./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:21:04,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:21:04,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:21:04,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:21:04,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:21:04,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:21:04,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:21:04,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:21:04,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:21:04,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:21:04,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:21:04,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:21:04,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:21:04,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:21:04,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:21:04,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:21:04,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:21:04,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:21:04,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:21:04,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:21:04,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:21:04,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:21:04,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:21:04,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:21:04,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:21:04,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:21:04,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:21:04,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:21:04,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:21:04,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:21:04,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:21:04,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:21:04,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:21:04,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:21:04,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:21:04,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:21:04,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:21:04,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:21:04,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:21:04,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:21:04,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:21:04,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 18:21:04,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:21:04,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:21:04,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:21:04,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:21:04,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:21:04,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:21:04,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:21:04,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:21:04,511 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:21:04,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:21:04,512 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:21:04,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:21:04,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:21:04,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:21:04,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:21:04,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:21:04,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:21:04,513 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:21:04,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:21:04,513 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:21:04,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:21:04,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:21:04,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:21:04,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:21:04,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:21:04,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:21:04,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:21:04,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:21:04,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:21:04,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:21:04,516 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:21:04,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:21:04,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:21:04,516 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:21:04,516 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_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2021-12-06 18:21:04,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:21:04,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:21:04,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:21:04,738 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:21:04,739 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:21:04,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-12-06 18:21:04,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/data/84349f411/e08065e864b048b88a6bc4c8d6814844/FLAGe869ff3b8 [2021-12-06 18:21:05,191 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:21:05,191 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2021-12-06 18:21:05,201 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/data/84349f411/e08065e864b048b88a6bc4c8d6814844/FLAGe869ff3b8 [2021-12-06 18:21:05,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/data/84349f411/e08065e864b048b88a6bc4c8d6814844 [2021-12-06 18:21:05,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:21:05,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:21:05,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:21:05,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:21:05,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:21:05,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227eddea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05, skipping insertion in model container [2021-12-06 18:21:05,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:21:05,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:21:05,448 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_4486b76a-9652-4389-abfe-144a54fbd9c5/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-12-06 18:21:05,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:21:05,458 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:21:05,512 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_4486b76a-9652-4389-abfe-144a54fbd9c5/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2021-12-06 18:21:05,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:21:05,526 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:21:05,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05 WrapperNode [2021-12-06 18:21:05,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:21:05,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:21:05,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:21:05,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:21:05,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,566 INFO L137 Inliner]: procedures = 58, calls = 158, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 265 [2021-12-06 18:21:05,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:21:05,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:21:05,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:21:05,568 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:21:05,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:21:05,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:21:05,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:21:05,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:21:05,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (1/1) ... [2021-12-06 18:21:05,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:21:05,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:21:05,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:21:05,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:21:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:21:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-12-06 18:21:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-12-06 18:21:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-12-06 18:21:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-12-06 18:21:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 18:21:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 18:21:05,654 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 18:21:05,654 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 18:21:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 18:21:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 18:21:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 18:21:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 18:21:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-12-06 18:21:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-12-06 18:21:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:21:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 18:21:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 18:21:05,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:21:05,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:21:05,723 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:21:05,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:21:05,939 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:21:05,945 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:21:05,945 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 18:21:05,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:21:05 BoogieIcfgContainer [2021-12-06 18:21:05,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:21:05,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:21:05,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:21:05,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:21:05,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:21:05" (1/3) ... [2021-12-06 18:21:05,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1abb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:21:05, skipping insertion in model container [2021-12-06 18:21:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:21:05" (2/3) ... [2021-12-06 18:21:05,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a1abb14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:21:05, skipping insertion in model container [2021-12-06 18:21:05,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:21:05" (3/3) ... [2021-12-06 18:21:05,953 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2021-12-06 18:21:05,957 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:21:05,957 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 18:21:05,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:21:05,997 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:21:05,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 18:21:06,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-06 18:21:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 18:21:06,018 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,018 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] [2021-12-06 18:21:06,018 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,023 INFO L85 PathProgramCache]: Analyzing trace with hash -656399671, now seen corresponding path program 1 times [2021-12-06 18:21:06,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255215027] [2021-12-06 18:21:06,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-06 18:21:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255215027] [2021-12-06 18:21:06,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255215027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:21:06,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868348343] [2021-12-06 18:21:06,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 18:21:06,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 18:21:06,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 18:21:06,218 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,246 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2021-12-06 18:21:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 18:21:06,248 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-12-06 18:21:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,254 INFO L225 Difference]: With dead ends: 183 [2021-12-06 18:21:06,255 INFO L226 Difference]: Without dead ends: 87 [2021-12-06 18:21:06,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 18:21:06,261 INFO L933 BasicCegarLoop]: 121 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, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:06,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-12-06 18:21:06,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-12-06 18:21:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2021-12-06 18:21:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2021-12-06 18:21:06,296 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2021-12-06 18:21:06,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:06,296 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2021-12-06 18:21:06,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2021-12-06 18:21:06,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-06 18:21:06,298 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,299 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] [2021-12-06 18:21:06,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:21:06,299 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1991216904, now seen corresponding path program 1 times [2021-12-06 18:21:06,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529445318] [2021-12-06 18:21:06,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 18:21:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529445318] [2021-12-06 18:21:06,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529445318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 18:21:06,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861873919] [2021-12-06 18:21:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:21:06,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:21:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:21:06,362 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,374 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2021-12-06 18:21:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:21:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-12-06 18:21:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,376 INFO L225 Difference]: With dead ends: 134 [2021-12-06 18:21:06,376 INFO L226 Difference]: Without dead ends: 78 [2021-12-06 18:21:06,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:21:06,378 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-12-06 18:21:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-12-06 18:21:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-06 18:21:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2021-12-06 18:21:06,387 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2021-12-06 18:21:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:06,387 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2021-12-06 18:21:06,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2021-12-06 18:21:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 18:21:06,389 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:06,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:21:06,389 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1985117727, now seen corresponding path program 1 times [2021-12-06 18:21:06,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297211130] [2021-12-06 18:21:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297211130] [2021-12-06 18:21:06,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297211130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:21:06,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553484892] [2021-12-06 18:21:06,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:21:06,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:21:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:21:06,455 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,518 INFO L93 Difference]: Finished difference Result 191 states and 249 transitions. [2021-12-06 18:21:06,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:21:06,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-06 18:21:06,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,520 INFO L225 Difference]: With dead ends: 191 [2021-12-06 18:21:06,520 INFO L226 Difference]: Without dead ends: 121 [2021-12-06 18:21:06,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 18:21:06,522 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 165 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 342 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:06,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-12-06 18:21:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2021-12-06 18:21:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 101 states have internal predecessors, (122), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 11 states have call predecessors, (16), 15 states have call successors, (16) [2021-12-06 18:21:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 153 transitions. [2021-12-06 18:21:06,537 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 153 transitions. Word has length 31 [2021-12-06 18:21:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:06,537 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 153 transitions. [2021-12-06 18:21:06,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 153 transitions. [2021-12-06 18:21:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-12-06 18:21:06,539 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:06,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:21:06,539 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1980394589, now seen corresponding path program 1 times [2021-12-06 18:21:06,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481201357] [2021-12-06 18:21:06,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 18:21:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481201357] [2021-12-06 18:21:06,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481201357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:21:06,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171020130] [2021-12-06 18:21:06,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:21:06,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:21:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:21:06,597 INFO L87 Difference]: Start difference. First operand 118 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,651 INFO L93 Difference]: Finished difference Result 272 states and 364 transitions. [2021-12-06 18:21:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:21:06,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 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 34 [2021-12-06 18:21:06,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,654 INFO L225 Difference]: With dead ends: 272 [2021-12-06 18:21:06,654 INFO L226 Difference]: Without dead ends: 162 [2021-12-06 18:21:06,656 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:21:06,657 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 78 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 387 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:06,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-12-06 18:21:06,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 152. [2021-12-06 18:21:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 116 states have (on average 1.293103448275862) internal successors, (150), 126 states have internal predecessors, (150), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (24), 17 states have call predecessors, (24), 18 states have call successors, (24) [2021-12-06 18:21:06,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 192 transitions. [2021-12-06 18:21:06,680 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 192 transitions. Word has length 34 [2021-12-06 18:21:06,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:06,680 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 192 transitions. [2021-12-06 18:21:06,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 18:21:06,681 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 192 transitions. [2021-12-06 18:21:06,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-06 18:21:06,683 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:21:06,684 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,684 INFO L85 PathProgramCache]: Analyzing trace with hash 501495073, now seen corresponding path program 1 times [2021-12-06 18:21:06,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619369904] [2021-12-06 18:21:06,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-06 18:21:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-06 18:21:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619369904] [2021-12-06 18:21:06,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619369904] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,742 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:21:06,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476843917] [2021-12-06 18:21:06,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:21:06,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:21:06,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:21:06,743 INFO L87 Difference]: Start difference. First operand 152 states and 192 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:21:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,815 INFO L93 Difference]: Finished difference Result 323 states and 408 transitions. [2021-12-06 18:21:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:21:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2021-12-06 18:21:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,817 INFO L225 Difference]: With dead ends: 323 [2021-12-06 18:21:06,817 INFO L226 Difference]: Without dead ends: 179 [2021-12-06 18:21:06,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:21:06,818 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 92 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 268 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:21:06,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-12-06 18:21:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2021-12-06 18:21:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 134 states have (on average 1.2761194029850746) internal successors, (171), 144 states have internal predecessors, (171), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (27), 21 states have call predecessors, (27), 20 states have call successors, (27) [2021-12-06 18:21:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2021-12-06 18:21:06,833 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 48 [2021-12-06 18:21:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:06,834 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2021-12-06 18:21:06,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 18:21:06,834 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2021-12-06 18:21:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 18:21:06,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:06,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:06,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:21:06,836 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:06,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:06,836 INFO L85 PathProgramCache]: Analyzing trace with hash -316583003, now seen corresponding path program 1 times [2021-12-06 18:21:06,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:06,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326394606] [2021-12-06 18:21:06,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:06,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:21:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:06,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:06,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326394606] [2021-12-06 18:21:06,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326394606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:06,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:06,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 18:21:06,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861227676] [2021-12-06 18:21:06,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:06,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:21:06,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:21:06,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:21:06,888 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:06,988 INFO L93 Difference]: Finished difference Result 350 states and 442 transitions. [2021-12-06 18:21:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:21:06,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 18:21:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:06,990 INFO L225 Difference]: With dead ends: 350 [2021-12-06 18:21:06,990 INFO L226 Difference]: Without dead ends: 183 [2021-12-06 18:21:06,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:21:06,992 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 63 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:06,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 384 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:21:06,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-12-06 18:21:07,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2021-12-06 18:21:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 137 states have (on average 1.27007299270073) internal successors, (174), 147 states have internal predecessors, (174), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (27), 21 states have call predecessors, (27), 20 states have call successors, (27) [2021-12-06 18:21:07,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 221 transitions. [2021-12-06 18:21:07,005 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 221 transitions. Word has length 45 [2021-12-06 18:21:07,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:07,005 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 221 transitions. [2021-12-06 18:21:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:07,005 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 221 transitions. [2021-12-06 18:21:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 18:21:07,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:07,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:07,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:21:07,007 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2005526745, now seen corresponding path program 1 times [2021-12-06 18:21:07,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:07,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673009701] [2021-12-06 18:21:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:07,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:21:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:07,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:07,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673009701] [2021-12-06 18:21:07,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673009701] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:07,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:07,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 18:21:07,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535033350] [2021-12-06 18:21:07,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:07,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 18:21:07,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:07,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 18:21:07,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:21:07,058 INFO L87 Difference]: Start difference. First operand 178 states and 221 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:07,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:07,164 INFO L93 Difference]: Finished difference Result 358 states and 454 transitions. [2021-12-06 18:21:07,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:21:07,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 18:21:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:07,166 INFO L225 Difference]: With dead ends: 358 [2021-12-06 18:21:07,166 INFO L226 Difference]: Without dead ends: 188 [2021-12-06 18:21:07,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-06 18:21:07,168 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 110 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:07,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 409 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:21:07,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-12-06 18:21:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 180. [2021-12-06 18:21:07,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 139 states have (on average 1.2661870503597121) internal successors, (176), 149 states have internal predecessors, (176), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (27), 21 states have call predecessors, (27), 20 states have call successors, (27) [2021-12-06 18:21:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2021-12-06 18:21:07,185 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 45 [2021-12-06 18:21:07,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:07,185 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2021-12-06 18:21:07,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2021-12-06 18:21:07,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-06 18:21:07,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:07,187 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:07,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:21:07,188 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:07,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:07,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1582824919, now seen corresponding path program 1 times [2021-12-06 18:21:07,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:07,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665271994] [2021-12-06 18:21:07,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:07,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 18:21:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:07,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:07,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665271994] [2021-12-06 18:21:07,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665271994] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:07,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:07,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:21:07,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377733487] [2021-12-06 18:21:07,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:07,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:21:07,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:07,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:21:07,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:21:07,241 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:07,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:07,366 INFO L93 Difference]: Finished difference Result 545 states and 699 transitions. [2021-12-06 18:21:07,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 18:21:07,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2021-12-06 18:21:07,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:07,369 INFO L225 Difference]: With dead ends: 545 [2021-12-06 18:21:07,369 INFO L226 Difference]: Without dead ends: 373 [2021-12-06 18:21:07,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-06 18:21:07,370 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 213 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:07,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 337 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:21:07,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-06 18:21:07,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2021-12-06 18:21:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 284 states have (on average 1.2394366197183098) internal successors, (352), 302 states have internal predecessors, (352), 44 states have call successors, (44), 42 states have call predecessors, (44), 42 states have return successors, (64), 43 states have call predecessors, (64), 44 states have call successors, (64) [2021-12-06 18:21:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 460 transitions. [2021-12-06 18:21:07,391 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 460 transitions. Word has length 45 [2021-12-06 18:21:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:07,392 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 460 transitions. [2021-12-06 18:21:07,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-06 18:21:07,392 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 460 transitions. [2021-12-06 18:21:07,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 18:21:07,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:07,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:07,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:21:07,393 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:07,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash 929828559, now seen corresponding path program 1 times [2021-12-06 18:21:07,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:07,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292654814] [2021-12-06 18:21:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:07,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 18:21:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 18:21:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-06 18:21:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:07,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:07,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292654814] [2021-12-06 18:21:07,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292654814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:07,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:21:07,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:21:07,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687008220] [2021-12-06 18:21:07,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:07,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:21:07,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:07,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:21:07,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 18:21:07,437 INFO L87 Difference]: Start difference. First operand 371 states and 460 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 18:21:07,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:07,641 INFO L93 Difference]: Finished difference Result 690 states and 898 transitions. [2021-12-06 18:21:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 18:21:07,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2021-12-06 18:21:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:07,645 INFO L225 Difference]: With dead ends: 690 [2021-12-06 18:21:07,646 INFO L226 Difference]: Without dead ends: 688 [2021-12-06 18:21:07,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:21:07,647 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 294 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:07,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 273 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 18:21:07,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2021-12-06 18:21:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 584. [2021-12-06 18:21:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 449 states have (on average 1.247216035634744) internal successors, (560), 480 states have internal predecessors, (560), 69 states have call successors, (69), 56 states have call predecessors, (69), 65 states have return successors, (140), 68 states have call predecessors, (140), 69 states have call successors, (140) [2021-12-06 18:21:07,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 769 transitions. [2021-12-06 18:21:07,683 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 769 transitions. Word has length 49 [2021-12-06 18:21:07,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:07,684 INFO L470 AbstractCegarLoop]: Abstraction has 584 states and 769 transitions. [2021-12-06 18:21:07,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-06 18:21:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 769 transitions. [2021-12-06 18:21:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-12-06 18:21:07,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:07,686 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:07,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:21:07,686 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1198485224, now seen corresponding path program 1 times [2021-12-06 18:21:07,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274945883] [2021-12-06 18:21:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:07,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 18:21:07,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:21:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 18:21:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-06 18:21:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 18:21:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,766 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 18:21:07,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:07,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274945883] [2021-12-06 18:21:07,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274945883] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:21:07,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711832157] [2021-12-06 18:21:07,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:07,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:07,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:21:07,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:21:07,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 18:21:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:07,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 18:21:07,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:21:07,992 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:07,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:21:07,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711832157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:07,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:21:07,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2021-12-06 18:21:07,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792273114] [2021-12-06 18:21:07,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:07,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:21:07,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:07,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:21:07,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:21:07,993 INFO L87 Difference]: Start difference. First operand 584 states and 769 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 18:21:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:08,027 INFO L93 Difference]: Finished difference Result 993 states and 1335 transitions. [2021-12-06 18:21:08,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:21:08,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2021-12-06 18:21:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:08,030 INFO L225 Difference]: With dead ends: 993 [2021-12-06 18:21:08,031 INFO L226 Difference]: Without dead ends: 501 [2021-12-06 18:21:08,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-06 18:21:08,033 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 42 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:08,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 209 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:08,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2021-12-06 18:21:08,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2021-12-06 18:21:08,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 385 states have (on average 1.225974025974026) internal successors, (472), 412 states have internal predecessors, (472), 59 states have call successors, (59), 51 states have call predecessors, (59), 56 states have return successors, (85), 58 states have call predecessors, (85), 59 states have call successors, (85) [2021-12-06 18:21:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 616 transitions. [2021-12-06 18:21:08,058 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 616 transitions. Word has length 88 [2021-12-06 18:21:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:08,058 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 616 transitions. [2021-12-06 18:21:08,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-06 18:21:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 616 transitions. [2021-12-06 18:21:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:21:08,060 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:08,060 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:08,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 18:21:08,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:08,262 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:08,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:08,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1221172747, now seen corresponding path program 1 times [2021-12-06 18:21:08,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:08,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640633959] [2021-12-06 18:21:08,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:08,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:08,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 18:21:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:21:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 18:21:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 18:21:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:21:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 18:21:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 18:21:08,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:08,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640633959] [2021-12-06 18:21:08,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640633959] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:21:08,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93584791] [2021-12-06 18:21:08,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:08,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:08,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:21:08,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:21:08,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 18:21:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 18:21:08,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:21:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-06 18:21:08,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:21:08,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93584791] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:08,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:21:08,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2021-12-06 18:21:08,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070679242] [2021-12-06 18:21:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:08,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 18:21:08,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 18:21:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:21:08,634 INFO L87 Difference]: Start difference. First operand 501 states and 616 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 18:21:08,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:08,683 INFO L93 Difference]: Finished difference Result 944 states and 1188 transitions. [2021-12-06 18:21:08,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:21:08,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2021-12-06 18:21:08,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:08,686 INFO L225 Difference]: With dead ends: 944 [2021-12-06 18:21:08,686 INFO L226 Difference]: Without dead ends: 535 [2021-12-06 18:21:08,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-12-06 18:21:08,688 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 33 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:08,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 404 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-12-06 18:21:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 507. [2021-12-06 18:21:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 391 states have (on average 1.2225063938618925) internal successors, (478), 418 states have internal predecessors, (478), 59 states have call successors, (59), 51 states have call predecessors, (59), 56 states have return successors, (85), 58 states have call predecessors, (85), 59 states have call successors, (85) [2021-12-06 18:21:08,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 622 transitions. [2021-12-06 18:21:08,713 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 622 transitions. Word has length 91 [2021-12-06 18:21:08,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:08,713 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 622 transitions. [2021-12-06 18:21:08,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 18:21:08,713 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 622 transitions. [2021-12-06 18:21:08,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-12-06 18:21:08,715 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 18:21:08,715 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:08,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 18:21:08,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 18:21:08,916 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 18:21:08,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:21:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1355186253, now seen corresponding path program 1 times [2021-12-06 18:21:08,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:21:08,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205811928] [2021-12-06 18:21:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:08,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:21:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 18:21:08,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 18:21:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-06 18:21:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-06 18:21:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-06 18:21:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 18:21:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 18:21:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 18:21:08,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:21:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205811928] [2021-12-06 18:21:08,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205811928] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 18:21:08,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726242717] [2021-12-06 18:21:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:21:08,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:08,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:21:08,992 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 18:21:08,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 18:21:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:21:09,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 18:21:09,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 18:21:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:21:09,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 18:21:09,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726242717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:21:09,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 18:21:09,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-12-06 18:21:09,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709247261] [2021-12-06 18:21:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:21:09,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:21:09,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:21:09,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:21:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-06 18:21:09,184 INFO L87 Difference]: Start difference. First operand 507 states and 622 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 18:21:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 18:21:09,253 INFO L93 Difference]: Finished difference Result 823 states and 1018 transitions. [2021-12-06 18:21:09,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:21:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 91 [2021-12-06 18:21:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 18:21:09,254 INFO L225 Difference]: With dead ends: 823 [2021-12-06 18:21:09,254 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 18:21:09,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-12-06 18:21:09,257 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 144 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 18:21:09,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 492 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 18:21:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 18:21:09,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 18:21:09,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:21:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 18:21:09,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2021-12-06 18:21:09,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 18:21:09,259 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 18:21:09,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 18:21:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 18:21:09,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 18:21:09,262 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 18:21:09,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 18:21:09,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 18:21:09,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 18:21:11,239 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 229 236) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-12-06 18:21:11,239 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 229 236) no Hoare annotation was computed. [2021-12-06 18:21:11,239 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 229 236) no Hoare annotation was computed. [2021-12-06 18:21:11,239 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 162 168) no Hoare annotation was computed. [2021-12-06 18:21:11,239 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 162 168) the Hoare annotation is: true [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 558 569) no Hoare annotation was computed. [2021-12-06 18:21:11,240 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 558 569) the Hoare annotation is: true [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 558 569) no Hoare annotation was computed. [2021-12-06 18:21:11,240 INFO L861 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 570 578) the Hoare annotation is: true [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 570 578) no Hoare annotation was computed. [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 570 578) no Hoare annotation was computed. [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 356 385) no Hoare annotation was computed. [2021-12-06 18:21:11,240 INFO L861 garLoopResultBuilder]: At program point L381(lines 356 385) the Hoare annotation is: true [2021-12-06 18:21:11,240 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 356 385) the Hoare annotation is: true [2021-12-06 18:21:11,240 INFO L858 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2021-12-06 18:21:11,241 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2021-12-06 18:21:11,241 INFO L861 garLoopResultBuilder]: At program point L370-1(lines 370 374) the Hoare annotation is: true [2021-12-06 18:21:11,241 INFO L858 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2021-12-06 18:21:11,241 INFO L861 garLoopResultBuilder]: At program point L366-2(lines 366 380) the Hoare annotation is: true [2021-12-06 18:21:11,241 INFO L861 garLoopResultBuilder]: At program point L362(line 362) the Hoare annotation is: true [2021-12-06 18:21:11,241 INFO L858 garLoopResultBuilder]: For program point L362-1(line 362) no Hoare annotation was computed. [2021-12-06 18:21:11,241 INFO L854 garLoopResultBuilder]: At program point L630(lines 625 633) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~systemActive~0)) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse4 .cse2 .cse5) (or .cse0 .cse3 .cse1) (or .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) .cse2 .cse5))) [2021-12-06 18:21:11,241 INFO L854 garLoopResultBuilder]: At program point L1006(lines 1001 1008) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-06 18:21:11,242 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 138 161) no Hoare annotation was computed. [2021-12-06 18:21:11,242 INFO L858 garLoopResultBuilder]: For program point L321(lines 321 325) no Hoare annotation was computed. [2021-12-06 18:21:11,242 INFO L858 garLoopResultBuilder]: For program point L321-2(lines 321 325) no Hoare annotation was computed. [2021-12-06 18:21:11,242 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2021-12-06 18:21:11,242 INFO L858 garLoopResultBuilder]: For program point L474(lines 474 491) no Hoare annotation was computed. [2021-12-06 18:21:11,242 INFO L854 garLoopResultBuilder]: At program point L474-1(lines 466 494) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not .cse5)) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) (and .cse2 .cse3 (= ~waterLevel~0 1) .cse4) .cse5) (or .cse0 (and .cse2 .cse3 .cse6) (not (<= 1 |old(~waterLevel~0)|)) .cse4) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 .cse3 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0) .cse4) .cse5 .cse7) (or .cse0 .cse1 (and (<= 1 ~pumpRunning~0) .cse6) (and .cse2 .cse3 .cse6 .cse4) .cse5 .cse7)))) [2021-12-06 18:21:11,242 INFO L854 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2021-12-06 18:21:11,242 INFO L854 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse2 (not .cse0)) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse2))) [2021-12-06 18:21:11,243 INFO L858 garLoopResultBuilder]: For program point L479(lines 479 485) no Hoare annotation was computed. [2021-12-06 18:21:11,243 INFO L854 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4) (or .cse0 (not (<= 1 |old(~waterLevel~0)|)) (not .cse5)) (or .cse0 (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse1 (not (= |old(~waterLevel~0)| 1))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse5 .cse4))) [2021-12-06 18:21:11,243 INFO L854 garLoopResultBuilder]: At program point L215-1(lines 196 220) the Hoare annotation is: (let ((.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 .cse3 (and .cse0 .cse5) (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse5) .cse6)) (or .cse2 .cse6 (not .cse1)))) [2021-12-06 18:21:11,243 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 155) no Hoare annotation was computed. [2021-12-06 18:21:11,243 INFO L854 garLoopResultBuilder]: At program point L327(lines 312 330) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not .cse2)) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1))) [2021-12-06 18:21:11,243 INFO L854 garLoopResultBuilder]: At program point L253(lines 248 256) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (and .cse7 .cse8 .cse3)) (.cse6 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse0 .cse1 (and (<= 1 ~pumpRunning~0) .cse2 (<= 2 ~waterLevel~0) .cse3) .cse4 .cse5) (or .cse0 .cse4 .cse5 (not .cse6)) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse7 .cse8 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) .cse6 (not (<= 2 |old(~waterLevel~0)|)))))) [2021-12-06 18:21:11,244 INFO L858 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2021-12-06 18:21:11,244 INFO L854 garLoopResultBuilder]: At program point L538-2(lines 534 545) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse1 .cse2) (or .cse3 .cse4 (not .cse1)) (or .cse5 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (or .cse3 .cse5 .cse4))) [2021-12-06 18:21:11,244 INFO L854 garLoopResultBuilder]: At program point L472(line 472) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and .cse0 .cse6)) (.cse7 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 .cse4 (not (= |old(~waterLevel~0)| 1))) (or .cse2 .cse3 .cse5 (and (<= 1 ~pumpRunning~0) .cse4 (<= 2 ~waterLevel~0) .cse6) .cse7) (or .cse2 .cse5 .cse7 (not .cse1))))) [2021-12-06 18:21:11,244 INFO L858 garLoopResultBuilder]: For program point L472-1(line 472) no Hoare annotation was computed. [2021-12-06 18:21:11,244 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 138 161) the Hoare annotation is: (let ((.cse7 (not (= |old(~waterLevel~0)| 1))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7) (or .cse4 .cse5 .cse7 (and .cse8 (= ~waterLevel~0 1))) (or .cse4 .cse5 (and .cse8 .cse6 .cse1) .cse2 .cse3) (or .cse5 .cse6 .cse0 .cse2 .cse3) (or .cse4 (and .cse8 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not .cse2)))) [2021-12-06 18:21:11,244 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 141 160) no Hoare annotation was computed. [2021-12-06 18:21:11,244 INFO L858 garLoopResultBuilder]: For program point L1005(line 1005) no Hoare annotation was computed. [2021-12-06 18:21:11,244 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 212) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 138 161) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 217) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L854 garLoopResultBuilder]: At program point L337(line 337) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_valid_product_#res#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L854 garLoopResultBuilder]: At program point L511(lines 507 513) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 18:21:11,245 INFO L861 garLoopResultBuilder]: At program point L119(lines 56 123) the Hoare annotation is: true [2021-12-06 18:21:11,246 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2021-12-06 18:21:11,246 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 86 92) no Hoare annotation was computed. [2021-12-06 18:21:11,246 INFO L854 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2021-12-06 18:21:11,246 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 18:21:11,246 INFO L854 garLoopResultBuilder]: At program point L351(lines 346 353) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2021-12-06 18:21:11,246 INFO L858 garLoopResultBuilder]: For program point L442(lines 442 449) no Hoare annotation was computed. [2021-12-06 18:21:11,246 INFO L858 garLoopResultBuilder]: For program point L442-2(lines 442 449) no Hoare annotation was computed. [2021-12-06 18:21:11,246 INFO L854 garLoopResultBuilder]: At program point L343(lines 331 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= 0 ~systemActive~0)) [2021-12-06 18:21:11,246 INFO L854 garLoopResultBuilder]: At program point L116(lines 65 117) the Hoare annotation is: false [2021-12-06 18:21:11,247 INFO L854 garLoopResultBuilder]: At program point L463(lines 458 465) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,247 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2021-12-06 18:21:11,247 INFO L858 garLoopResultBuilder]: For program point L335-1(lines 335 341) no Hoare annotation was computed. [2021-12-06 18:21:11,247 INFO L861 garLoopResultBuilder]: At program point L426(lines 418 428) the Hoare annotation is: true [2021-12-06 18:21:11,247 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 110) no Hoare annotation was computed. [2021-12-06 18:21:11,247 INFO L854 garLoopResultBuilder]: At program point L104-2(lines 96 111) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse3 (= 0 ~systemActive~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not .cse3)) (and .cse4 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse5 .cse2) (and .cse4 .cse0 .cse1 .cse5 .cse2 .cse3))) [2021-12-06 18:21:11,247 INFO L858 garLoopResultBuilder]: For program point L67(lines 66 115) no Hoare annotation was computed. [2021-12-06 18:21:11,247 INFO L861 garLoopResultBuilder]: At program point L451(lines 432 454) the Hoare annotation is: true [2021-12-06 18:21:11,247 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 111) no Hoare annotation was computed. [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point L414(lines 410 416) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point L113(lines 66 115) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point L526(lines 521 529) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,248 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 82) no Hoare annotation was computed. [2021-12-06 18:21:11,248 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point L518(lines 514 520) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-12-06 18:21:11,248 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 72) no Hoare annotation was computed. [2021-12-06 18:21:11,248 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 170 194) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2 .cse3))) [2021-12-06 18:21:11,249 INFO L854 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0) (not .cse2))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2 .cse3)))) [2021-12-06 18:21:11,249 INFO L854 garLoopResultBuilder]: At program point L308(lines 293 311) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0)))) [2021-12-06 18:21:11,249 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 186) no Hoare annotation was computed. [2021-12-06 18:21:11,249 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 191) no Hoare annotation was computed. [2021-12-06 18:21:11,249 INFO L858 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2021-12-06 18:21:11,249 INFO L854 garLoopResultBuilder]: At program point L620(lines 611 624) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0))) [2021-12-06 18:21:11,249 INFO L858 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2021-12-06 18:21:11,249 INFO L854 garLoopResultBuilder]: At program point L226(lines 221 228) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (<= 1 ~pumpRunning~0) .cse0 (not (<= 2 ~waterLevel~0)) .cse1 .cse2) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2))) [2021-12-06 18:21:11,250 INFO L854 garLoopResultBuilder]: At program point L189(line 189) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2021-12-06 18:21:11,250 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 170 194) no Hoare annotation was computed. [2021-12-06 18:21:11,250 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 170 194) no Hoare annotation was computed. [2021-12-06 18:21:11,250 INFO L858 garLoopResultBuilder]: For program point L615(lines 615 621) no Hoare annotation was computed. [2021-12-06 18:21:11,250 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 546 557) no Hoare annotation was computed. [2021-12-06 18:21:11,250 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 546 557) no Hoare annotation was computed. [2021-12-06 18:21:11,250 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 546 557) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0))) (.cse3 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse1) (or (not (<= 1 ~pumpRunning~0)) .cse2 (= 0 ~systemActive~0) .cse3) (or .cse0 .cse2 .cse1 .cse3))) [2021-12-06 18:21:11,253 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:21:11,254 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:21:11,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:21:11 BoogieIcfgContainer [2021-12-06 18:21:11,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:21:11,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:21:11,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:21:11,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:21:11,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:21:05" (3/4) ... [2021-12-06 18:21:11,287 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-12-06 18:21:11,293 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-06 18:21:11,301 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2021-12-06 18:21:11,302 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 18:21:11,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 18:21:11,303 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 18:21:11,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 18:21:11,304 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:21:11,305 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 18:21:11,323 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-12-06 18:21:11,323 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2021-12-06 18:21:11,323 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2021-12-06 18:21:11,323 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) [2021-12-06 18:21:11,324 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 <= \old(pumpRunning)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) [2021-12-06 18:21:11,324 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) [2021-12-06 18:21:11,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) [2021-12-06 18:21:11,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive))) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || (((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-06 18:21:11,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 0 == systemActive [2021-12-06 18:21:11,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || ((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-06 18:21:11,325 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && (((!(1 <= \old(pumpRunning)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-06 18:21:11,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (1 <= \result && pumpRunning == 0) [2021-12-06 18:21:11,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) [2021-12-06 18:21:11,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && ((!(1 <= \old(pumpRunning)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2021-12-06 18:21:11,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) [2021-12-06 18:21:11,326 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2021-12-06 18:21:11,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 18:21:11,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:21:11,353 INFO L158 Benchmark]: Toolchain (without parser) took 6131.44ms. Allocated memory was 81.8MB in the beginning and 134.2MB in the end (delta: 52.4MB). Free memory was 61.3MB in the beginning and 56.5MB in the end (delta: 4.8MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,353 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:21:11,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.85ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 61.3MB in the beginning and 78.8MB in the end (delta: -17.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.28ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 76.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,354 INFO L158 Benchmark]: Boogie Preprocessor took 22.68ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,354 INFO L158 Benchmark]: RCFGBuilder took 356.48ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 57.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,354 INFO L158 Benchmark]: TraceAbstraction took 5334.35ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 57.4MB in the beginning and 62.8MB in the end (delta: -5.4MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,354 INFO L158 Benchmark]: Witness Printer took 69.00ms. Allocated memory is still 134.2MB. Free memory was 62.8MB in the beginning and 56.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 18:21:11,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.85ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 61.3MB in the beginning and 78.8MB in the end (delta: -17.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.28ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 76.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.68ms. Allocated memory is still 111.1MB. Free memory was 76.3MB in the beginning and 74.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.48ms. Allocated memory is still 111.1MB. Free memory was 74.7MB in the beginning and 57.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5334.35ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 57.4MB in the beginning and 62.8MB in the end (delta: -5.4MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. * Witness Printer took 69.00ms. Allocated memory is still 134.2MB. Free memory was 62.8MB in the beginning and 56.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1005]: 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 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1276 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1251 mSDsluCounter, 3802 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2400 mSDsCounter, 292 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 694 IncrementalHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 292 mSolverCounterUnsat, 1402 mSDtfsCounter, 694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 434 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred in iteration=9, InterpolantAutomatonStates: 66, 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, 12 MinimizatonAttempts, 164 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1157 PreInvPairs, 1291 NumberOfFragments, 1561 HoareAnnotationTreeSize, 1157 FomulaSimplifications, 206 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 44 FomulaSimplificationsInter, 7048 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 888 NumberOfCodeBlocks, 888 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 873 ConstructedInterpolants, 0 QuantifiedInterpolants, 1372 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1391 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 177/184 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: 346]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 507]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (1 <= \result && pumpRunning == 0) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive))) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || (((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning || !(\old(pumpRunning) == 0)) || !(2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || ((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(\old(waterLevel) == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 0 == systemActive - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && (((!(1 <= \old(pumpRunning)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: (((((!(1 <= \old(pumpRunning)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1001]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && ((!(1 <= \old(pumpRunning)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 18:21:11,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4486b76a-9652-4389-abfe-144a54fbd9c5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE