./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:50:47,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:50:47,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:50:47,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:50:47,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:50:47,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:50:47,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:50:47,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:50:47,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:50:47,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:50:47,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:50:47,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:50:47,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:50:47,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:50:47,693 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:50:47,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:50:47,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:50:47,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:50:47,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:50:47,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:50:47,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:50:47,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:50:47,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:50:47,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:50:47,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:50:47,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:50:47,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:50:47,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:50:47,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:50:47,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:50:47,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:50:47,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:50:47,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:50:47,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:50:47,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:50:47,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:50:47,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:50:47,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:50:47,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:50:47,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:50:47,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:50:47,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 08:50:47,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:50:47,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:50:47,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:50:47,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:50:47,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:50:47,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:50:47,793 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:50:47,793 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:50:47,793 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:50:47,794 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:50:47,795 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:50:47,795 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:50:47,795 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:50:47,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:50:47,795 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:50:47,796 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:50:47,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:50:47,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:50:47,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:50:47,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:50:47,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:50:47,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:50:47,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:50:47,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:50:47,797 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:50:47,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:50:47,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:50:47,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:50:47,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:50:47,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:50:47,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:50:47,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:50:47,802 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:50:47,803 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2021-10-28 08:50:48,092 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:50:48,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:50:48,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:50:48,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:50:48,127 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:50:48,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-10-28 08:50:48,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/data/634a9944c/4f8f5bfc7d304fecb8f1cb97ee4d3f66/FLAG655d8ec92 [2021-10-28 08:50:48,777 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:50:48,778 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2021-10-28 08:50:48,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/data/634a9944c/4f8f5bfc7d304fecb8f1cb97ee4d3f66/FLAG655d8ec92 [2021-10-28 08:50:49,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/data/634a9944c/4f8f5bfc7d304fecb8f1cb97ee4d3f66 [2021-10-28 08:50:49,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:50:49,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:50:49,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:50:49,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:50:49,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:50:49,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,068 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126b7610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49, skipping insertion in model container [2021-10-28 08:50:49,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:50:49,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:50:49,449 WARN L228 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_1519180f-ddef-424f-aa1f-4564e75a5650/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-10-28 08:50:49,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:50:49,521 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:50:49,557 WARN L228 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_1519180f-ddef-424f-aa1f-4564e75a5650/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2021-10-28 08:50:49,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:50:49,619 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:50:49,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49 WrapperNode [2021-10-28 08:50:49,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:50:49,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:50:49,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:50:49,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:50:49,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:50:49,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:50:49,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:50:49,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:50:49,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:50:49,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:50:49,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:50:49,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:50:49,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (1/1) ... [2021-10-28 08:50:49,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:50:49,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:50:49,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:50:49,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:50:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:50:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:50:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:50:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:50:50,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:50:50,987 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-10-28 08:50:50,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:50:50 BoogieIcfgContainer [2021-10-28 08:50:50,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:50:50,991 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:50:50,991 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:50:50,996 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:50:50,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:50:50,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:50:49" (1/3) ... [2021-10-28 08:50:50,999 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e4c8181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:50:50, skipping insertion in model container [2021-10-28 08:50:50,999 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:50:50,999 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:50:49" (2/3) ... [2021-10-28 08:50:51,000 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e4c8181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:50:50, skipping insertion in model container [2021-10-28 08:50:51,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:50:51,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:50:50" (3/3) ... [2021-10-28 08:50:51,001 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2021-10-28 08:50:51,045 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:50:51,045 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:50:51,045 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:50:51,045 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:50:51,045 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:50:51,045 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:50:51,045 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:50:51,045 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:50:51,063 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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) [2021-10-28 08:50:51,087 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 08:50:51,087 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:50:51,088 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:50:51,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:51,095 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:51,096 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:50:51,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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) [2021-10-28 08:50:51,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-28 08:50:51,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:50:51,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:50:51,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:51,110 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:51,119 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 35#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 100#L938true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 111#L946true main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 85#L902true assume 0 != main_~tmp~8; 11#L875true ~methAndRunningLastTime~0 := 0; 20#L313true havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 76#L324-1true [2021-10-28 08:50:51,129 INFO L793 eck$LassoCheckResult]: Loop: 76#L324-1true assume !false; 45#L252true assume test_~splverifierCounter~0 < 4; 71#L253true test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 114#L261true assume !(0 != test_~tmp~3); 67#L261-1true test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 26#L271true assume !(0 != test_~tmp___0~1); 18#L271-1true test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 13#L281true assume 0 != test_~tmp___2~0; 82#L287-2true assume !(0 != ~pumpRunning~0); 106#L67true assume !(0 != ~systemActive~0); 63#L74true havoc __utac_acc__Specification2_spec__2_#t~ret31, __utac_acc__Specification2_spec__2_#t~ret32, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 89#L390-1true __utac_acc__Specification2_spec__2_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret31;havoc __utac_acc__Specification2_spec__2_#t~ret31; 15#L324true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 76#L324-1true [2021-10-28 08:50:51,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 08:50:51,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:51,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319571089] [2021-10-28 08:50:51,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:51,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:51,458 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:51,661 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:50:51,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:51,664 INFO L85 PathProgramCache]: Analyzing trace with hash 4292362, now seen corresponding path program 1 times [2021-10-28 08:50:51,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:51,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681181633] [2021-10-28 08:50:51,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:51,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:51,673 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:51,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:50:51,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash 837588868, now seen corresponding path program 1 times [2021-10-28 08:50:51,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:51,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163947838] [2021-10-28 08:50:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:51,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:50:51,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:50:51,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:50:51,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163947838] [2021-10-28 08:50:51,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163947838] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:50:51,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:50:51,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:50:51,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685819801] [2021-10-28 08:50:52,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:50:52,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:50:52,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:50:52,072 INFO L87 Difference]: Start difference. First operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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) Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 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) [2021-10-28 08:50:52,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:50:52,376 INFO L93 Difference]: Finished difference Result 112 states and 161 transitions. [2021-10-28 08:50:52,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:50:52,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 161 transitions. [2021-10-28 08:50:52,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 08:50:52,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 105 states and 154 transitions. [2021-10-28 08:50:52,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2021-10-28 08:50:52,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2021-10-28 08:50:52,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 154 transitions. [2021-10-28 08:50:52,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:50:52,406 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-28 08:50:52,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 154 transitions. [2021-10-28 08:50:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-10-28 08:50:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.4666666666666666) internal successors, (154), 104 states have internal predecessors, (154), 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) [2021-10-28 08:50:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2021-10-28 08:50:52,455 INFO L704 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-28 08:50:52,456 INFO L587 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-28 08:50:52,457 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:50:52,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 154 transitions. [2021-10-28 08:50:52,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-28 08:50:52,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:50:52,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:50:52,463 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:52,463 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:52,464 INFO L791 eck$LassoCheckResult]: Stem: 346#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 295#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 296#L938 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 345#L946 main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 340#L902 assume 0 != main_~tmp~8; 257#L875 ~methAndRunningLastTime~0 := 0; 258#L313 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 265#L324-1 [2021-10-28 08:50:52,464 INFO L793 eck$LassoCheckResult]: Loop: 265#L324-1 assume !false; 310#L252 assume test_~splverifierCounter~0 < 4; 311#L253 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 333#L261 assume !(0 != test_~tmp~3); 314#L261-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 282#L271 assume !(0 != test_~tmp___0~1); 270#L271-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 259#L281 assume 0 != test_~tmp___2~0; 261#L287-2 assume !(0 != ~pumpRunning~0); 338#L67 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 334#L125 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 307#L99-1 assume !(0 == ~pumpRunning~0); 303#L74 havoc __utac_acc__Specification2_spec__2_#t~ret31, __utac_acc__Specification2_spec__2_#t~ret32, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 327#L390-1 __utac_acc__Specification2_spec__2_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret31;havoc __utac_acc__Specification2_spec__2_#t~ret31; 263#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 265#L324-1 [2021-10-28 08:50:52,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 08:50:52,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:52,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570034094] [2021-10-28 08:50:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:52,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,548 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:50:52,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:52,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1684672225, now seen corresponding path program 1 times [2021-10-28 08:50:52,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:52,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89423977] [2021-10-28 08:50:52,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:52,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:50:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:50:52,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:50:52,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89423977] [2021-10-28 08:50:52,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89423977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:50:52,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:50:52,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:50:52,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336498057] [2021-10-28 08:50:52,690 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:50:52,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:50:52,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:50:52,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:50:52,699 INFO L87 Difference]: Start difference. First operand 105 states and 154 transitions. cyclomatic complexity: 51 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-28 08:50:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:50:52,818 INFO L93 Difference]: Finished difference Result 149 states and 208 transitions. [2021-10-28 08:50:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:50:52,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 208 transitions. [2021-10-28 08:50:52,826 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-28 08:50:52,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 208 transitions. [2021-10-28 08:50:52,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-28 08:50:52,831 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-28 08:50:52,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 208 transitions. [2021-10-28 08:50:52,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:50:52,834 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-28 08:50:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 208 transitions. [2021-10-28 08:50:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-10-28 08:50:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.395973154362416) internal successors, (208), 148 states have internal predecessors, (208), 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) [2021-10-28 08:50:52,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2021-10-28 08:50:52,855 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-28 08:50:52,856 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-28 08:50:52,856 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:50:52,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 208 transitions. [2021-10-28 08:50:52,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-28 08:50:52,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:50:52,859 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:50:52,860 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:52,861 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:50:52,861 INFO L791 eck$LassoCheckResult]: Stem: 617#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 559#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~9, main_~tmp~8;havoc main_~retValue_acc~9;havoc main_~tmp~8; 560#L938 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 615#L946 main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 610#L902 assume 0 != main_~tmp~8; 517#L875 ~methAndRunningLastTime~0 := 0; 518#L313 havoc test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 526#L324-1 [2021-10-28 08:50:52,861 INFO L793 eck$LassoCheckResult]: Loop: 526#L324-1 assume !false; 575#L252 assume test_~splverifierCounter~0 < 4; 576#L253 test_~tmp~3 := test_#t~nondet27;havoc test_#t~nondet27; 634#L261 assume !(0 != test_~tmp~3); 632#L261-1 test_~tmp___0~1 := test_#t~nondet28;havoc test_#t~nondet28; 631#L271 assume !(0 != test_~tmp___0~1); 530#L271-1 test_~tmp___2~0 := test_#t~nondet29;havoc test_#t~nondet29; 531#L281 assume 0 != test_~tmp___2~0; 606#L287-2 assume !(0 != ~pumpRunning~0); 607#L67 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 602#L125 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 572#L99-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 555#L430-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 556#L435-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 594#L227-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 561#L227-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 562#L233-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 566#L103-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 568#L74 havoc __utac_acc__Specification2_spec__2_#t~ret31, __utac_acc__Specification2_spec__2_#t~ret32, __utac_acc__Specification2_spec__2_~tmp~4, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~4;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 592#L390-1 __utac_acc__Specification2_spec__2_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~4 := __utac_acc__Specification2_spec__2_#t~ret31;havoc __utac_acc__Specification2_spec__2_#t~ret31; 524#L324 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4);~methAndRunningLastTime~0 := 0; 526#L324-1 [2021-10-28 08:50:52,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:52,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 08:50:52,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:52,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120329510] [2021-10-28 08:50:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:52,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,918 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,984 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:50:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:52,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1751932845, now seen corresponding path program 1 times [2021-10-28 08:50:52,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:52,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141243444] [2021-10-28 08:50:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:52,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,991 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:52,999 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:50:53,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:50:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash -769892825, now seen corresponding path program 1 times [2021-10-28 08:50:53,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:50:53,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465255520] [2021-10-28 08:50:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:50:53,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:50:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:53,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:50:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:50:53,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:51:57,882 WARN L207 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 08:53:03,720 WARN L207 SmtUtils]: Spent 30.84 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 08:53:03,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:53:03 BoogieIcfgContainer [2021-10-28 08:53:03,902 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:53:03,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:53:03,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:53:03,903 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:53:03,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:50:50" (3/4) ... [2021-10-28 08:53:03,905 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 08:53:03,962 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:53:03,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:53:03,963 INFO L168 Benchmark]: Toolchain (without parser) took 134906.24 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 68.7 MB in the beginning and 107.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 79.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,964 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 53.4 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:53:03,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.64 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 69.1 MB in the end (delta: -685.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.52 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 65.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,966 INFO L168 Benchmark]: Boogie Preprocessor took 61.72 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 63.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,966 INFO L168 Benchmark]: RCFGBuilder took 1218.11 ms. Allocated memory is still 102.8 MB. Free memory was 62.9 MB in the beginning and 62.4 MB in the end (delta: 467.6 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,967 INFO L168 Benchmark]: BuchiAutomizer took 132911.18 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 62.2 MB in the beginning and 30.3 MB in the end (delta: 31.9 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,968 INFO L168 Benchmark]: Witness Printer took 59.91 ms. Allocated memory is still 140.5 MB. Free memory was 30.3 MB in the beginning and 107.1 MB in the end (delta: -76.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:53:03,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 53.4 MB in the beginning and 53.4 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 559.64 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 69.1 MB in the end (delta: -685.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.52 ms. Allocated memory is still 102.8 MB. Free memory was 69.1 MB in the beginning and 65.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.72 ms. Allocated memory is still 102.8 MB. Free memory was 65.5 MB in the beginning and 63.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1218.11 ms. Allocated memory is still 102.8 MB. Free memory was 62.9 MB in the beginning and 62.4 MB in the end (delta: 467.6 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 132911.18 ms. Allocated memory was 102.8 MB in the beginning and 140.5 MB in the end (delta: 37.7 MB). Free memory was 62.2 MB in the beginning and 30.3 MB in the end (delta: 31.9 MB). Peak memory consumption was 74.7 MB. Max. memory is 16.1 GB. * Witness Printer took 59.91 ms. Allocated memory is still 140.5 MB. Free memory was 30.3 MB in the beginning and 107.1 MB in the end (delta: -76.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 149 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 132.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 132.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 149 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 585 SDslu, 65 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 251]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=30793} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=30793, NULL=30814, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1746d15e=0, NULL=0, NULL=30804, NULL=30817, methaneLevelCritical=0, retValue_acc=1, tmp=0, retValue_acc=0, tmp___1=0, NULL=30800, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30dbcf2f=0, NULL=30811, cleanupTimeShifts=4, NULL=30820, NULL=30819, NULL=0, waterLevel=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e3a4e99=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36a1d96a=57, NULL=30808, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f4ea3e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13bade15=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75d36226=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9e778c7=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f9bf054=0, NULL=30799, NULL=0, NULL=0, NULL=30797, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e7d9a59=0, NULL=0, tmp___0=0, methAndRunningLastTime=0, NULL=30806, tmp=0, head=0, NULL=30798, NULL=30803, NULL=30801, NULL=0, NULL=0, NULL=0, NULL=30818, NULL=30816, retValue_acc=0, NULL=30805, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=30815, NULL=30807, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=30795, \result=0, NULL=30796, NULL=0, NULL=30812, NULL=0, NULL=0, NULL=30821, tmp___2=57, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=30794, NULL=30809, NULL=30802, NULL=30810, NULL=0, NULL=0, tmp=0, NULL=30813} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L307] int methAndRunningLastTime ; [L347] int waterLevel = 1; [L348] int methaneLevelCritical = 0; [L619] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L816] int cleanupTimeShifts = 4; [L893] int retValue_acc ; [L894] int tmp ; [L942] int retValue_acc ; [L945] retValue_acc = 1 [L946] return (retValue_acc); [L900] tmp = valid_product() [L902] COND TRUE \read(tmp) [L312] methAndRunningLastTime = 0 [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 Loop: [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND FALSE !(\read(tmp)) [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND TRUE \read(tmp___2) [L67] COND FALSE !(\read(pumpRunning)) [L74] COND TRUE \read(systemActive) [L122] int tmp ; [L125] COND FALSE !(\read(pumpRunning)) [L96] int tmp ; [L99] COND TRUE ! pumpRunning [L219] int retValue_acc ; [L220] int tmp ; [L221] int tmp___0 ; [L427] int retValue_acc ; [L430] COND TRUE waterLevel < 2 [L431] retValue_acc = 1 [L432] return (retValue_acc); [L225] tmp = isHighWaterSensorDry() [L227] COND TRUE \read(tmp) [L228] tmp___0 = 0 [L232] retValue_acc = tmp___0 [L233] return (retValue_acc); [L101] tmp = isHighWaterLevel() [L103] COND FALSE !(\read(tmp)) [L317] int tmp ; [L318] int tmp___0 ; [L386] int retValue_acc ; [L389] retValue_acc = methaneLevelCritical [L390] return (retValue_acc); [L322] tmp = isMethaneLevelCritical() [L324] COND FALSE !(\read(tmp)) [L340] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 08:53:04,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1519180f-ddef-424f-aa1f-4564e75a5650/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...