./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc --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 d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:56:56,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:56:56,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:56:56,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:56:56,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:56:56,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:56:56,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:56:56,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:56:56,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:56:56,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:56:56,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:56:56,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:56:56,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:56:56,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:56:56,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:56:56,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:56:56,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:56:56,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:56:56,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:56:56,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:56:56,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:56:56,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:56:56,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:56:56,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:56:56,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:56:56,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:56:56,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:56:56,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:56:56,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:56:56,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:56:56,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:56:56,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:56:56,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:56:56,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:56:56,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:56:56,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:56:56,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:56:56,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:56:56,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:56:56,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:56:56,817 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:56:56,818 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-02 20:56:56,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:56:56,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:56:56,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:56:56,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:56:56,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:56:56,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:56:56,849 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:56:56,849 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-02 20:56:56,849 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-02 20:56:56,849 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-02 20:56:56,851 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-02 20:56:56,851 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-02 20:56:56,851 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-02 20:56:56,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:56:56,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:56:56,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:56:56,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:56:56,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:56:56,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:56:56,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-02 20:56:56,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-02 20:56:56,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-02 20:56:56,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:56:56,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:56:56,855 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-02 20:56:56,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:56:56,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-02 20:56:56,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:56:56,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:56:56,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:56:56,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:56:56,858 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-02 20:56:56,859 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_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8e8f57de68bd156f96d4553940231369dc2e0f8c550ee7a61d6446a6f476745 [2022-11-02 20:56:57,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:56:57,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:56:57,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:56:57,281 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:56:57,282 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:56:57,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-11-02 20:56:57,374 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/data/df7baa217/3153323e7d4149ceb888186e4c6b47fe/FLAGb636e493a [2022-11-02 20:56:57,955 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:56:57,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c [2022-11-02 20:56:57,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/data/df7baa217/3153323e7d4149ceb888186e4c6b47fe/FLAGb636e493a [2022-11-02 20:56:58,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/data/df7baa217/3153323e7d4149ceb888186e4c6b47fe [2022-11-02 20:56:58,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:56:58,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:56:58,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:58,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:56:58,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:56:58,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56264f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58, skipping insertion in model container [2022-11-02 20:56:58,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:56:58,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:56:58,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c[12672,12685] [2022-11-02 20:56:58,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:58,688 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:56:58,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/sv-benchmarks/c/product-lines/minepump_spec2_product62.cil.c[12672,12685] [2022-11-02 20:56:58,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:56:58,813 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:56:58,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58 WrapperNode [2022-11-02 20:56:58,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:56:58,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:58,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:56:58,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:56:58,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,934 INFO L138 Inliner]: procedures = 59, calls = 162, calls flagged for inlining = 59, calls inlined = 175, statements flattened = 1272 [2022-11-02 20:56:58,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:56:58,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:56:58,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:56:58,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:56:58,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:58,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:59,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:56:59,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:56:59,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:56:59,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:56:59,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (1/1) ... [2022-11-02 20:56:59,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-02 20:56:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:56:59,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-02 20:56:59,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-02 20:56:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:56:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:56:59,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:56:59,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:56:59,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:56:59,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:57:00,143 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:57:00,158 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:57:00,161 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:57:00,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:00 BoogieIcfgContainer [2022-11-02 20:57:00,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:57:00,169 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-02 20:57:00,169 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-02 20:57:00,173 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-02 20:57:00,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:57:00,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 08:56:58" (1/3) ... [2022-11-02 20:57:00,176 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46394712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:57:00, skipping insertion in model container [2022-11-02 20:57:00,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:57:00,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:56:58" (2/3) ... [2022-11-02 20:57:00,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46394712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 08:57:00, skipping insertion in model container [2022-11-02 20:57:00,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-02 20:57:00,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:00" (3/3) ... [2022-11-02 20:57:00,180 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product62.cil.c [2022-11-02 20:57:00,262 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-02 20:57:00,262 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-02 20:57:00,262 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-02 20:57:00,262 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-02 20:57:00,262 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-02 20:57:00,263 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-02 20:57:00,263 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-02 20:57:00,263 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-02 20:57:00,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3571428571428572) internal successors, (437), 322 states have internal predecessors, (437), 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) [2022-11-02 20:57:00,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2022-11-02 20:57:00,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:57:00,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:57:00,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:00,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:00,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-02 20:57:00,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 323 states, 322 states have (on average 1.3571428571428572) internal successors, (437), 322 states have internal predecessors, (437), 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) [2022-11-02 20:57:00,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 211 [2022-11-02 20:57:00,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:57:00,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:57:00,364 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:00,365 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:00,375 INFO L748 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 194#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 178#L702true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 138#L695true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 71#L710true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 26#L508true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 225#L479true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 51#L539true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 234#L726-2true [2022-11-02 20:57:00,375 INFO L750 eck$LassoCheckResult]: Loop: 234#L726-2true assume !false; 165#L727true assume test_~splverifierCounter~0#1 < 4; 67#L728true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 191#L736true assume !(0 != test_~tmp~5#1); 203#L736-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 92#L746true assume !(0 != test_~tmp___0~1#1); 246#L746-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 82#L756true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 315#L1029true assume { :end_inline_startSystem } true; 97#L764-2true assume { :begin_inline_timeShift } true; 163#L792true assume !(0 != ~pumpRunning~0); 24#L792-2true assume !(0 != ~systemActive~0); 282#L799-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 74#L620-5true __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 143#L550true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 49#L550-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 305#L809true assume { :end_inline_timeShift } true; 234#L726-2true [2022-11-02 20:57:00,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-02 20:57:00,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:00,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089675567] [2022-11-02 20:57:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:00,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:00,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:00,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:00,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash 588265801, now seen corresponding path program 1 times [2022-11-02 20:57:00,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:00,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802149785] [2022-11-02 20:57:00,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:00,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:00,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:00,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802149785] [2022-11-02 20:57:00,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802149785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:00,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:00,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353530561] [2022-11-02 20:57:00,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:00,714 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:57:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:00,753 INFO L87 Difference]: Start difference. First operand has 323 states, 322 states have (on average 1.3571428571428572) internal successors, (437), 322 states have internal predecessors, (437), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-02 20:57:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:00,841 INFO L93 Difference]: Finished difference Result 320 states and 424 transitions. [2022-11-02 20:57:00,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 320 states and 424 transitions. [2022-11-02 20:57:00,859 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2022-11-02 20:57:00,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 320 states to 310 states and 413 transitions. [2022-11-02 20:57:00,865 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 310 [2022-11-02 20:57:00,866 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 310 [2022-11-02 20:57:00,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 310 states and 413 transitions. [2022-11-02 20:57:00,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:57:00,878 INFO L218 hiAutomatonCegarLoop]: Abstraction has 310 states and 413 transitions. [2022-11-02 20:57:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states and 413 transitions. [2022-11-02 20:57:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-11-02 20:57:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 310 states have (on average 1.332258064516129) internal successors, (413), 309 states have internal predecessors, (413), 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) [2022-11-02 20:57:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 413 transitions. [2022-11-02 20:57:00,970 INFO L240 hiAutomatonCegarLoop]: Abstraction has 310 states and 413 transitions. [2022-11-02 20:57:00,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:00,978 INFO L428 stractBuchiCegarLoop]: Abstraction has 310 states and 413 transitions. [2022-11-02 20:57:00,978 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-02 20:57:00,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 310 states and 413 transitions. [2022-11-02 20:57:00,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 207 [2022-11-02 20:57:00,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:57:00,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:57:00,987 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:00,987 INFO L149 hiAutomatonCegarLoop]: 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] [2022-11-02 20:57:00,988 INFO L748 eck$LassoCheckResult]: Stem: 958#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 913#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 902#L702 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 864#L695 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 781#L710 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 704#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 705#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 753#L539 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 754#L726-2 [2022-11-02 20:57:00,988 INFO L750 eck$LassoCheckResult]: Loop: 754#L726-2 assume !false; 889#L727 assume test_~splverifierCounter~0#1 < 4; 774#L728 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 775#L736 assume !(0 != test_~tmp~5#1); 911#L736-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 818#L746 assume !(0 != test_~tmp___0~1#1); 766#L746-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 801#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 802#L1029 assume { :end_inline_startSystem } true; 824#L764-2 assume { :begin_inline_timeShift } true; 825#L792 assume !(0 != ~pumpRunning~0); 700#L792-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 701#L876 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret44#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 756#L620 isMethaneAlarm_#t~ret44#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret44#1;havoc isMethaneAlarm_#t~ret44#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1; 757#L937 processEnvironment_#t~ret42#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8#1 := processEnvironment_#t~ret42#1;havoc processEnvironment_#t~ret42#1; 909#L880 assume 0 != processEnvironment_~tmp~8#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 884#L927 assume { :end_inline_deactivatePump } true; 832#L876-1 assume { :end_inline_processEnvironment } true; 833#L799-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 787#L620-5 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 788#L550 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 747#L550-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 748#L809 assume { :end_inline_timeShift } true; 754#L726-2 [2022-11-02 20:57:00,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-02 20:57:00,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:00,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306829967] [2022-11-02 20:57:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:00,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,066 INFO L85 PathProgramCache]: Analyzing trace with hash 448837394, now seen corresponding path program 1 times [2022-11-02 20:57:01,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948821663] [2022-11-02 20:57:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:01,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:01,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948821663] [2022-11-02 20:57:01,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948821663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:01,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:01,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:57:01,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140838481] [2022-11-02 20:57:01,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:01,096 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:57:01,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:01,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:57:01,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:57:01,097 INFO L87 Difference]: Start difference. First operand 310 states and 413 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-02 20:57:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:01,204 INFO L93 Difference]: Finished difference Result 321 states and 407 transitions. [2022-11-02 20:57:01,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 407 transitions. [2022-11-02 20:57:01,207 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2022-11-02 20:57:01,212 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 321 states and 407 transitions. [2022-11-02 20:57:01,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2022-11-02 20:57:01,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 321 [2022-11-02 20:57:01,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 321 states and 407 transitions. [2022-11-02 20:57:01,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:57:01,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 321 states and 407 transitions. [2022-11-02 20:57:01,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states and 407 transitions. [2022-11-02 20:57:01,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2022-11-02 20:57:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 321 states have (on average 1.2679127725856698) internal successors, (407), 320 states have internal predecessors, (407), 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) [2022-11-02 20:57:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 407 transitions. [2022-11-02 20:57:01,229 INFO L240 hiAutomatonCegarLoop]: Abstraction has 321 states and 407 transitions. [2022-11-02 20:57:01,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:57:01,232 INFO L428 stractBuchiCegarLoop]: Abstraction has 321 states and 407 transitions. [2022-11-02 20:57:01,232 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-02 20:57:01,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 321 states and 407 transitions. [2022-11-02 20:57:01,235 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 220 [2022-11-02 20:57:01,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:57:01,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:57:01,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:01,237 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:01,237 INFO L748 eck$LassoCheckResult]: Stem: 1547#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 1495#L702 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1459#L695 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 1392#L710 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1330#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 1331#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1368#L539 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1369#L726-2 [2022-11-02 20:57:01,237 INFO L750 eck$LassoCheckResult]: Loop: 1369#L726-2 assume !false; 1485#L727 assume test_~splverifierCounter~0#1 < 4; 1383#L728 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 1384#L736 assume !(0 != test_~tmp~5#1); 1503#L736-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 1416#L746 assume !(0 != test_~tmp___0~1#1); 1378#L746-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 1403#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1404#L1029 assume { :end_inline_startSystem } true; 1421#L764-2 assume { :begin_inline_timeShift } true; 1422#L792 assume !(0 != ~pumpRunning~0); 1326#L792-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 1327#L876 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 1425#L850-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1538#L824-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 1410#L660-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 1411#L665-3 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 1489#L995-9 assume !(0 != isHighWaterLevel_~tmp~10#1);isHighWaterLevel_~tmp___0~2#1 := 1; 1359#L995-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 1360#L1001-3 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 1399#L828-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1291#L816-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1292#L824-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1580#L850-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1482#L876-1 assume { :end_inline_processEnvironment } true; 1543#L799-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 1393#L620-5 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 1394#L550 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 1363#L550-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1364#L809 assume { :end_inline_timeShift } true; 1369#L726-2 [2022-11-02 20:57:01,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,238 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-02 20:57:01,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316467689] [2022-11-02 20:57:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1565421667, now seen corresponding path program 1 times [2022-11-02 20:57:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768918299] [2022-11-02 20:57:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:57:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:57:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:57:01,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768918299] [2022-11-02 20:57:01,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768918299] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:57:01,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:57:01,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:57:01,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220656237] [2022-11-02 20:57:01,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:57:01,379 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-02 20:57:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:57:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:57:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:57:01,380 INFO L87 Difference]: Start difference. First operand 321 states and 407 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-02 20:57:01,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:57:01,534 INFO L93 Difference]: Finished difference Result 625 states and 779 transitions. [2022-11-02 20:57:01,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 625 states and 779 transitions. [2022-11-02 20:57:01,541 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 434 [2022-11-02 20:57:01,544 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 625 states to 625 states and 779 transitions. [2022-11-02 20:57:01,545 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 625 [2022-11-02 20:57:01,545 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 625 [2022-11-02 20:57:01,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 625 states and 779 transitions. [2022-11-02 20:57:01,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:57:01,547 INFO L218 hiAutomatonCegarLoop]: Abstraction has 625 states and 779 transitions. [2022-11-02 20:57:01,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states and 779 transitions. [2022-11-02 20:57:01,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 339. [2022-11-02 20:57:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 339 states have (on average 1.2536873156342183) internal successors, (425), 338 states have internal predecessors, (425), 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) [2022-11-02 20:57:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 425 transitions. [2022-11-02 20:57:01,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 339 states and 425 transitions. [2022-11-02 20:57:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:57:01,564 INFO L428 stractBuchiCegarLoop]: Abstraction has 339 states and 425 transitions. [2022-11-02 20:57:01,565 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-02 20:57:01,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 339 states and 425 transitions. [2022-11-02 20:57:01,575 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 232 [2022-11-02 20:57:01,575 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-02 20:57:01,576 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-02 20:57:01,577 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:01,577 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-11-02 20:57:01,577 INFO L748 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2467#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 2456#L702 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2420#L695 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~9#1;havoc valid_product_~retValue_acc~9#1;valid_product_~retValue_acc~9#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~9#1; 2349#L710 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 2286#L508 assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 2287#L479 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 2321#L539 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2322#L726-2 [2022-11-02 20:57:01,578 INFO L750 eck$LassoCheckResult]: Loop: 2322#L726-2 assume !false; 2445#L727 assume test_~splverifierCounter~0#1 < 4; 2446#L728 test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 2560#L736 assume !(0 != test_~tmp~5#1); 2472#L736-2 test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2473#L746 assume !(0 != test_~tmp___0~1#1); 2497#L746-2 test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2360#L756 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2361#L1029 assume { :end_inline_startSystem } true; 2381#L764-2 assume { :begin_inline_timeShift } true; 2382#L792 assume !(0 != ~pumpRunning~0); 2284#L792-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~8#1;havoc processEnvironment_~tmp~8#1; 2285#L876 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret41#1, processEnvironment__wrappee__methaneQuery_~tmp~7#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~7#1; 2388#L850-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2509#L824-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~10#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~10#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 2368#L660-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 2369#L665-3 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~10#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2506#L995-9 assume 0 != isHighWaterLevel_~tmp~10#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2311#L995-11 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2312#L1001-3 processEnvironment__wrappee__highWaterSensor_#t~ret40#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret40#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret40#1; 2356#L828-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2247#L816-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2248#L824-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2397#L850-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2389#L876-1 assume { :end_inline_processEnvironment } true; 2390#L799-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret28#1, __utac_acc__Specification2_spec__2_#t~ret29#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 2350#L620-5 __utac_acc__Specification2_spec__2_#t~ret28#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret28#1;havoc __utac_acc__Specification2_spec__2_#t~ret28#1; 2351#L550 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 2319#L550-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 2320#L809 assume { :end_inline_timeShift } true; 2322#L726-2 [2022-11-02 20:57:01,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,579 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-02 20:57:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193562298] [2022-11-02 20:57:01,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:01,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2142739615, now seen corresponding path program 1 times [2022-11-02 20:57:01,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840863078] [2022-11-02 20:57:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:57:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash 186370186, now seen corresponding path program 1 times [2022-11-02 20:57:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:57:01,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901710638] [2022-11-02 20:57:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:57:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:57:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,648 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:01,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:57:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:05,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:57:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:57:06,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 08:57:06 BoogieIcfgContainer [2022-11-02 20:57:06,045 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-02 20:57:06,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:57:06,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:57:06,046 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:57:06,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:57:00" (3/4) ... [2022-11-02 20:57:06,049 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-02 20:57:06,103 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:57:06,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:57:06,105 INFO L158 Benchmark]: Toolchain (without parser) took 7850.03ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 83.3MB in the beginning and 84.1MB in the end (delta: -812.2kB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,105 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:57:06,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.02ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 87.0MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,106 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.92ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 81.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,106 INFO L158 Benchmark]: Boogie Preprocessor took 76.13ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 77.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,107 INFO L158 Benchmark]: RCFGBuilder took 1154.32ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 83.3MB in the end (delta: -5.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,107 INFO L158 Benchmark]: BuchiAutomizer took 5876.15ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 83.3MB in the beginning and 87.3MB in the end (delta: -4.0MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,108 INFO L158 Benchmark]: Witness Printer took 58.53ms. Allocated memory is still 178.3MB. Free memory was 87.3MB in the beginning and 84.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:57:06,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 51.9MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.02ms. Allocated memory is still 119.5MB. Free memory was 83.1MB in the beginning and 87.0MB in the end (delta: -3.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.92ms. Allocated memory is still 119.5MB. Free memory was 86.5MB in the beginning and 81.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.13ms. Allocated memory is still 119.5MB. Free memory was 81.3MB in the beginning and 77.7MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1154.32ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 83.3MB in the end (delta: -5.6MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 5876.15ms. Allocated memory was 119.5MB in the beginning and 178.3MB in the end (delta: 58.7MB). Free memory was 83.3MB in the beginning and 87.3MB in the end (delta: -4.0MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Witness Printer took 58.53ms. Allocated memory is still 178.3MB. Free memory was 87.3MB in the beginning and 84.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 4 locations. The remainder module has 339 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 286 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1180 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1180 mSDsluCounter, 1737 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 688 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 1049 mSDtfsCounter, 130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 726]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int methAndRunningLastTime ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L706] int retValue_acc ; [L709] retValue_acc = 1 [L710] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification2_spec__1() [L538] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification2_spec__1() [L490] CALL test() [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___2) [L758] CALL startSystem() [L1028] systemActive = 1 [L758] RET startSystem() [L771] CALL timeShift() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L801] CALL processEnvironment() [L873] int tmp ; [L876] COND FALSE !(\read(pumpRunning)) [L891] CALL processEnvironment__wrappee__methaneQuery() [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L865] CALL processEnvironment__wrappee__highWaterSensor() [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L826] CALL, EXPR isHighWaterLevel() [L987] int retValue_acc ; [L988] int tmp ; [L989] int tmp___0 ; [L993] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L993] RET, EXPR isHighWaterSensorDry() [L993] tmp = isHighWaterSensorDry() [L995] COND TRUE \read(tmp) [L996] tmp___0 = 0 [L1000] retValue_acc = tmp___0 [L1001] return (retValue_acc); [L826] RET, EXPR isHighWaterLevel() [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L834] FCALL processEnvironment__wrappee__base() [L865] RET processEnvironment__wrappee__highWaterSensor() [L891] RET processEnvironment__wrappee__methaneQuery() [L801] RET processEnvironment() [L807] CALL __utac_acc__Specification2_spec__2() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR isMethaneLevelCritical() [L616] int retValue_acc ; [L619] retValue_acc = methaneLevelCritical [L620] return (retValue_acc); [L548] RET, EXPR isMethaneLevelCritical() [L548] tmp = isMethaneLevelCritical() [L550] COND FALSE !(\read(tmp)) [L566] methAndRunningLastTime = 0 [L807] RET __utac_acc__Specification2_spec__2() [L771] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 726]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L533] int methAndRunningLastTime ; [L577] int waterLevel = 1; [L578] int methaneLevelCritical = 0; [L785] int pumpRunning = 0; [L786] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L706] int retValue_acc ; [L709] retValue_acc = 1 [L710] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification2_spec__1() [L538] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification2_spec__1() [L490] CALL test() [L717] int splverifierCounter ; [L718] int tmp ; [L719] int tmp___0 ; [L720] int tmp___1 ; [L721] int tmp___2 ; [L724] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L726] COND TRUE 1 [L728] COND TRUE splverifierCounter < 4 [L734] tmp = __VERIFIER_nondet_int() [L736] COND FALSE !(\read(tmp)) [L744] tmp___0 = __VERIFIER_nondet_int() [L746] COND FALSE !(\read(tmp___0)) [L754] tmp___2 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___2) [L758] CALL startSystem() [L1028] systemActive = 1 [L758] RET startSystem() [L771] CALL timeShift() [L792] COND FALSE !(\read(pumpRunning)) [L799] COND TRUE \read(systemActive) [L801] CALL processEnvironment() [L873] int tmp ; [L876] COND FALSE !(\read(pumpRunning)) [L891] CALL processEnvironment__wrappee__methaneQuery() [L847] int tmp ; [L850] COND FALSE !(\read(pumpRunning)) [L865] CALL processEnvironment__wrappee__highWaterSensor() [L821] int tmp ; [L824] COND TRUE ! pumpRunning [L826] CALL, EXPR isHighWaterLevel() [L987] int retValue_acc ; [L988] int tmp ; [L989] int tmp___0 ; [L993] CALL, EXPR isHighWaterSensorDry() [L657] int retValue_acc ; [L660] COND TRUE waterLevel < 2 [L661] retValue_acc = 1 [L662] return (retValue_acc); [L993] RET, EXPR isHighWaterSensorDry() [L993] tmp = isHighWaterSensorDry() [L995] COND TRUE \read(tmp) [L996] tmp___0 = 0 [L1000] retValue_acc = tmp___0 [L1001] return (retValue_acc); [L826] RET, EXPR isHighWaterLevel() [L826] tmp = isHighWaterLevel() [L828] COND FALSE !(\read(tmp)) [L834] FCALL processEnvironment__wrappee__base() [L865] RET processEnvironment__wrappee__highWaterSensor() [L891] RET processEnvironment__wrappee__methaneQuery() [L801] RET processEnvironment() [L807] CALL __utac_acc__Specification2_spec__2() [L543] int tmp ; [L544] int tmp___0 ; [L548] CALL, EXPR isMethaneLevelCritical() [L616] int retValue_acc ; [L619] retValue_acc = methaneLevelCritical [L620] return (retValue_acc); [L548] RET, EXPR isMethaneLevelCritical() [L548] tmp = isMethaneLevelCritical() [L550] COND FALSE !(\read(tmp)) [L566] methAndRunningLastTime = 0 [L807] RET __utac_acc__Specification2_spec__2() [L771] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-02 20:57:06,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08e3d35a-090d-4aef-b293-21f8d16401be/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)