./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b 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_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN --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 a24146f0f51336ad73890bbd928f5403b02b7d1c9a9c70cce136ffcb124619cc --- 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-6b4ec56 [2022-11-20 10:44:26,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:44:26,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:44:26,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:44:26,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:44:26,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:44:26,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:44:26,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:44:26,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:44:26,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:44:26,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:44:26,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:44:26,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:44:26,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:44:26,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:44:26,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:44:26,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:44:26,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:44:26,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:44:26,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:44:26,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:44:26,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:44:26,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:44:26,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:44:26,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:44:26,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:44:26,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:44:26,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:44:26,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:44:26,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:44:26,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:44:26,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:44:26,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:44:26,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:44:26,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:44:26,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:44:26,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:44:26,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:44:26,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:44:26,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:44:26,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:44:26,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 10:44:26,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:44:26,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:44:26,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:44:26,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:44:26,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:44:26,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:44:26,269 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:44:26,270 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:44:26,270 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:44:26,270 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:44:26,270 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:44:26,270 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:44:26,271 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:44:26,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:44:26,271 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:44:26,271 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:44:26,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:44:26,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:44:26,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:44:26,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:44:26,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:44:26,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:44:26,273 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:44:26,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:44:26,273 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:44:26,274 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:44:26,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:44:26,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:44:26,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:44:26,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:44:26,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:44:26,276 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:44:26,276 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_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a24146f0f51336ad73890bbd928f5403b02b7d1c9a9c70cce136ffcb124619cc [2022-11-20 10:44:26,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:44:26,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:44:26,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:44:26,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:44:26,685 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:44:26,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2022-11-20 10:44:29,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:44:30,045 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:44:30,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2022-11-20 10:44:30,062 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/data/421e98f71/eeeba6e95faa4f108ea009527775cbff/FLAG3185c8e86 [2022-11-20 10:44:30,077 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/data/421e98f71/eeeba6e95faa4f108ea009527775cbff [2022-11-20 10:44:30,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:44:30,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:44:30,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:30,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:44:30,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:44:30,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f361931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30, skipping insertion in model container [2022-11-20 10:44:30,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:44:30,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:44:30,441 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_fa0f9537-720c-4494-894b-699ea5f850eb/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16679,16692] [2022-11-20 10:44:30,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:30,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:44:30,596 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_fa0f9537-720c-4494-894b-699ea5f850eb/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16679,16692] [2022-11-20 10:44:30,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:44:30,630 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:44:30,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30 WrapperNode [2022-11-20 10:44:30,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:44:30,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:30,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:44:30,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:44:30,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,708 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 58, calls inlined = 140, statements flattened = 955 [2022-11-20 10:44:30,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:44:30,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:44:30,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:44:30,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:44:30,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:44:30,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:44:30,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:44:30,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:44:30,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (1/1) ... [2022-11-20 10:44:30,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:44:30,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:44:30,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:44:30,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:44:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:44:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:44:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:44:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:44:31,056 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:44:31,058 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:44:31,874 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:44:31,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:44:31,884 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:44:31,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:31 BoogieIcfgContainer [2022-11-20 10:44:31,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:44:31,887 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:44:31,888 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:44:31,891 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:44:31,892 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:44:31,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:44:30" (1/3) ... [2022-11-20 10:44:31,893 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cb7c7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:44:31, skipping insertion in model container [2022-11-20 10:44:31,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:44:31,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:30" (2/3) ... [2022-11-20 10:44:31,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2cb7c7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:44:31, skipping insertion in model container [2022-11-20 10:44:31,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:44:31,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:31" (3/3) ... [2022-11-20 10:44:31,896 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2022-11-20 10:44:31,956 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:44:31,957 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:44:31,957 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:44:31,957 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:44:31,957 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:44:31,957 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:44:31,957 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:44:31,958 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:44:31,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:31,998 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2022-11-20 10:44:32,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:44:32,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:44:32,008 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,009 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,009 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:44:32,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:32,022 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 181 [2022-11-20 10:44:32,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:44:32,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:44:32,023 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,029 INFO L748 eck$LassoCheckResult]: Stem: 264#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 177#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 7#L772true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 231#L765true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 137#L780true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 244#L903true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 171#L880true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 168#L432-2true [2022-11-20 10:44:32,029 INFO L750 eck$LassoCheckResult]: Loop: 168#L432-2true assume !false; 70#L433true assume test_~splverifierCounter~0#1 < 4; 25#L434true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 162#L442true assume !(0 != test_~tmp~3#1); 242#L442-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 220#L452true assume !(0 != test_~tmp___0~0#1); 197#L452-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 84#L462true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 201#L743true assume { :end_inline_startSystem } true; 41#L470-2true assume { :begin_inline_timeShift } true; 37#L508true assume !(0 != ~pumpRunning~0); 228#L508-2true assume !(0 != ~systemActive~0); 27#L515-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_~tmp~9#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~9#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 227#L961-1true __utac_acc__Specification1_spec__1_#t~ret46#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9#1 := __utac_acc__Specification1_spec__1_#t~ret46#1;havoc __utac_acc__Specification1_spec__1_#t~ret46#1; 240#L794true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9#1); 52#L794-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2#L525true assume { :end_inline_timeShift } true; 168#L432-2true [2022-11-20 10:44:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-20 10:44:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:32,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245106530] [2022-11-20 10:44:32,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:32,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:32,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:32,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:44:32,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:32,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1578469249, now seen corresponding path program 1 times [2022-11-20 10:44:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:32,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515132484] [2022-11-20 10:44:32,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:32,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:32,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:32,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515132484] [2022-11-20 10:44:32,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515132484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:32,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:32,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:44:32,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120834726] [2022-11-20 10:44:32,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:32,360 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 10:44:32,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:44:32,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:44:32,413 INFO L87 Difference]: Start difference. First operand has 275 states, 274 states have (on average 1.3686131386861313) internal successors, (375), 274 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:32,548 INFO L93 Difference]: Finished difference Result 535 states and 717 transitions. [2022-11-20 10:44:32,549 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 535 states and 717 transitions. [2022-11-20 10:44:32,562 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 352 [2022-11-20 10:44:32,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 535 states to 515 states and 696 transitions. [2022-11-20 10:44:32,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 515 [2022-11-20 10:44:32,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 515 [2022-11-20 10:44:32,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 515 states and 696 transitions. [2022-11-20 10:44:32,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:44:32,582 INFO L218 hiAutomatonCegarLoop]: Abstraction has 515 states and 696 transitions. [2022-11-20 10:44:32,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states and 696 transitions. [2022-11-20 10:44:32,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 512. [2022-11-20 10:44:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 512 states have (on average 1.3515625) internal successors, (692), 511 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 692 transitions. [2022-11-20 10:44:32,663 INFO L240 hiAutomatonCegarLoop]: Abstraction has 512 states and 692 transitions. [2022-11-20 10:44:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:44:32,674 INFO L428 stractBuchiCegarLoop]: Abstraction has 512 states and 692 transitions. [2022-11-20 10:44:32,674 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 10:44:32,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 512 states and 692 transitions. [2022-11-20 10:44:32,682 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 349 [2022-11-20 10:44:32,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:44:32,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:44:32,684 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,685 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:32,685 INFO L748 eck$LassoCheckResult]: Stem: 1085#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1054#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 830#L772 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 831#L765 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1021#L780 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1022#L903 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1050#L880 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 820#L432-2 [2022-11-20 10:44:32,686 INFO L750 eck$LassoCheckResult]: Loop: 820#L432-2 assume !false; 936#L433 assume test_~splverifierCounter~0#1 < 4; 937#L434 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1046#L442 assume !(0 != test_~tmp~3#1); 906#L442-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1070#L452 assume !(0 != test_~tmp___0~0#1); 834#L452-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 959#L462 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 960#L470 assume !(0 != test_~tmp___1~0#1); 896#L470-2 assume { :begin_inline_timeShift } true; 888#L508 assume !(0 != ~pumpRunning~0); 845#L508-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 862#L592 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret34#1, isMethaneAlarm_~retValue_acc~3#1;havoc isMethaneAlarm_~retValue_acc~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 863#L961 isMethaneAlarm_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~3#1 := isMethaneAlarm_#t~ret34#1;havoc isMethaneAlarm_#t~ret34#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~3#1; 1049#L636 processEnvironment_#t~ret33#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~6#1 := processEnvironment_#t~ret33#1;havoc processEnvironment_#t~ret33#1; 1060#L596 assume 0 != processEnvironment_~tmp~6#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 923#L626-1 assume { :end_inline_deactivatePump } true; 924#L592-1 assume { :end_inline_processEnvironment } true; 870#L515-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_~tmp~9#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~9#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 871#L961-1 __utac_acc__Specification1_spec__1_#t~ret46#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9#1 := __utac_acc__Specification1_spec__1_#t~ret46#1;havoc __utac_acc__Specification1_spec__1_#t~ret46#1; 1072#L794 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9#1); 915#L794-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 819#L525 assume { :end_inline_timeShift } true; 820#L432-2 [2022-11-20 10:44:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-20 10:44:32,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:32,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943044583] [2022-11-20 10:44:32,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:32,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:32,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:32,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:44:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:32,741 INFO L85 PathProgramCache]: Analyzing trace with hash 198543928, now seen corresponding path program 1 times [2022-11-20 10:44:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:32,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140616746] [2022-11-20 10:44:32,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:32,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:44:32,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:44:32,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:44:32,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140616746] [2022-11-20 10:44:32,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140616746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:44:32,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:44:32,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:44:32,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262467393] [2022-11-20 10:44:32,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:44:32,815 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 10:44:32,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:44:32,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:44:32,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:44:32,821 INFO L87 Difference]: Start difference. First operand 512 states and 692 transitions. cyclomatic complexity: 183 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:32,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:44:32,974 INFO L93 Difference]: Finished difference Result 534 states and 683 transitions. [2022-11-20 10:44:32,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 534 states and 683 transitions. [2022-11-20 10:44:32,979 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 375 [2022-11-20 10:44:32,983 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 534 states to 534 states and 683 transitions. [2022-11-20 10:44:32,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 534 [2022-11-20 10:44:32,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 534 [2022-11-20 10:44:32,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 534 states and 683 transitions. [2022-11-20 10:44:32,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:44:32,992 INFO L218 hiAutomatonCegarLoop]: Abstraction has 534 states and 683 transitions. [2022-11-20 10:44:32,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states and 683 transitions. [2022-11-20 10:44:33,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2022-11-20 10:44:33,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 534 states have (on average 1.2790262172284643) internal successors, (683), 533 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:44:33,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 683 transitions. [2022-11-20 10:44:33,014 INFO L240 hiAutomatonCegarLoop]: Abstraction has 534 states and 683 transitions. [2022-11-20 10:44:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:44:33,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 534 states and 683 transitions. [2022-11-20 10:44:33,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 10:44:33,021 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 534 states and 683 transitions. [2022-11-20 10:44:33,024 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 375 [2022-11-20 10:44:33,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:44:33,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:44:33,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:33,026 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:44:33,026 INFO L748 eck$LassoCheckResult]: Stem: 2127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2075#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~10#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1880#L772 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1881#L765 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2049#L780 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 2050#L903 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2071#L880 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2072#L432-2 [2022-11-20 10:44:33,027 INFO L750 eck$LassoCheckResult]: Loop: 2072#L432-2 assume !false; 2188#L433 assume test_~splverifierCounter~0#1 < 4; 2186#L434 test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2184#L442 assume !(0 != test_~tmp~3#1); 2116#L442-2 test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2105#L452 assume !(0 != test_~tmp___0~0#1); 1885#L452-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1991#L462 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1992#L470 assume !(0 != test_~tmp___1~0#1); 1936#L470-2 assume { :begin_inline_timeShift } true; 1928#L508 assume !(0 != ~pumpRunning~0); 1929#L508-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret33#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1909#L592 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret32#1, processEnvironment__wrappee__lowWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5#1; 1910#L566-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1948#L540-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret43#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1; 2053#L1001-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1; 1890#L1006-3 isHighWaterLevel_#t~ret43#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret43#1;havoc isHighWaterLevel_#t~ret43#1; 1891#L694-9 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1973#L694-11 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1930#L700-3 processEnvironment__wrappee__highWaterSensor_#t~ret31#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret31#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret31#1; 1931#L544-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2065#L532-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2066#L540-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2174#L566-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1963#L592-1 assume { :end_inline_processEnvironment } true; 2165#L515-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret46#1, __utac_acc__Specification1_spec__1_#t~ret47#1, __utac_acc__Specification1_spec__1_~tmp~9#1, __utac_acc__Specification1_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification1_spec__1_~tmp~9#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~3#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1; 2166#L961-1 __utac_acc__Specification1_spec__1_#t~ret46#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~9#1 := __utac_acc__Specification1_spec__1_#t~ret46#1;havoc __utac_acc__Specification1_spec__1_#t~ret46#1; 2159#L794 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~9#1); 2158#L794-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 2189#L525 assume { :end_inline_timeShift } true; 2072#L432-2 [2022-11-20 10:44:33,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:33,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-20 10:44:33,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:33,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415891591] [2022-11-20 10:44:33,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,050 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:44:33,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:33,097 INFO L85 PathProgramCache]: Analyzing trace with hash -470767540, now seen corresponding path program 1 times [2022-11-20 10:44:33,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:33,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14146592] [2022-11-20 10:44:33,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:44:33,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:44:33,124 INFO L85 PathProgramCache]: Analyzing trace with hash -73576688, now seen corresponding path program 1 times [2022-11-20 10:44:33,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:44:33,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288715687] [2022-11-20 10:44:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:44:33,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:44:33,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:33,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:44:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:34,600 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:44:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:44:34,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:44:34 BoogieIcfgContainer [2022-11-20 10:44:34,676 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:44:34,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:44:34,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:44:34,677 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:44:34,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:44:31" (3/4) ... [2022-11-20 10:44:34,680 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 10:44:34,726 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:44:34,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:44:34,726 INFO L158 Benchmark]: Toolchain (without parser) took 4644.86ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 71.4MB in the beginning and 133.5MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:44:34,727 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:44:34,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 547.61ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 71.2MB in the beginning and 144.4MB in the end (delta: -73.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-11-20 10:44:34,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.39ms. Allocated memory is still 190.8MB. Free memory was 144.4MB in the beginning and 140.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:44:34,728 INFO L158 Benchmark]: Boogie Preprocessor took 98.04ms. Allocated memory is still 190.8MB. Free memory was 140.2MB in the beginning and 137.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 10:44:34,728 INFO L158 Benchmark]: RCFGBuilder took 1074.25ms. Allocated memory is still 190.8MB. Free memory was 136.7MB in the beginning and 135.1MB in the end (delta: 1.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 10:44:34,729 INFO L158 Benchmark]: BuchiAutomizer took 2788.94ms. Allocated memory is still 190.8MB. Free memory was 135.1MB in the beginning and 136.6MB in the end (delta: -1.5MB). Peak memory consumption was 466.0kB. Max. memory is 16.1GB. [2022-11-20 10:44:34,729 INFO L158 Benchmark]: Witness Printer took 49.15ms. Allocated memory is still 190.8MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:44:34,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 547.61ms. Allocated memory was 138.4MB in the beginning and 190.8MB in the end (delta: 52.4MB). Free memory was 71.2MB in the beginning and 144.4MB in the end (delta: -73.1MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.39ms. Allocated memory is still 190.8MB. Free memory was 144.4MB in the beginning and 140.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.04ms. Allocated memory is still 190.8MB. Free memory was 140.2MB in the beginning and 137.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1074.25ms. Allocated memory is still 190.8MB. Free memory was 136.7MB in the beginning and 135.1MB in the end (delta: 1.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 2788.94ms. Allocated memory is still 190.8MB. Free memory was 135.1MB in the beginning and 136.6MB in the end (delta: -1.5MB). Peak memory consumption was 466.0kB. Max. memory is 16.1GB. * Witness Printer took 49.15ms. Allocated memory is still 190.8MB. Free memory was 136.6MB in the beginning and 133.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 534 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 539 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 539 mSDsluCounter, 1114 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 468 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 646 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 432]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L821] int cleanupTimeShifts = 4; [L918] int waterLevel = 1; [L919] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L894] int retValue_acc ; [L895] int tmp ; [L899] FCALL select_helpers() [L900] FCALL select_features() [L901] CALL, EXPR valid_product() [L776] int retValue_acc ; [L779] retValue_acc = 1 [L780] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L901] RET, EXPR valid_product() [L901] tmp = valid_product() [L903] COND TRUE \read(tmp) [L905] FCALL setup() [L906] CALL runTest() [L888] CALL test() [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L432] COND TRUE 1 [L434] COND TRUE splverifierCounter < 4 [L440] tmp = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp)) [L450] tmp___0 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___0)) [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___2)) [L468] tmp___1 = __VERIFIER_nondet_int() [L470] COND FALSE !(\read(tmp___1)) [L479] CALL timeShift() [L508] COND FALSE !(\read(pumpRunning)) [L515] COND TRUE \read(systemActive) [L517] CALL processEnvironment() [L589] int tmp ; [L592] COND FALSE !(\read(pumpRunning)) [L607] CALL processEnvironment__wrappee__lowWaterSensor() [L563] int tmp ; [L566] COND FALSE !(\read(pumpRunning)) [L581] CALL processEnvironment__wrappee__highWaterSensor() [L537] int tmp ; [L540] COND TRUE ! pumpRunning [L542] CALL, EXPR isHighWaterLevel() [L686] int retValue_acc ; [L687] int tmp ; [L688] int tmp___0 ; [L692] CALL, EXPR isHighWaterSensorDry() [L998] int retValue_acc ; [L1001] COND TRUE waterLevel < 2 [L1002] retValue_acc = 1 [L1003] return (retValue_acc); [L692] RET, EXPR isHighWaterSensorDry() [L692] tmp = isHighWaterSensorDry() [L694] COND TRUE \read(tmp) [L695] tmp___0 = 0 [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); [L542] RET, EXPR isHighWaterLevel() [L542] tmp = isHighWaterLevel() [L544] COND FALSE !(\read(tmp)) [L550] FCALL processEnvironment__wrappee__base() [L581] RET processEnvironment__wrappee__highWaterSensor() [L607] RET processEnvironment__wrappee__lowWaterSensor() [L517] RET processEnvironment() [L523] CALL __utac_acc__Specification1_spec__1() [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isMethaneLevelCritical() [L957] int retValue_acc ; [L960] retValue_acc = methaneLevelCritical [L961] return (retValue_acc); [L792] RET, EXPR isMethaneLevelCritical() [L792] tmp = isMethaneLevelCritical() [L794] COND FALSE !(\read(tmp)) [L523] RET __utac_acc__Specification1_spec__1() [L479] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 432]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L821] int cleanupTimeShifts = 4; [L918] int waterLevel = 1; [L919] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L894] int retValue_acc ; [L895] int tmp ; [L899] FCALL select_helpers() [L900] FCALL select_features() [L901] CALL, EXPR valid_product() [L776] int retValue_acc ; [L779] retValue_acc = 1 [L780] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L901] RET, EXPR valid_product() [L901] tmp = valid_product() [L903] COND TRUE \read(tmp) [L905] FCALL setup() [L906] CALL runTest() [L888] CALL test() [L423] int splverifierCounter ; [L424] int tmp ; [L425] int tmp___0 ; [L426] int tmp___1 ; [L427] int tmp___2 ; [L430] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L432] COND TRUE 1 [L434] COND TRUE splverifierCounter < 4 [L440] tmp = __VERIFIER_nondet_int() [L442] COND FALSE !(\read(tmp)) [L450] tmp___0 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___0)) [L460] tmp___2 = __VERIFIER_nondet_int() [L462] COND FALSE !(\read(tmp___2)) [L468] tmp___1 = __VERIFIER_nondet_int() [L470] COND FALSE !(\read(tmp___1)) [L479] CALL timeShift() [L508] COND FALSE !(\read(pumpRunning)) [L515] COND TRUE \read(systemActive) [L517] CALL processEnvironment() [L589] int tmp ; [L592] COND FALSE !(\read(pumpRunning)) [L607] CALL processEnvironment__wrappee__lowWaterSensor() [L563] int tmp ; [L566] COND FALSE !(\read(pumpRunning)) [L581] CALL processEnvironment__wrappee__highWaterSensor() [L537] int tmp ; [L540] COND TRUE ! pumpRunning [L542] CALL, EXPR isHighWaterLevel() [L686] int retValue_acc ; [L687] int tmp ; [L688] int tmp___0 ; [L692] CALL, EXPR isHighWaterSensorDry() [L998] int retValue_acc ; [L1001] COND TRUE waterLevel < 2 [L1002] retValue_acc = 1 [L1003] return (retValue_acc); [L692] RET, EXPR isHighWaterSensorDry() [L692] tmp = isHighWaterSensorDry() [L694] COND TRUE \read(tmp) [L695] tmp___0 = 0 [L699] retValue_acc = tmp___0 [L700] return (retValue_acc); [L542] RET, EXPR isHighWaterLevel() [L542] tmp = isHighWaterLevel() [L544] COND FALSE !(\read(tmp)) [L550] FCALL processEnvironment__wrappee__base() [L581] RET processEnvironment__wrappee__highWaterSensor() [L607] RET processEnvironment__wrappee__lowWaterSensor() [L517] RET processEnvironment() [L523] CALL __utac_acc__Specification1_spec__1() [L787] int tmp ; [L788] int tmp___0 ; [L792] CALL, EXPR isMethaneLevelCritical() [L957] int retValue_acc ; [L960] retValue_acc = methaneLevelCritical [L961] return (retValue_acc); [L792] RET, EXPR isMethaneLevelCritical() [L792] tmp = isMethaneLevelCritical() [L794] COND FALSE !(\read(tmp)) [L523] RET __utac_acc__Specification1_spec__1() [L479] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 10:44:34,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa0f9537-720c-4494-894b-699ea5f850eb/bin/uautomizer-ug76WZFUDN/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)