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.25) internal successors, (145), 17 states have internal predecessors, (145), 6 states have call successors, (14), 8 states have call predecessors, (14), 5 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2021-11-20 06:04:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 644 transitions. [2021-11-20 06:04:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-20 06:04:18,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:04:18,654 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:04:18,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:04:18,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:04:18,880 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:04:18,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:04:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1113823743, now seen corresponding path program 1 times [2021-11-20 06:04:18,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:04:18,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986480615] [2021-11-20 06:04:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:18,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:04:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:04:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:04:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:04:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-20 06:04:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:04:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:18,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:04:19,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:19,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-20 06:04:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:19,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:04:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:19,021 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-20 06:04:19,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:04:19,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986480615] [2021-11-20 06:04:19,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986480615] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:04:19,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100212144] [2021-11-20 06:04:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:04:19,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:04:19,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:04:19,024 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:04:19,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:04:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:04:19,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:04:19,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:04:19,366 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 06:04:19,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:04:19,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100212144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:04:19,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:04:19,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2021-11-20 06:04:19,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736909589] [2021-11-20 06:04:19,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:04:19,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:04:19,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:04:19,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:04:19,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:04:19,369 INFO L87 Difference]: Start difference. First operand 525 states and 644 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:04:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:04:19,420 INFO L93 Difference]: Finished difference Result 676 states and 824 transitions. [2021-11-20 06:04:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:04:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 110 [2021-11-20 06:04:19,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:04:19,424 INFO L225 Difference]: With dead ends: 676 [2021-11-20 06:04:19,424 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:04:19,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:04:19,428 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 27 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:04:19,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 297 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:04:19,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:04:19,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:04:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:04:19,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:04:19,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 110 [2021-11-20 06:04:19,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:04:19,433 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:04:19,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:04:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:04:19,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:04:19,437 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:04:19,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-20 06:04:19,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:04:19,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:04:21,521 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 303 309) no Hoare annotation was computed. [2021-11-20 06:04:21,521 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 303 309) the Hoare annotation is: true [2021-11-20 06:04:21,521 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 93 104) no Hoare annotation was computed. [2021-11-20 06:04:21,522 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 93 104) the Hoare annotation is: true [2021-11-20 06:04:21,522 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 93 104) no Hoare annotation was computed. [2021-11-20 06:04:21,522 INFO L858 garLoopResultBuilder]: For program point L283-1(lines 282 301) no Hoare annotation was computed. [2021-11-20 06:04:21,522 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 353) no Hoare annotation was computed. [2021-11-20 06:04:21,522 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 358) no Hoare annotation was computed. [2021-11-20 06:04:21,522 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2021-11-20 06:04:21,523 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 591) no Hoare annotation was computed. [2021-11-20 06:04:21,523 INFO L854 garLoopResultBuilder]: At program point L73-2(lines 69 80) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,523 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 279 302) no Hoare annotation was computed. [2021-11-20 06:04:21,523 INFO L858 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2021-11-20 06:04:21,523 INFO L854 garLoopResultBuilder]: At program point L581-1(lines 573 597) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (and (<= 2 ~waterLevel~0) (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) .cse3 (<= 2 |timeShift_getWaterLevel_#res#1|))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (and .cse2 (< |old(~waterLevel~0)| 2) .cse3) .cse4) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse1 .cse4 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_getWaterLevel_#res#1|)) (not (<= 2 |old(~waterLevel~0)|)))))) [2021-11-20 06:04:21,524 INFO L854 garLoopResultBuilder]: At program point L375(lines 370 377) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,524 INFO L858 garLoopResultBuilder]: For program point L462(lines 462 466) no Hoare annotation was computed. [2021-11-20 06:04:21,524 INFO L858 garLoopResultBuilder]: For program point L462-2(lines 462 466) no Hoare annotation was computed. [2021-11-20 06:04:21,525 INFO L854 garLoopResultBuilder]: At program point L165(lines 160 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,525 INFO L854 garLoopResultBuilder]: At program point L351(line 351) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,525 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-20 06:04:21,525 INFO L854 garLoopResultBuilder]: At program point L356(line 356) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,526 INFO L854 garLoopResultBuilder]: At program point L356-1(lines 337 361) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (and (<= 2 ~waterLevel~0) .cse1))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1) .cse2 (not (<= 1 |old(~waterLevel~0)|)) .cse3) (or (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|)))))) [2021-11-20 06:04:21,526 INFO L858 garLoopResultBuilder]: For program point L290-1(lines 290 296) no Hoare annotation was computed. [2021-11-20 06:04:21,526 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,526 INFO L854 garLoopResultBuilder]: At program point L468(lines 453 471) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,526 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 279 302) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2021-11-20 06:04:21,527 INFO L854 garLoopResultBuilder]: At program point L142(lines 137 145) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (and (<= 2 ~waterLevel~0) .cse5 (<= 2 |timeShift_getWaterLevel_#res#1|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse1 (and (<= 1 |timeShift_processEnvironment_~tmp~2#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_getWaterLevel_#res#1|)) .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse0 (and .cse2 .cse5) .cse1 (not (<= 1 |old(~waterLevel~0)|)) .cse3)))) [2021-11-20 06:04:21,527 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 279 302) no Hoare annotation was computed. [2021-11-20 06:04:21,527 INFO L854 garLoopResultBuilder]: At program point L394(lines 389 397) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,527 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-20 06:04:21,527 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-11-20 06:04:21,528 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 172 201) no Hoare annotation was computed. [2021-11-20 06:04:21,528 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 172 201) the Hoare annotation is: true [2021-11-20 06:04:21,528 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2021-11-20 06:04:21,528 INFO L861 garLoopResultBuilder]: At program point L186-1(lines 186 190) the Hoare annotation is: true [2021-11-20 06:04:21,528 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-11-20 06:04:21,528 INFO L861 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: true [2021-11-20 06:04:21,528 INFO L861 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: true [2021-11-20 06:04:21,528 INFO L858 garLoopResultBuilder]: For program point L178-1(line 178) no Hoare annotation was computed. [2021-11-20 06:04:21,528 INFO L861 garLoopResultBuilder]: At program point L197(lines 172 201) the Hoare annotation is: true [2021-11-20 06:04:21,529 INFO L858 garLoopResultBuilder]: For program point L258-2(lines 258 265) no Hoare annotation was computed. [2021-11-20 06:04:21,529 INFO L854 garLoopResultBuilder]: At program point L568(lines 563 571) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:04:21,529 INFO L861 garLoopResultBuilder]: At program point L242(lines 235 244) the Hoare annotation is: true [2021-11-20 06:04:21,529 INFO L854 garLoopResultBuilder]: At program point L560(lines 556 562) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:04:21,529 INFO L861 garLoopResultBuilder]: At program point L267(lines 248 270) the Hoare annotation is: true [2021-11-20 06:04:21,529 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 523) no Hoare annotation was computed. [2021-11-20 06:04:21,529 INFO L854 garLoopResultBuilder]: At program point L519-2(lines 513 524) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-11-20 06:04:21,529 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:04:21,529 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:04:21,529 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:04:21,530 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 509) no Hoare annotation was computed. [2021-11-20 06:04:21,530 INFO L858 garLoopResultBuilder]: For program point L503-1(lines 503 509) no Hoare annotation was computed. [2021-11-20 06:04:21,530 INFO L861 garLoopResultBuilder]: At program point L532(lines 473 536) the Hoare annotation is: true [2021-11-20 06:04:21,530 INFO L854 garLoopResultBuilder]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-11-20 06:04:21,530 INFO L854 garLoopResultBuilder]: At program point L553(lines 549 555) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:04:21,530 INFO L854 garLoopResultBuilder]: At program point L231(lines 227 233) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:04:21,530 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:04:21,530 INFO L854 garLoopResultBuilder]: At program point L529(lines 482 530) the Hoare annotation is: false [2021-11-20 06:04:21,538 INFO L858 garLoopResultBuilder]: For program point L484(lines 483 528) no Hoare annotation was computed. [2021-11-20 06:04:21,539 INFO L858 garLoopResultBuilder]: For program point L513(lines 513 524) no Hoare annotation was computed. [2021-11-20 06:04:21,539 INFO L854 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-11-20 06:04:21,539 INFO L854 garLoopResultBuilder]: At program point L526(lines 483 528) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2021-11-20 06:04:21,540 INFO L858 garLoopResultBuilder]: For program point L493(lines 493 499) no Hoare annotation was computed. [2021-11-20 06:04:21,540 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2021-11-20 06:04:21,540 INFO L858 garLoopResultBuilder]: For program point L485(lines 485 489) no Hoare annotation was computed. [2021-11-20 06:04:21,540 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 265) no Hoare annotation was computed. [2021-11-20 06:04:21,541 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 311 335) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2021-11-20 06:04:21,541 INFO L854 garLoopResultBuilder]: At program point L155(lines 146 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))) (or .cse0 .cse2 .cse1 (not (<= 2 ~waterLevel~0))))) [2021-11-20 06:04:21,541 INFO L854 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse3))) (and (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2)))) [2021-11-20 06:04:21,541 INFO L854 garLoopResultBuilder]: At program point L449(lines 434 452) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0))))) [2021-11-20 06:04:21,541 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 327) no Hoare annotation was computed. [2021-11-20 06:04:21,541 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 311 335) no Hoare annotation was computed. [2021-11-20 06:04:21,541 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 332) no Hoare annotation was computed. [2021-11-20 06:04:21,542 INFO L858 garLoopResultBuilder]: For program point L443(lines 443 447) no Hoare annotation was computed. [2021-11-20 06:04:21,542 INFO L858 garLoopResultBuilder]: For program point L443-2(lines 443 447) no Hoare annotation was computed. [2021-11-20 06:04:21,542 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2021-11-20 06:04:21,542 INFO L854 garLoopResultBuilder]: At program point L367(lines 362 369) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0)) [2021-11-20 06:04:21,542 INFO L854 garLoopResultBuilder]: At program point L330(line 330) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2021-11-20 06:04:21,542 INFO L858 garLoopResultBuilder]: For program point L330-1(lines 311 335) no Hoare annotation was computed. [2021-11-20 06:04:21,543 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 81 92) no Hoare annotation was computed. [2021-11-20 06:04:21,543 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 81 92) no Hoare annotation was computed. [2021-11-20 06:04:21,543 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 81 92) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:04:21,547 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:04:21,549 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:04:21,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:04:21 BoogieIcfgContainer [2021-11-20 06:04:21,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:04:21,583 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:04:21,583 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:04:21,583 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:04:21,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:04:08" (3/4) ... [2021-11-20 06:04:21,587 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:04:21,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-20 06:04:21,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 06:04:21,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 06:04:21,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 06:04:21,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:04:21,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 06:04:21,607 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2021-11-20 06:04:21,608 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 06:04:21,609 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:04:21,610 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:04:21,610 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:04:21,611 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:04:21,612 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:04:21,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) && (((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,643 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) [2021-11-20 06:04:21,644 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) < 2) && \old(waterLevel) == waterLevel)) || (((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && (((!(1 == systemActive) || (((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,644 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,645 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) [2021-11-20 06:04:21,645 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,645 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,646 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && tmp___0 == 0)) [2021-11-20 06:04:21,646 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,646 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) [2021-11-20 06:04:21,647 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel [2021-11-20 06:04:21,677 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:04:21,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:04:21,679 INFO L158 Benchmark]: Toolchain (without parser) took 14635.85ms. Allocated memory was 96.5MB in the beginning and 167.8MB in the end (delta: 71.3MB). Free memory was 55.2MB in the beginning and 132.2MB in the end (delta: -76.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:04:21,679 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:04:21,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.19ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 59.0MB in the end (delta: -3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.35ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 56.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,680 INFO L158 Benchmark]: Boogie Preprocessor took 39.49ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 55.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,681 INFO L158 Benchmark]: RCFGBuilder took 642.26ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 39.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,682 INFO L158 Benchmark]: TraceAbstraction took 13036.33ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 107.4MB in the beginning and 138.5MB in the end (delta: -31.1MB). Peak memory consumption was 102.5MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,682 INFO L158 Benchmark]: Witness Printer took 95.27ms. Allocated memory is still 167.8MB. Free memory was 138.5MB in the beginning and 132.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:04:21,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 96.5MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.19ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 59.0MB in the end (delta: -3.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.35ms. Allocated memory is still 96.5MB. Free memory was 59.0MB in the beginning and 56.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.49ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 55.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 642.26ms. Allocated memory is still 96.5MB. Free memory was 55.2MB in the beginning and 39.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13036.33ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 107.4MB in the beginning and 138.5MB in the end (delta: -31.1MB). Peak memory consumption was 102.5MB. Max. memory is 16.1GB. * Witness Printer took 95.27ms. Allocated memory is still 167.8MB. Free memory was 138.5MB in the beginning and 132.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2107 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2080 mSDsluCounter, 5179 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3833 mSDsCounter, 550 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2901 IncrementalHoareTripleChecker+Invalid, 3451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 550 mSolverCounterUnsat, 1346 mSDtfsCounter, 2901 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 684 GetRequests, 535 SyntacticMatches, 3 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=11, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 205 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 977 PreInvPairs, 1057 NumberOfFragments, 964 HoareAnnotationTreeSize, 977 FomulaSimplifications, 396 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 38 FomulaSimplificationsInter, 2562 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 857 NumberOfCodeBlocks, 857 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1012 ConstructedInterpolants, 0 QuantifiedInterpolants, 1838 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1401 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 344/382 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: 337]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) && (((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || 2 <= waterLevel - InvariantResult [Line: 482]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && (((!(1 == systemActive) || (((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || waterLevel < 2) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && tmp___0 == 0)) - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && \old(waterLevel) <= waterLevel + 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 235]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 573]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) < 2) && \old(waterLevel) == waterLevel)) || (((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && (((!(1 == systemActive) || (((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 370]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && 1 <= tmp___0) && 1 <= \result) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:04:21,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fd919b3-b1ce-45da-a7a0-c5c96f087123/bin/uautomizer-DQz5hQGWxF/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