./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8 --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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- 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-2329fc7 [2022-12-13 12:19:37,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:19:37,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:19:37,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:19:37,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:19:37,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:19:37,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:19:37,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:19:37,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:19:37,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:19:37,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:19:37,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:19:37,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:19:37,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:19:37,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:19:37,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:19:37,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:19:37,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:19:37,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:19:37,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:19:37,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:19:37,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:19:37,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:19:37,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:19:37,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:19:37,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:19:37,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:19:37,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:19:37,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:19:37,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:19:37,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:19:37,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:19:37,746 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:19:37,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:19:37,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:19:37,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:19:37,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:19:37,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:19:37,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:19:37,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:19:37,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:19:37,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 12:19:37,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:19:37,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:19:37,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:19:37,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:19:37,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:19:37,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:19:37,766 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:19:37,766 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 12:19:37,766 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 12:19:37,766 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 12:19:37,766 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 12:19:37,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:19:37,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 12:19:37,768 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:19:37,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 12:19:37,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:19:37,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:19:37,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:19:37,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:19:37,770 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 12:19:37,770 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_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2022-12-13 12:19:37,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:19:37,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:19:37,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:19:37,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:19:37,973 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:19:37,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-12-13 12:19:40,535 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:19:40,697 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:19:40,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-12-13 12:19:40,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/data/e5a1a7787/a93d60a0c15940249740ba9e932c7598/FLAG79a929eb8 [2022-12-13 12:19:40,715 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/data/e5a1a7787/a93d60a0c15940249740ba9e932c7598 [2022-12-13 12:19:40,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:19:40,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:19:40,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:19:40,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:19:40,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:19:40,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:40,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449085a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40, skipping insertion in model container [2022-12-13 12:19:40,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:40,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:19:40,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:19:40,859 WARN L237 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_f3ee012e-16a4-4f00-b728-50ae604533a0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2022-12-13 12:19:40,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:19:40,935 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:19:40,945 WARN L237 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_f3ee012e-16a4-4f00-b728-50ae604533a0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2022-12-13 12:19:40,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:19:40,993 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:19:40,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40 WrapperNode [2022-12-13 12:19:40,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:19:40,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:19:40,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:19:40,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:19:41,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,028 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 56, statements flattened = 380 [2022-12-13 12:19:41,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:19:41,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:19:41,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:19:41,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:19:41,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,045 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:19:41,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:19:41,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:19:41,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:19:41,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (1/1) ... [2022-12-13 12:19:41,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 12:19:41,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:19:41,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 12:19:41,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 12:19:41,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:19:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:19:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:19:41,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:19:41,174 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:19:41,176 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:19:41,415 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:19:41,422 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:19:41,422 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:19:41,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:19:41 BoogieIcfgContainer [2022-12-13 12:19:41,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:19:41,425 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 12:19:41,426 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 12:19:41,429 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 12:19:41,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:19:41,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 12:19:40" (1/3) ... [2022-12-13 12:19:41,431 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56903b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:19:41, skipping insertion in model container [2022-12-13 12:19:41,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:19:41,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:19:40" (2/3) ... [2022-12-13 12:19:41,432 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56903b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 12:19:41, skipping insertion in model container [2022-12-13 12:19:41,432 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 12:19:41,432 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:19:41" (3/3) ... [2022-12-13 12:19:41,434 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2022-12-13 12:19:41,485 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 12:19:41,486 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 12:19:41,486 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 12:19:41,486 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 12:19:41,486 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 12:19:41,486 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 12:19:41,486 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 12:19:41,486 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 12:19:41,491 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2022-12-13 12:19:41,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-12-13 12:19:41,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:19:41,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:19:41,515 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:41,515 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:41,516 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 12:19:41,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 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) [2022-12-13 12:19:41,527 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 76 [2022-12-13 12:19:41,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:19:41,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:19:41,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:41,529 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:41,534 INFO L748 eck$LassoCheckResult]: Stem: 26#$Ultimate##0true 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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 39#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 23#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 97#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 89#valid_product_returnLabel#1true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 82#L151true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 71#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 104#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 28#L577-2true [2022-12-13 12:19:41,535 INFO L750 eck$LassoCheckResult]: Loop: 28#L577-2true assume !false; 41#L578true assume test_~splverifierCounter~0#1 < 4; 16#L579true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 115#L587true assume !(0 != test_~tmp~4#1); 57#L587-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 100#L597true assume !(0 != test_~tmp___0~0#1); 54#L597-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 27#L607true assume 0 != test_~tmp___2~0#1; 84#L613-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 101#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 79#__utac_acc__Specification5_spec__2_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 33#L748true assume !(0 != ~pumpRunning~0); 5#L748-2true assume !(0 != ~systemActive~0); 65#L755-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 60#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 74#L935true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 80#L935-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 61#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 28#L577-2true [2022-12-13 12:19:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 12:19:41,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:41,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519154584] [2022-12-13 12:19:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:41,651 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:41,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:41,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1007690196, now seen corresponding path program 1 times [2022-12-13 12:19:41,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:41,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081843515] [2022-12-13 12:19:41,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:41,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:41,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:41,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:41,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1947924693, now seen corresponding path program 1 times [2022-12-13 12:19:41,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:41,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56742203] [2022-12-13 12:19:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:41,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:19:41,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:41,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:19:41,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56742203] [2022-12-13 12:19:41,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56742203] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:19:41,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:19:41,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:19:41,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577881052] [2022-12-13 12:19:41,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:19:42,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:19:42,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:19:42,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:19:42,030 INFO L87 Difference]: Start difference. First operand has 119 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 118 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-12-13 12:19:42,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:19:42,123 INFO L93 Difference]: Finished difference Result 297 states and 384 transitions. [2022-12-13 12:19:42,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 384 transitions. [2022-12-13 12:19:42,130 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 189 [2022-12-13 12:19:42,133 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 267 states and 354 transitions. [2022-12-13 12:19:42,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 267 [2022-12-13 12:19:42,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 267 [2022-12-13 12:19:42,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 267 states and 354 transitions. [2022-12-13 12:19:42,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:19:42,136 INFO L218 hiAutomatonCegarLoop]: Abstraction has 267 states and 354 transitions. [2022-12-13 12:19:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states and 354 transitions. [2022-12-13 12:19:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 167. [2022-12-13 12:19:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 166 states have internal predecessors, (221), 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) [2022-12-13 12:19:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2022-12-13 12:19:42,161 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 221 transitions. [2022-12-13 12:19:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:19:42,165 INFO L428 stractBuchiCegarLoop]: Abstraction has 167 states and 221 transitions. [2022-12-13 12:19:42,165 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 12:19:42,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 221 transitions. [2022-12-13 12:19:42,166 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2022-12-13 12:19:42,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:19:42,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:19:42,167 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:42,167 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] [2022-12-13 12:19:42,167 INFO L748 eck$LassoCheckResult]: Stem: 470#$Ultimate##0 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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 471#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 466#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 467#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 533#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 528#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 521#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 522#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 475#L577-2 [2022-12-13 12:19:42,167 INFO L750 eck$LassoCheckResult]: Loop: 475#L577-2 assume !false; 476#L578 assume test_~splverifierCounter~0#1 < 4; 455#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 456#L587 assume !(0 != test_~tmp~4#1); 488#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 508#L597 assume !(0 != test_~tmp___0~0#1); 499#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 472#L607 assume 0 != test_~tmp___2~0#1; 473#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 529#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 527#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 483#L748 assume !(0 != ~pumpRunning~0); 436#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 437#L780 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 438#processEnvironment__wrappee__base_returnLabel#2 assume { :end_inline_processEnvironment__wrappee__base } true; 441#L780-1 assume { :end_inline_processEnvironment } true; 442#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 511#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 512#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 525#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 513#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 475#L577-2 [2022-12-13 12:19:42,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,168 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 12:19:42,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313020390] [2022-12-13 12:19:42,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,180 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:42,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1368195016, now seen corresponding path program 1 times [2022-12-13 12:19:42,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508780779] [2022-12-13 12:19:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:19:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:42,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:19:42,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508780779] [2022-12-13 12:19:42,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508780779] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:19:42,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:19:42,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:19:42,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998466310] [2022-12-13 12:19:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:19:42,197 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:19:42,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:19:42,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:19:42,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:19:42,199 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-12-13 12:19:42,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:19:42,242 INFO L93 Difference]: Finished difference Result 223 states and 284 transitions. [2022-12-13 12:19:42,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 284 transitions. [2022-12-13 12:19:42,245 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-12-13 12:19:42,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 223 states and 284 transitions. [2022-12-13 12:19:42,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 223 [2022-12-13 12:19:42,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 223 [2022-12-13 12:19:42,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 223 states and 284 transitions. [2022-12-13 12:19:42,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:19:42,248 INFO L218 hiAutomatonCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-12-13 12:19:42,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states and 284 transitions. [2022-12-13 12:19:42,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-12-13 12:19:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 223 states have (on average 1.2735426008968609) internal successors, (284), 222 states have internal predecessors, (284), 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) [2022-12-13 12:19:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 284 transitions. [2022-12-13 12:19:42,255 INFO L240 hiAutomatonCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-12-13 12:19:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:19:42,256 INFO L428 stractBuchiCegarLoop]: Abstraction has 223 states and 284 transitions. [2022-12-13 12:19:42,256 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 12:19:42,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 284 transitions. [2022-12-13 12:19:42,257 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 161 [2022-12-13 12:19:42,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:19:42,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:19:42,257 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:42,257 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] [2022-12-13 12:19:42,257 INFO L748 eck$LassoCheckResult]: Stem: 866#$Ultimate##0 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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 867#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 862#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 863#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 936#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 930#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 922#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 923#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 944#L577-2 [2022-12-13 12:19:42,258 INFO L750 eck$LassoCheckResult]: Loop: 944#L577-2 assume !false; 1035#L578 assume test_~splverifierCounter~0#1 < 4; 1034#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1031#L587 assume !(0 != test_~tmp~4#1); 1025#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1023#L597 assume !(0 != test_~tmp___0~0#1); 1019#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1015#L607 assume 0 != test_~tmp___2~0#1; 1013#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 1012#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 929#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 879#L748 assume !(0 != ~pumpRunning~0); 832#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 833#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 834#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 852#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 853#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 886#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 938#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 939#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 849#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 837#L780-1 assume { :end_inline_processEnvironment } true; 838#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 1042#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 1040#L935 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7#1); 1037#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1036#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 944#L577-2 [2022-12-13 12:19:42,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,258 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 12:19:42,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936543301] [2022-12-13 12:19:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:42,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,270 INFO L85 PathProgramCache]: Analyzing trace with hash -926749152, now seen corresponding path program 1 times [2022-12-13 12:19:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433027310] [2022-12-13 12:19:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:19:42,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:19:42,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:19:42,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433027310] [2022-12-13 12:19:42,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433027310] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:19:42,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:19:42,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 12:19:42,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039491775] [2022-12-13 12:19:42,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:19:42,339 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 12:19:42,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:19:42,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:19:42,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:19:42,340 INFO L87 Difference]: Start difference. First operand 223 states and 284 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2022-12-13 12:19:42,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:19:42,481 INFO L93 Difference]: Finished difference Result 832 states and 1048 transitions. [2022-12-13 12:19:42,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 832 states and 1048 transitions. [2022-12-13 12:19:42,488 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 595 [2022-12-13 12:19:42,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 832 states to 832 states and 1048 transitions. [2022-12-13 12:19:42,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 832 [2022-12-13 12:19:42,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 832 [2022-12-13 12:19:42,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 832 states and 1048 transitions. [2022-12-13 12:19:42,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:19:42,497 INFO L218 hiAutomatonCegarLoop]: Abstraction has 832 states and 1048 transitions. [2022-12-13 12:19:42,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states and 1048 transitions. [2022-12-13 12:19:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 435. [2022-12-13 12:19:42,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 435 states have (on average 1.2528735632183907) internal successors, (545), 434 states have internal predecessors, (545), 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) [2022-12-13 12:19:42,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 545 transitions. [2022-12-13 12:19:42,517 INFO L240 hiAutomatonCegarLoop]: Abstraction has 435 states and 545 transitions. [2022-12-13 12:19:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:19:42,518 INFO L428 stractBuchiCegarLoop]: Abstraction has 435 states and 545 transitions. [2022-12-13 12:19:42,518 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 12:19:42,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 435 states and 545 transitions. [2022-12-13 12:19:42,521 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 320 [2022-12-13 12:19:42,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 12:19:42,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 12:19:42,522 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:19:42,522 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] [2022-12-13 12:19:42,523 INFO L748 eck$LassoCheckResult]: Stem: 1943#$Ultimate##0 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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 1944#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1939#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1940#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1; 2033#valid_product_returnLabel#1 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2026#L151 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2010#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2011#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2042#L577-2 [2022-12-13 12:19:42,523 INFO L750 eck$LassoCheckResult]: Loop: 2042#L577-2 assume !false; 2226#L578 assume test_~splverifierCounter~0#1 < 4; 2227#L579 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2308#L587 assume !(0 != test_~tmp~4#1); 2306#L587-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 2303#L597 assume !(0 != test_~tmp___0~0#1); 2300#L597-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 2286#L607 assume 0 != test_~tmp___2~0#1; 2284#L613-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret49#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 2282#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret49#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret49#1;havoc __utac_acc__Specification5_spec__2_#t~ret49#1; 2280#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2279#L748 assume !(0 != ~pumpRunning~0); 1906#L748-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret38#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1907#L780 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1992#L722 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1929#isHighWaterSensorDry_returnLabel#1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1930#L882 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1965#L882-2 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2037#isHighWaterLevel_returnLabel#1 processEnvironment_#t~ret38#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret38#1;havoc processEnvironment_#t~ret38#1; 2038#L784 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2041#processEnvironment__wrappee__base_returnLabel#1 assume { :end_inline_processEnvironment__wrappee__base } true; 2312#L780-1 assume { :end_inline_processEnvironment } true; 2004#L755-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_~tmp~7#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~7#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2005#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~7#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1; 2236#L935 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~10#1;havoc isPumpRunning_~retValue_acc~10#1;isPumpRunning_~retValue_acc~10#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~10#1; 2237#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret51#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2233#L939 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1); 2232#L935-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2228#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2042#L577-2 [2022-12-13 12:19:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-12-13 12:19:42,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130768189] [2022-12-13 12:19:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,528 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1566802949, now seen corresponding path program 1 times [2022-12-13 12:19:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926872317] [2022-12-13 12:19:42,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:42,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:19:42,545 INFO L85 PathProgramCache]: Analyzing trace with hash -660386382, now seen corresponding path program 1 times [2022-12-13 12:19:42,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:19:42,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176498933] [2022-12-13 12:19:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:19:42,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:19:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:42,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:19:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:43,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:19:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:19:43,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 12:19:43 BoogieIcfgContainer [2022-12-13 12:19:43,428 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 12:19:43,428 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:19:43,428 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:19:43,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:19:43,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:19:41" (3/4) ... [2022-12-13 12:19:43,431 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 12:19:43,473 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:19:43,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:19:43,474 INFO L158 Benchmark]: Toolchain (without parser) took 2755.48ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 103.8MB in the beginning and 74.5MB in the end (delta: 29.3MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,474 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:19:43,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.14ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 85.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.33ms. Allocated memory is still 136.3MB. Free memory was 85.4MB in the beginning and 82.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,475 INFO L158 Benchmark]: Boogie Preprocessor took 19.81ms. Allocated memory is still 136.3MB. Free memory was 82.4MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,475 INFO L158 Benchmark]: RCFGBuilder took 375.78ms. Allocated memory is still 136.3MB. Free memory was 80.8MB in the beginning and 62.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,476 INFO L158 Benchmark]: BuchiAutomizer took 2002.44ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 62.4MB in the beginning and 77.7MB in the end (delta: -15.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,476 INFO L158 Benchmark]: Witness Printer took 44.95ms. Allocated memory is still 163.6MB. Free memory was 77.7MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:19:43,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.14ms. Allocated memory is still 136.3MB. Free memory was 103.4MB in the beginning and 85.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.33ms. Allocated memory is still 136.3MB. Free memory was 85.4MB in the beginning and 82.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.81ms. Allocated memory is still 136.3MB. Free memory was 82.4MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.78ms. Allocated memory is still 136.3MB. Free memory was 80.8MB in the beginning and 62.4MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2002.44ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 62.4MB in the beginning and 77.7MB in the end (delta: -15.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 44.95ms. Allocated memory is still 163.6MB. Free memory was 77.7MB in the beginning and 74.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 6 locations. The remainder module has 435 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 497 StatesRemovedByMinimization, 2 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, 1414 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1414 mSDsluCounter, 1873 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1379 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 164 IncrementalHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 494 mSDtfsCounter, 164 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 577]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L59] int cleanupTimeShifts = 4; [L334] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int waterLevel = 1; [L640] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L908] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L913] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L746] CALL __utac_acc__Specification5_spec__2() [L922] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] switchedOnBeforeTS = isPumpRunning() [L746] RET __utac_acc__Specification5_spec__2() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L757] CALL processEnvironment() [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L782] CALL, EXPR isHighWaterLevel() [L874] int retValue_acc ; [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR isHighWaterSensorDry() [L719] int retValue_acc ; [L722] COND TRUE waterLevel < 2 [L723] retValue_acc = 1 [L724] return (retValue_acc); [L880] RET, EXPR isHighWaterSensorDry() [L880] tmp = isHighWaterSensorDry() [L882] COND TRUE \read(tmp) [L883] tmp___0 = 0 [L887] retValue_acc = tmp___0 [L888] return (retValue_acc); [L782] RET, EXPR isHighWaterLevel() [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L790] FCALL processEnvironment__wrappee__base() [L757] RET processEnvironment() [L763] CALL __utac_acc__Specification5_spec__3() [L928] int tmp ; [L929] int tmp___0 ; [L933] CALL, EXPR getWaterLevel() [L710] int retValue_acc ; [L713] retValue_acc = waterLevel [L714] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp = getWaterLevel() [L935] COND TRUE tmp != 2 [L937] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___0 = isPumpRunning() [L939] COND FALSE !(\read(tmp___0)) [L763] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 577]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L334] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int waterLevel = 1; [L640] int methaneLevelCritical = 0; [L736] int pumpRunning = 0; [L737] int systemActive = 1; [L908] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L142] int retValue_acc ; [L143] int tmp ; [L147] FCALL select_helpers() [L148] FCALL select_features() [L149] CALL, EXPR valid_product() [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L149] RET, EXPR valid_product() [L149] tmp = valid_product() [L151] COND TRUE \read(tmp) [L153] FCALL setup() [L154] CALL runTest() [L132] CALL __utac_acc__Specification5_spec__1() [L913] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L132] RET __utac_acc__Specification5_spec__1() [L133] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L577] COND TRUE 1 [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L746] CALL __utac_acc__Specification5_spec__2() [L922] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L922] RET, EXPR isPumpRunning() [L922] switchedOnBeforeTS = isPumpRunning() [L746] RET __utac_acc__Specification5_spec__2() [L748] COND FALSE !(\read(pumpRunning)) [L755] COND TRUE \read(systemActive) [L757] CALL processEnvironment() [L777] int tmp ; [L780] COND TRUE ! pumpRunning [L782] CALL, EXPR isHighWaterLevel() [L874] int retValue_acc ; [L875] int tmp ; [L876] int tmp___0 ; [L880] CALL, EXPR isHighWaterSensorDry() [L719] int retValue_acc ; [L722] COND TRUE waterLevel < 2 [L723] retValue_acc = 1 [L724] return (retValue_acc); [L880] RET, EXPR isHighWaterSensorDry() [L880] tmp = isHighWaterSensorDry() [L882] COND TRUE \read(tmp) [L883] tmp___0 = 0 [L887] retValue_acc = tmp___0 [L888] return (retValue_acc); [L782] RET, EXPR isHighWaterLevel() [L782] tmp = isHighWaterLevel() [L784] COND FALSE !(\read(tmp)) [L790] FCALL processEnvironment__wrappee__base() [L757] RET processEnvironment() [L763] CALL __utac_acc__Specification5_spec__3() [L928] int tmp ; [L929] int tmp___0 ; [L933] CALL, EXPR getWaterLevel() [L710] int retValue_acc ; [L713] retValue_acc = waterLevel [L714] return (retValue_acc); [L933] RET, EXPR getWaterLevel() [L933] tmp = getWaterLevel() [L935] COND TRUE tmp != 2 [L937] CALL, EXPR isPumpRunning() [L829] int retValue_acc ; [L832] retValue_acc = pumpRunning [L833] return (retValue_acc); [L937] RET, EXPR isPumpRunning() [L937] tmp___0 = isPumpRunning() [L939] COND FALSE !(\read(tmp___0)) [L763] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:19:43,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ee012e-16a4-4f00-b728-50ae604533a0/bin/uautomizer-uyxdKDjOR8/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)