./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/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 f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:16:37,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:16:37,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:16:37,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:16:37,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:16:37,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:16:37,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:16:37,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:16:37,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:16:37,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:16:37,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:16:37,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:16:37,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:16:37,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:16:37,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:16:37,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:16:37,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:16:37,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:16:37,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:16:37,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:16:37,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:16:37,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:16:37,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:16:37,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:16:37,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:16:37,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:16:37,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:16:37,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:16:37,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:16:37,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:16:37,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:16:37,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:16:37,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:16:37,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:16:37,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:16:37,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:16:37,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:16:37,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:16:37,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:16:37,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:16:37,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:16:37,590 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:16:37,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:16:37,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:16:37,620 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:16:37,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:16:37,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:16:37,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:16:37,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:16:37,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:16:37,623 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:16:37,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:16:37,623 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:16:37,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:16:37,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:16:37,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:16:37,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:16:37,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:16:37,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:16:37,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:16:37,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:16:37,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:16:37,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:16:37,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:16:37,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:16:37,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:16:37,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:16:37,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:16:37,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:16:37,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:16:37,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:16:37,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:16:37,628 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:16:37,628 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:16:37,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:16:37,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:16:37,629 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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 [2021-11-20 06:16:37,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:16:37,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:16:37,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:16:37,966 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:16:37,967 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:16:37,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-11-20 06:16:38,028 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/data/da1a7ccb4/64e68b6313dc4a74bc2ea6d3ccc14fad/FLAG5925bc8b4 [2021-11-20 06:16:38,628 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:16:38,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-11-20 06:16:38,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/data/da1a7ccb4/64e68b6313dc4a74bc2ea6d3ccc14fad/FLAG5925bc8b4 [2021-11-20 06:16:38,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/data/da1a7ccb4/64e68b6313dc4a74bc2ea6d3ccc14fad [2021-11-20 06:16:38,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:16:38,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:16:38,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:16:38,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:16:38,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:16:38,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:16:38" (1/1) ... [2021-11-20 06:16:38,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de486b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:38, skipping insertion in model container [2021-11-20 06:16:38,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:16:38" (1/1) ... [2021-11-20 06:16:38,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:16:38,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:16:39,317 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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2021-11-20 06:16:39,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:16:39,331 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:16:39,405 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_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2021-11-20 06:16:39,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:16:39,426 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:16:39,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39 WrapperNode [2021-11-20 06:16:39,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:16:39,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:16:39,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:16:39,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:16:39,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,481 INFO L137 Inliner]: procedures = 52, calls = 149, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 196 [2021-11-20 06:16:39,481 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:16:39,482 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:16:39,482 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:16:39,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:16:39,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,495 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:16:39,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:16:39,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:16:39,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:16:39,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (1/1) ... [2021-11-20 06:16:39,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:16:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:16:39,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:16:39,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:16:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:16:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:16:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:16:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:16:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:16:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:16:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:16:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:16:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:16:39,626 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:16:39,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:16:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:16:39,727 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:16:39,728 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:16:39,962 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:16:39,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:16:39,969 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:16:39,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:16:39 BoogieIcfgContainer [2021-11-20 06:16:39,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:16:39,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:16:39,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:16:39,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:16:39,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:16:38" (1/3) ... [2021-11-20 06:16:39,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5113cc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:16:39, skipping insertion in model container [2021-11-20 06:16:39,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:16:39" (2/3) ... [2021-11-20 06:16:39,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5113cc0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:16:39, skipping insertion in model container [2021-11-20 06:16:39,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:16:39" (3/3) ... [2021-11-20 06:16:39,982 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2021-11-20 06:16:39,988 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:16:39,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:16:40,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:16:40,105 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 06:16:40,106 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:16:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 06:16:40,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 06:16:40,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:40,153 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 06:16:40,154 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:40,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1188594590, now seen corresponding path program 1 times [2021-11-20 06:16:40,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:40,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883441953] [2021-11-20 06:16:40,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:40,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:40,501 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 06:16:40,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:40,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883441953] [2021-11-20 06:16:40,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883441953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:40,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:40,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:16:40,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281797004] [2021-11-20 06:16:40,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:40,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:16:40,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:16:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:16:40,561 INFO L87 Difference]: Start difference. First operand has 63 states, 51 states have (on average 1.392156862745098) internal successors, (71), 55 states have internal predecessors, (71), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) 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 06:16:40,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:40,596 INFO L93 Difference]: Finished difference Result 118 states and 161 transitions. [2021-11-20 06:16:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:16:40,598 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 06:16:40,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:40,607 INFO L225 Difference]: With dead ends: 118 [2021-11-20 06:16:40,607 INFO L226 Difference]: Without dead ends: 54 [2021-11-20 06:16:40,611 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 06:16:40,628 INFO L933 BasicCegarLoop]: 77 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, 77 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 06:16:40,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:16:40,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-20 06:16:40,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-11-20 06:16:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 47 states have internal predecessors, (57), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-20 06:16:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2021-11-20 06:16:40,682 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 19 [2021-11-20 06:16:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:40,682 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-11-20 06:16:40,683 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 06:16:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2021-11-20 06:16:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:16:40,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:40,686 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] [2021-11-20 06:16:40,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:16:40,687 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:40,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:40,688 INFO L85 PathProgramCache]: Analyzing trace with hash -926361742, now seen corresponding path program 1 times [2021-11-20 06:16:40,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:40,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942976975] [2021-11-20 06:16:40,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:40,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:40,796 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 06:16:40,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:40,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942976975] [2021-11-20 06:16:40,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942976975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:40,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:40,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:16:40,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745826822] [2021-11-20 06:16:40,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:40,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:16:40,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:40,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:16:40,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:16:40,802 INFO L87 Difference]: Start difference. First operand 54 states and 68 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 06:16:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:40,816 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2021-11-20 06:16:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:16:40,817 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 06:16:40,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:40,818 INFO L225 Difference]: With dead ends: 69 [2021-11-20 06:16:40,818 INFO L226 Difference]: Without dead ends: 45 [2021-11-20 06:16:40,819 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 06:16:40,821 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 18 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 88 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 06:16:40,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:16:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-20 06:16:40,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-20 06:16:40,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 41 states have internal predecessors, (50), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 06:16:40,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2021-11-20 06:16:40,831 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2021-11-20 06:16:40,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:40,832 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2021-11-20 06:16:40,832 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 06:16:40,832 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2021-11-20 06:16:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:16:40,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:40,834 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] [2021-11-20 06:16:40,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:16:40,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:40,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:40,836 INFO L85 PathProgramCache]: Analyzing trace with hash -953598743, now seen corresponding path program 1 times [2021-11-20 06:16:40,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:40,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749307008] [2021-11-20 06:16:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:40,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:40,912 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 06:16:40,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:40,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749307008] [2021-11-20 06:16:40,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749307008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:40,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:40,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:16:40,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319947808] [2021-11-20 06:16:40,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:40,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:16:40,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:40,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:16:40,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:16:40,927 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 06:16:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:40,972 INFO L93 Difference]: Finished difference Result 119 states and 153 transitions. [2021-11-20 06:16:40,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:16:40,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 25 [2021-11-20 06:16:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:40,976 INFO L225 Difference]: With dead ends: 119 [2021-11-20 06:16:40,976 INFO L226 Difference]: Without dead ends: 81 [2021-11-20 06:16:40,977 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 06:16:40,979 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 48 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:40,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:16:40,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-11-20 06:16:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 76. [2021-11-20 06:16:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.3492063492063493) internal successors, (85), 68 states have internal predecessors, (85), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 06:16:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2021-11-20 06:16:41,000 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 25 [2021-11-20 06:16:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:41,001 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2021-11-20 06:16:41,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 06:16:41,001 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2021-11-20 06:16:41,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 06:16:41,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:41,003 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] [2021-11-20 06:16:41,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:16:41,004 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:41,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:41,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1488202758, now seen corresponding path program 1 times [2021-11-20 06:16:41,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:41,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146375774] [2021-11-20 06:16:41,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:41,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:41,080 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 06:16:41,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:41,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146375774] [2021-11-20 06:16:41,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146375774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:41,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:41,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:16:41,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099574602] [2021-11-20 06:16:41,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:41,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:16:41,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:41,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:16:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:16:41,085 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 06:16:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:41,208 INFO L93 Difference]: Finished difference Result 202 states and 272 transitions. [2021-11-20 06:16:41,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:16:41,209 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 26 [2021-11-20 06:16:41,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:41,214 INFO L225 Difference]: With dead ends: 202 [2021-11-20 06:16:41,214 INFO L226 Difference]: Without dead ends: 133 [2021-11-20 06:16:41,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:16:41,217 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:41,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 208 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:16:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-20 06:16:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-20 06:16:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 110 states have (on average 1.3272727272727274) internal successors, (146), 117 states have internal predecessors, (146), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (14), 10 states have call predecessors, (14), 12 states have call successors, (14) [2021-11-20 06:16:41,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 172 transitions. [2021-11-20 06:16:41,295 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 172 transitions. Word has length 26 [2021-11-20 06:16:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:41,296 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 172 transitions. [2021-11-20 06:16:41,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 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 06:16:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 172 transitions. [2021-11-20 06:16:41,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:16:41,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:41,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:16:41,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:16:41,299 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:41,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1542388661, now seen corresponding path program 1 times [2021-11-20 06:16:41,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:41,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55116044] [2021-11-20 06:16:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:41,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:41,385 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 06:16:41,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:41,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55116044] [2021-11-20 06:16:41,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55116044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:41,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:41,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:16:41,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536821472] [2021-11-20 06:16:41,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:41,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:16:41,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:41,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:16:41,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:16:41,388 INFO L87 Difference]: Start difference. First operand 133 states and 172 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:16:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:41,436 INFO L93 Difference]: Finished difference Result 251 states and 329 transitions. [2021-11-20 06:16:41,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:16:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 06:16:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:41,449 INFO L225 Difference]: With dead ends: 251 [2021-11-20 06:16:41,449 INFO L226 Difference]: Without dead ends: 125 [2021-11-20 06:16:41,451 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 06:16:41,452 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:41,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:16:41,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-20 06:16:41,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-11-20 06:16:41,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 102 states have (on average 1.2745098039215685) internal successors, (130), 109 states have internal predecessors, (130), 12 states have call successors, (12), 12 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-20 06:16:41,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 154 transitions. [2021-11-20 06:16:41,485 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 154 transitions. Word has length 28 [2021-11-20 06:16:41,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:41,488 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 154 transitions. [2021-11-20 06:16:41,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:16:41,488 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 154 transitions. [2021-11-20 06:16:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:16:41,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:16:41,495 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:16:41,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:16:41,495 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:16:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:16:41,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1233366880, now seen corresponding path program 1 times [2021-11-20 06:16:41,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:16:41,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555095536] [2021-11-20 06:16:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:16:41,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:16:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:16:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:16:41,613 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 06:16:41,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:16:41,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555095536] [2021-11-20 06:16:41,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555095536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:16:41,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:16:41,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:16:41,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070126202] [2021-11-20 06:16:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:16:41,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:16:41,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:16:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:16:41,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:16:41,616 INFO L87 Difference]: Start difference. First operand 125 states and 154 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 06:16:41,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:16:41,693 INFO L93 Difference]: Finished difference Result 135 states and 164 transitions. [2021-11-20 06:16:41,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:16:41,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 30 [2021-11-20 06:16:41,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:16:41,694 INFO L225 Difference]: With dead ends: 135 [2021-11-20 06:16:41,694 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:16:41,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 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 06:16:41,697 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:16:41,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 149 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:16:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:16:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:16:41,698 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 06:16:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:16:41,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-11-20 06:16:41,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:16:41,699 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:16:41,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 5 states have internal predecessors, (27), 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 06:16:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:16:41,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:16:41,702 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:16:41,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:16:41,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:16:42,188 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2021-11-20 06:16:42,188 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2021-11-20 06:16:42,189 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2021-11-20 06:16:42,189 INFO L858 garLoopResultBuilder]: For program point L448(line 448) no Hoare annotation was computed. [2021-11-20 06:16:42,189 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 427 456) no Hoare annotation was computed. [2021-11-20 06:16:42,189 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 427 456) the Hoare annotation is: true [2021-11-20 06:16:42,189 INFO L858 garLoopResultBuilder]: For program point L441(lines 441 445) no Hoare annotation was computed. [2021-11-20 06:16:42,190 INFO L861 garLoopResultBuilder]: At program point L441-1(lines 441 445) the Hoare annotation is: true [2021-11-20 06:16:42,190 INFO L858 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2021-11-20 06:16:42,190 INFO L861 garLoopResultBuilder]: At program point L437-2(lines 437 451) the Hoare annotation is: true [2021-11-20 06:16:42,190 INFO L861 garLoopResultBuilder]: At program point L433(line 433) the Hoare annotation is: true [2021-11-20 06:16:42,191 INFO L858 garLoopResultBuilder]: For program point L433-1(line 433) no Hoare annotation was computed. [2021-11-20 06:16:42,191 INFO L861 garLoopResultBuilder]: At program point L452(lines 427 456) the Hoare annotation is: true [2021-11-20 06:16:42,191 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2021-11-20 06:16:42,193 INFO L858 garLoopResultBuilder]: For program point L254-1(lines 254 260) no Hoare annotation was computed. [2021-11-20 06:16:42,193 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2021-11-20 06:16:42,194 INFO L858 garLoopResultBuilder]: For program point L892(line 892) no Hoare annotation was computed. [2021-11-20 06:16:42,194 INFO L854 garLoopResultBuilder]: At program point L271(lines 267 273) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-11-20 06:16:42,195 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 243 266) no Hoare annotation was computed. [2021-11-20 06:16:42,196 INFO L854 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2021-11-20 06:16:42,196 INFO L854 garLoopResultBuilder]: At program point L893(lines 888 895) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2021-11-20 06:16:42,196 INFO L858 garLoopResultBuilder]: For program point L247-1(lines 246 265) no Hoare annotation was computed. [2021-11-20 06:16:42,196 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2021-11-20 06:16:42,196 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 159) no Hoare annotation was computed. [2021-11-20 06:16:42,197 INFO L854 garLoopResultBuilder]: At program point L146-1(lines 138 162) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~0#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-11-20 06:16:42,197 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 243 266) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-11-20 06:16:42,197 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 243 266) no Hoare annotation was computed. [2021-11-20 06:16:42,197 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 892) no Hoare annotation was computed. [2021-11-20 06:16:42,197 INFO L854 garLoopResultBuilder]: At program point L324(lines 319 327) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or (and (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-11-20 06:16:42,198 INFO L854 garLoopResultBuilder]: At program point L225(lines 178 227) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,198 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 194) no Hoare annotation was computed. [2021-11-20 06:16:42,198 INFO L858 garLoopResultBuilder]: For program point L188-1(lines 188 194) no Hoare annotation was computed. [2021-11-20 06:16:42,198 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 184) no Hoare annotation was computed. [2021-11-20 06:16:42,199 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:16:42,199 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:16:42,199 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:16:42,199 INFO L854 garLoopResultBuilder]: At program point L305(lines 300 307) the Hoare annotation is: false [2021-11-20 06:16:42,199 INFO L861 garLoopResultBuilder]: At program point L495(lines 488 497) the Hoare annotation is: true [2021-11-20 06:16:42,199 INFO L861 garLoopResultBuilder]: At program point L231(lines 168 235) the Hoare annotation is: true [2021-11-20 06:16:42,200 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 204) no Hoare annotation was computed. [2021-11-20 06:16:42,201 INFO L854 garLoopResultBuilder]: At program point L421(lines 416 424) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:16:42,201 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 204) no Hoare annotation was computed. [2021-11-20 06:16:42,201 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:16:42,202 INFO L854 garLoopResultBuilder]: At program point L384(lines 379 386) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,202 INFO L854 garLoopResultBuilder]: At program point L190(line 190) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,205 INFO L854 garLoopResultBuilder]: At program point L413(lines 409 415) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:16:42,210 INFO L858 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2021-11-20 06:16:42,210 INFO L858 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2021-11-20 06:16:42,211 INFO L854 garLoopResultBuilder]: At program point L376(lines 364 378) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,211 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 374) no Hoare annotation was computed. [2021-11-20 06:16:42,211 INFO L858 garLoopResultBuilder]: For program point L368-2(lines 368 374) no Hoare annotation was computed. [2021-11-20 06:16:42,211 INFO L861 garLoopResultBuilder]: At program point L517(lines 498 520) the Hoare annotation is: true [2021-11-20 06:16:42,211 INFO L854 garLoopResultBuilder]: At program point L228(lines 177 229) the Hoare annotation is: false [2021-11-20 06:16:42,212 INFO L858 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2021-11-20 06:16:42,212 INFO L854 garLoopResultBuilder]: At program point L406(lines 402 408) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:16:42,212 INFO L854 garLoopResultBuilder]: At program point L216-2(lines 208 223) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,212 INFO L858 garLoopResultBuilder]: For program point L179(lines 178 227) no Hoare annotation was computed. [2021-11-20 06:16:42,212 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 223) no Hoare annotation was computed. [2021-11-20 06:16:42,213 INFO L854 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-11-20 06:16:42,213 INFO L854 garLoopResultBuilder]: At program point L485(lines 481 487) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-20 06:16:42,213 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2021-11-20 06:16:42,213 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2021-11-20 06:16:42,213 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-11-20 06:16:42,217 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:16:42,222 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:16:42,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:16:42 BoogieIcfgContainer [2021-11-20 06:16:42,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:16:42,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:16:42,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:16:42,272 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:16:42,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:16:39" (3/4) ... [2021-11-20 06:16:42,275 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:16:42,281 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 06:16:42,281 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 06:16:42,282 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 06:16:42,282 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 06:16:42,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2021-11-20 06:16:42,289 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 06:16:42,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:16:42,290 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:16:42,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:16:42,291 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:16:42,292 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:16:42,315 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(pumpRunning == 0) || \old(waterLevel) == waterLevel [2021-11-20 06:16:42,316 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) [2021-11-20 06:16:42,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2021-11-20 06:16:42,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) [2021-11-20 06:16:42,343 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:16:42,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:16:42,345 INFO L158 Benchmark]: Toolchain (without parser) took 3434.47ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 75.1MB in the beginning and 60.4MB in the end (delta: 14.7MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,345 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:16:42,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 514.83ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 74.2MB in the end (delta: 673.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.24ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,346 INFO L158 Benchmark]: Boogie Preprocessor took 30.25ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 70.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:16:42,347 INFO L158 Benchmark]: RCFGBuilder took 458.67ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,347 INFO L158 Benchmark]: TraceAbstraction took 2289.78ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 56.0MB in the beginning and 64.6MB in the end (delta: -8.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,348 INFO L158 Benchmark]: Witness Printer took 79.87ms. Allocated memory is still 138.4MB. Free memory was 64.6MB in the beginning and 60.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:16:42,350 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 62.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 514.83ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 74.2MB in the end (delta: 673.3kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.24ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.25ms. Allocated memory is still 107.0MB. Free memory was 71.7MB in the beginning and 70.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.67ms. Allocated memory is still 107.0MB. Free memory was 70.3MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2289.78ms. Allocated memory was 107.0MB in the beginning and 138.4MB in the end (delta: 31.5MB). Free memory was 56.0MB in the beginning and 64.6MB in the end (delta: -8.6MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 79.87ms. Allocated memory is still 138.4MB. Free memory was 64.6MB in the beginning and 60.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 892]: 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 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 671 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 336 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 29 LocationsWithAnnotation, 161 PreInvPairs, 201 NumberOfFragments, 196 HoareAnnotationTreeSize, 161 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 701 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 427]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || \result == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 488]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 888]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 409]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 481]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || \old(waterLevel) == waterLevel) && ((!(pumpRunning == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 267]: Loop Invariant Derived loop invariant: !(pumpRunning == 0) || \old(waterLevel) == waterLevel - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: ((\result == 0 && \old(waterLevel) == waterLevel) || !(pumpRunning == 0)) && (!(pumpRunning == 0) || !(\old(waterLevel) == 1)) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:16:42,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c814ae69-a1ac-4ffc-a5d2-be5a96feaece/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