./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt --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 3bccdc584252d8769fe0e51833273c5645b3ab26 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-4e77c04 [2021-10-13 01:25:34,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:25:34,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:25:34,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:25:34,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:25:34,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:25:34,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:25:34,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:25:34,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:25:34,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:25:34,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:25:34,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:25:34,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:25:34,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:25:34,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:25:34,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:25:34,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:25:34,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:25:34,800 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:25:34,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:25:34,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:25:34,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:25:34,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:25:34,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:25:34,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:25:34,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:25:34,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:25:34,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:25:34,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:25:34,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:25:34,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:25:34,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:25:34,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:25:34,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:25:34,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:25:34,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:25:34,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:25:34,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:25:34,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:25:34,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:25:34,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:25:34,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:25:34,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:25:34,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:25:34,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:25:34,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:25:34,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:25:34,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:25:34,882 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:25:34,883 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:25:34,883 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:25:34,883 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:25:34,884 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:25:34,885 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:25:34,885 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:25:34,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:25:34,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:25:34,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:25:34,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:25:34,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:25:34,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:25:34,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:25:34,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:25:34,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:25:34,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:25:34,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:25:34,887 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:25:34,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:25:34,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:25:34,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:25:34,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:25:34,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:25:34,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:25:34,889 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:25:34,890 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:25:34,891 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_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bccdc584252d8769fe0e51833273c5645b3ab26 [2021-10-13 01:25:35,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:25:35,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:25:35,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:25:35,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:25:35,203 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:25:35,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2021-10-13 01:25:35,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/data/dd201d432/dcd8665b240b44ba96fdfeb2ef56b1b7/FLAG1d09e63e2 [2021-10-13 01:25:35,765 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:25:35,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c [2021-10-13 01:25:35,792 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/data/dd201d432/dcd8665b240b44ba96fdfeb2ef56b1b7/FLAG1d09e63e2 [2021-10-13 01:25:36,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/data/dd201d432/dcd8665b240b44ba96fdfeb2ef56b1b7 [2021-10-13 01:25:36,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:25:36,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:25:36,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:36,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:25:36,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:25:36,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6babeb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36, skipping insertion in model container [2021-10-13 01:25:36,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:25:36,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:25:36,361 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_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1281,1294] [2021-10-13 01:25:36,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:36,555 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:25:36,583 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_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/sv-benchmarks/c/product-lines/minepump_spec3_product62.cil.c[1281,1294] [2021-10-13 01:25:36,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:36,662 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:25:36,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36 WrapperNode [2021-10-13 01:25:36,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:36,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:36,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:25:36,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:25:36,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:36,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:25:36,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:25:36,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:25:36,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:25:36,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:25:36,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:25:36,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:25:36,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (1/1) ... [2021-10-13 01:25:36,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:36,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:36,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:36,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:25:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:25:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:25:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:25:36,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:25:38,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:25:38,041 INFO L299 CfgBuilder]: Removed 356 assume(true) statements. [2021-10-13 01:25:38,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:38 BoogieIcfgContainer [2021-10-13 01:25:38,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:25:38,045 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:25:38,045 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:25:38,048 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:25:38,049 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:38,050 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:25:36" (1/3) ... [2021-10-13 01:25:38,051 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11516ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:25:38, skipping insertion in model container [2021-10-13 01:25:38,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:38,051 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:36" (2/3) ... [2021-10-13 01:25:38,052 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11516ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:25:38, skipping insertion in model container [2021-10-13 01:25:38,052 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:38,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:38" (3/3) ... [2021-10-13 01:25:38,053 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product62.cil.c [2021-10-13 01:25:38,097 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:25:38,098 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:25:38,098 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:25:38,098 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:25:38,098 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:25:38,098 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:25:38,098 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:25:38,099 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:25:38,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5066079295154184) internal successors, (342), 227 states have internal predecessors, (342), 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) [2021-10-13 01:25:38,154 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-13 01:25:38,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:38,154 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:38,162 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,162 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:25:38,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 228 states, 227 states have (on average 1.5066079295154184) internal successors, (342), 227 states have internal predecessors, (342), 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) [2021-10-13 01:25:38,175 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2021-10-13 01:25:38,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:38,175 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:38,177 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,177 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,182 INFO L791 eck$LassoCheckResult]: Stem: 215#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 153#L-1true havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 69#L588true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 157#L596true main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 107#L1004true assume 0 != main_~tmp~11; 123#L981true havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 105#L69-1true [2021-10-13 01:25:38,182 INFO L793 eck$LassoCheckResult]: Loop: 105#L69-1true assume !false; 128#L866true assume test_~splverifierCounter~0 < 4; 204#L867true test_~tmp~10 := test_#t~nondet79;havoc test_#t~nondet79; 14#L875true assume !(0 != test_~tmp~10); 89#L875-1true test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 39#L885true assume !(0 != test_~tmp___0~3); 226#L885-1true test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 59#L895true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 94#L903-2true assume !(0 != ~pumpRunning~0); 31#L613true assume !(0 != ~systemActive~0); 40#L620true havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 56#L503-5true __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 117#L63true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 105#L69-1true [2021-10-13 01:25:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:38,188 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:25:38,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:38,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474618702] [2021-10-13 01:25:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:38,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:38,439 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:38,594 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:38,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1674172490, now seen corresponding path program 1 times [2021-10-13 01:25:38,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:38,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086026138] [2021-10-13 01:25:38,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:38,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:38,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:38,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086026138] [2021-10-13 01:25:38,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086026138] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:38,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:38,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:38,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510877434] [2021-10-13 01:25:38,662 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:25:38,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:38,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:38,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:38,680 INFO L87 Difference]: Start difference. First operand has 228 states, 227 states have (on average 1.5066079295154184) internal successors, (342), 227 states have internal predecessors, (342), 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-13 01:25:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:38,748 INFO L93 Difference]: Finished difference Result 228 states and 332 transitions. [2021-10-13 01:25:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:38,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 228 states and 332 transitions. [2021-10-13 01:25:38,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-13 01:25:38,772 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 228 states to 221 states and 324 transitions. [2021-10-13 01:25:38,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2021-10-13 01:25:38,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 221 [2021-10-13 01:25:38,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 324 transitions. [2021-10-13 01:25:38,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:25:38,783 INFO L681 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2021-10-13 01:25:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 324 transitions. [2021-10-13 01:25:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2021-10-13 01:25:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 221 states have (on average 1.4660633484162895) internal successors, (324), 220 states have internal predecessors, (324), 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) [2021-10-13 01:25:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 324 transitions. [2021-10-13 01:25:38,826 INFO L704 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2021-10-13 01:25:38,826 INFO L587 BuchiCegarLoop]: Abstraction has 221 states and 324 transitions. [2021-10-13 01:25:38,826 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:25:38,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 221 states and 324 transitions. [2021-10-13 01:25:38,829 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-13 01:25:38,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:38,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:38,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:25:38,831 INFO L791 eck$LassoCheckResult]: Stem: 682#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 659#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 579#L588 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 580#L596 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 627#L1004 assume 0 != main_~tmp~11; 628#L981 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 493#L69-1 [2021-10-13 01:25:38,831 INFO L793 eck$LassoCheckResult]: Loop: 493#L69-1 assume !false; 626#L866 assume test_~splverifierCounter~0 < 4; 640#L867 test_~tmp~10 := test_#t~nondet79;havoc test_#t~nondet79; 487#L875 assume !(0 != test_~tmp~10); 489#L875-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 534#L885 assume !(0 != test_~tmp___0~3); 535#L885-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 565#L895 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 566#L903-2 assume !(0 != ~pumpRunning~0); 520#L613 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 521#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 517#L671-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 518#L645-3 assume !(0 == ~pumpRunning~0); 507#L620 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 537#L503-5 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 561#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 493#L69-1 [2021-10-13 01:25:38,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:38,832 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:25:38,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:38,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781661036] [2021-10-13 01:25:38,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:38,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:38,905 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:39,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:39,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:39,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1243674316, now seen corresponding path program 1 times [2021-10-13 01:25:39,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:39,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759789037] [2021-10-13 01:25:39,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:39,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:39,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:39,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759789037] [2021-10-13 01:25:39,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759789037] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:39,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:39,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:39,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693365715] [2021-10-13 01:25:39,060 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:25:39,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:39,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:25:39,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:25:39,062 INFO L87 Difference]: Start difference. First operand 221 states and 324 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-13 01:25:39,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:39,185 INFO L93 Difference]: Finished difference Result 223 states and 309 transitions. [2021-10-13 01:25:39,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:25:39,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 309 transitions. [2021-10-13 01:25:39,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-10-13 01:25:39,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 309 transitions. [2021-10-13 01:25:39,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2021-10-13 01:25:39,200 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2021-10-13 01:25:39,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 309 transitions. [2021-10-13 01:25:39,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:25:39,207 INFO L681 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2021-10-13 01:25:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 309 transitions. [2021-10-13 01:25:39,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2021-10-13 01:25:39,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.3856502242152466) internal successors, (309), 222 states have internal predecessors, (309), 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) [2021-10-13 01:25:39,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 309 transitions. [2021-10-13 01:25:39,230 INFO L704 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2021-10-13 01:25:39,230 INFO L587 BuchiCegarLoop]: Abstraction has 223 states and 309 transitions. [2021-10-13 01:25:39,230 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:25:39,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 309 transitions. [2021-10-13 01:25:39,232 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 152 [2021-10-13 01:25:39,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:39,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:39,236 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:25:39,237 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, 1] [2021-10-13 01:25:39,238 INFO L791 eck$LassoCheckResult]: Stem: 1090#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1010#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 1011#L588 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 1019#L596 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 1020#L1004 assume 0 != main_~tmp~11; 937#L981 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 926#L69-1 [2021-10-13 01:25:39,239 INFO L793 eck$LassoCheckResult]: Loop: 926#L69-1 assume !false; 948#L866 assume test_~splverifierCounter~0 < 4; 949#L867 test_~tmp~10 := test_#t~nondet79;havoc test_#t~nondet79; 955#L875 assume !(0 != test_~tmp~10); 957#L875-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 1028#L885 assume !(0 != test_~tmp___0~3); 974#L885-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 1060#L895 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1061#L903-2 assume !(0 != ~pumpRunning~0); 1007#L613 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1002#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1003#L671-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 942#L645-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 943#L543-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1021#L548-3 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 915#L816-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 916#L816-11 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 1014#L822-3 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 1015#L649-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1031#L620 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 1032#L503-5 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 924#L63 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 926#L69-1 [2021-10-13 01:25:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:39,240 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:25:39,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:39,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406697415] [2021-10-13 01:25:39,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:39,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:39,303 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:39,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:39,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1113090816, now seen corresponding path program 1 times [2021-10-13 01:25:39,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:39,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763635845] [2021-10-13 01:25:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:39,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:39,399 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:39,407 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:39,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:39,408 INFO L82 PathProgramCache]: Analyzing trace with hash 140214310, now seen corresponding path program 1 times [2021-10-13 01:25:39,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:39,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925259553] [2021-10-13 01:25:39,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:39,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:39,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:25:39,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925259553] [2021-10-13 01:25:39,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925259553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:25:39,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:25:39,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:25:39,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899176005] [2021-10-13 01:25:39,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:25:39,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:25:39,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:25:39,748 INFO L87 Difference]: Start difference. First operand 223 states and 309 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-13 01:25:40,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:25:40,007 INFO L93 Difference]: Finished difference Result 747 states and 1037 transitions. [2021-10-13 01:25:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:25:40,008 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 747 states and 1037 transitions. [2021-10-13 01:25:40,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 532 [2021-10-13 01:25:40,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 747 states to 747 states and 1037 transitions. [2021-10-13 01:25:40,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 747 [2021-10-13 01:25:40,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 747 [2021-10-13 01:25:40,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 747 states and 1037 transitions. [2021-10-13 01:25:40,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:25:40,025 INFO L681 BuchiCegarLoop]: Abstraction has 747 states and 1037 transitions. [2021-10-13 01:25:40,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states and 1037 transitions. [2021-10-13 01:25:40,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 440. [2021-10-13 01:25:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 440 states have (on average 1.3727272727272728) internal successors, (604), 439 states have internal predecessors, (604), 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) [2021-10-13 01:25:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 604 transitions. [2021-10-13 01:25:40,046 INFO L704 BuchiCegarLoop]: Abstraction has 440 states and 604 transitions. [2021-10-13 01:25:40,047 INFO L587 BuchiCegarLoop]: Abstraction has 440 states and 604 transitions. [2021-10-13 01:25:40,047 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:25:40,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 440 states and 604 transitions. [2021-10-13 01:25:40,050 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 304 [2021-10-13 01:25:40,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:40,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:40,051 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:25:40,051 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, 1, 1, 1] [2021-10-13 01:25:40,052 INFO L791 eck$LassoCheckResult]: Stem: 2107#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2003#L-1 havoc main_#res;havoc main_#t~ret83, main_~retValue_acc~13, main_~tmp~11;havoc main_~retValue_acc~13;havoc main_~tmp~11; 2004#L588 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 2013#L596 main_#t~ret83 := valid_product_#res;main_~tmp~11 := main_#t~ret83;havoc main_#t~ret83; 2014#L1004 assume 0 != main_~tmp~11; 1925#L981 havoc test_#t~nondet79, test_#t~nondet80, test_#t~nondet81, test_#t~nondet82, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1926#L69-1 [2021-10-13 01:25:40,052 INFO L793 eck$LassoCheckResult]: Loop: 1926#L69-1 assume !false; 2303#L866 assume test_~splverifierCounter~0 < 4; 2094#L867 test_~tmp~10 := test_#t~nondet79;havoc test_#t~nondet79; 1944#L875 assume !(0 != test_~tmp~10); 1946#L875-1 test_~tmp___0~3 := test_#t~nondet80;havoc test_#t~nondet80; 2022#L885 assume !(0 != test_~tmp___0~3); 2023#L885-1 test_~tmp___2~0 := test_#t~nondet81;havoc test_#t~nondet81; 2062#L895 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2063#L903-2 assume !(0 != ~pumpRunning~0); 2000#L613 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1993#L697 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 1994#L671-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1931#L645-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret77, isHighWaterLevel_~retValue_acc~11, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~11;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1932#L543-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2173#L548-3 isHighWaterLevel_#t~ret77 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret77;havoc isHighWaterLevel_#t~ret77; 2172#L816-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 2171#L816-11 isHighWaterLevel_~retValue_acc~11 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~11; 2008#L822-3 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 2009#L649-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 2031#L620 havoc __utac_acc__Specification3_spec__1_#t~ret7, __utac_acc__Specification3_spec__1_#t~ret8, __utac_acc__Specification3_spec__1_#t~ret9, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;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; 2054#L503-5 __utac_acc__Specification3_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret7;havoc __utac_acc__Specification3_spec__1_#t~ret7; 2055#L63 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2074#L535 __utac_acc__Specification3_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret8;havoc __utac_acc__Specification3_spec__1_#t~ret8; 2075#L69 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1926#L69-1 [2021-10-13 01:25:40,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:40,053 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-13 01:25:40,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:40,053 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31377169] [2021-10-13 01:25:40,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:40,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,079 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:40,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:40,113 INFO L82 PathProgramCache]: Analyzing trace with hash -233404718, now seen corresponding path program 1 times [2021-10-13 01:25:40,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:40,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697823315] [2021-10-13 01:25:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:40,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,119 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1601978488, now seen corresponding path program 1 times [2021-10-13 01:25:40,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:40,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349754203] [2021-10-13 01:25:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:40,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,156 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:40,197 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:26:34,290 WARN L207 SmtUtils]: Spent 53.75 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:27:25,713 WARN L207 SmtUtils]: Spent 25.60 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:27:25,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:27:25 BoogieIcfgContainer [2021-10-13 01:27:25,814 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:27:25,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:27:25,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:27:25,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:27:25,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:38" (3/4) ... [2021-10-13 01:27:25,817 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:27:25,877 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:27:25,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:27:25,878 INFO L168 Benchmark]: Toolchain (without parser) took 109781.69 ms. Allocated memory was 104.9 MB in the beginning and 182.5 MB in the end (delta: 77.6 MB). Free memory was 65.7 MB in the beginning and 103.4 MB in the end (delta: -37.7 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,878 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:27:25,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.12 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 70.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.07 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 64.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,880 INFO L168 Benchmark]: Boogie Preprocessor took 67.74 ms. Allocated memory is still 104.9 MB. Free memory was 64.9 MB in the beginning and 61.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,881 INFO L168 Benchmark]: RCFGBuilder took 1219.18 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 83.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,881 INFO L168 Benchmark]: BuchiAutomizer took 107769.40 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 82.4 MB in the beginning and 106.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,882 INFO L168 Benchmark]: Witness Printer took 62.70 ms. Allocated memory is still 182.5 MB. Free memory was 106.4 MB in the beginning and 103.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:27:25,885 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 104.9 MB. Free memory is still 83.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.12 ms. Allocated memory is still 104.9 MB. Free memory was 65.5 MB in the beginning and 70.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.07 ms. Allocated memory is still 104.9 MB. Free memory was 70.8 MB in the beginning and 64.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.74 ms. Allocated memory is still 104.9 MB. Free memory was 64.9 MB in the beginning and 61.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1219.18 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 61.3 MB in the beginning and 83.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 107769.40 ms. Allocated memory was 140.5 MB in the beginning and 182.5 MB in the end (delta: 41.9 MB). Free memory was 82.4 MB in the beginning and 106.4 MB in the end (delta: -23.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB. * Witness Printer took 62.70 ms. Allocated memory is still 182.5 MB. Free memory was 106.4 MB in the beginning and 103.4 MB in the end (delta: 3.0 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 440 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 107.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 106.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 71.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 307 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 440 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 917 SDtfs, 1517 SDslu, 1203 SDs, 0 SdLazy, 204 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 246.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 865]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1, NULL=51450, NULL=0, NULL=0, NULL=51455, methaneLevelCritical=0, NULL=0, NULL=51448, NULL=51456, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79ae855a=0, NULL=51465, NULL=0, NULL=51463, tmp=0, cleanupTimeShifts=4, NULL=51445, tmp=1, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3048933e=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=51444, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, NULL=0, NULL=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=51447, NULL=51459, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fb7328c=0, head=0, NULL=0, tmp=0, NULL=51442, NULL=0, NULL=0, NULL=0, NULL=51452, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a15e2f0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4414aa2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e666223=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25a34357=0, NULL=51449, NULL=51451, NULL=51446, tmp___0=0, NULL=51462, NULL=0, NULL=0, tmp___0=1, NULL=51464, tmp=0, NULL=51443, NULL=51458, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10872c5f=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a8f225f=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ba3a34f=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@703d88ab=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=24802, retValue_acc=0, \result=0, NULL=51457, NULL=51461, NULL=51466, retValue_acc=1, NULL=24801, tmp=0, tmp___2=72, splverifierCounter=0, NULL=0, \result=0, NULL=51441, NULL=51453, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbbbad1=0, NULL=51454, NULL=51460, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L922] int cleanupTimeShifts = 4; [L995] int retValue_acc ; [L996] int tmp ; [L592] int retValue_acc ; [L595] retValue_acc = 1 [L596] return (retValue_acc); [L1002] tmp = valid_product() [L1004] COND TRUE \read(tmp) [L856] int splverifierCounter ; [L857] int tmp ; [L858] int tmp___0 ; [L859] int tmp___1 ; [L860] int tmp___2 ; [L863] splverifierCounter = 0 Loop: [L865] COND TRUE 1 [L867] COND TRUE splverifierCounter < 4 [L873] tmp = __VERIFIER_nondet_int() [L875] COND FALSE !(\read(tmp)) [L883] tmp___0 = __VERIFIER_nondet_int() [L885] COND FALSE !(\read(tmp___0)) [L893] tmp___2 = __VERIFIER_nondet_int() [L895] COND TRUE \read(tmp___2) [L849] systemActive = 1 [L613] COND FALSE !(\read(pumpRunning)) [L620] COND TRUE \read(systemActive) [L694] int tmp ; [L697] COND FALSE !(\read(pumpRunning)) [L668] int tmp ; [L671] COND FALSE !(\read(pumpRunning)) [L642] int tmp ; [L645] COND TRUE ! pumpRunning [L808] int retValue_acc ; [L809] int tmp ; [L810] int tmp___0 ; [L540] int retValue_acc ; [L543] COND TRUE waterLevel < 2 [L544] retValue_acc = 1 [L545] return (retValue_acc); [L814] tmp = isHighWaterSensorDry() [L816] COND TRUE \read(tmp) [L817] tmp___0 = 0 [L821] retValue_acc = tmp___0 [L822] return (retValue_acc); [L647] tmp = isHighWaterLevel() [L649] COND FALSE !(\read(tmp)) [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); [L67] tmp___0 = getWaterLevel() [L69] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:27:25,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d02f1c-b1eb-4a0b-95ac-b5e3cc9ce8f9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...