./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX --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 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:33:24,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:33:24,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:33:24,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:33:24,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:33:24,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:33:24,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:33:24,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:33:24,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:33:24,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:33:24,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:33:24,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:33:24,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:33:24,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:33:24,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:33:24,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:33:24,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:33:24,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:33:24,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:33:24,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:33:24,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:33:24,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:33:24,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:33:24,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:33:24,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:33:24,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:33:24,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:33:24,534 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:33:24,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:33:24,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:33:24,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:33:24,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:33:24,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:33:24,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:33:24,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:33:24,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:33:24,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:33:24,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:33:24,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:33:24,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:33:24,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:33:24,555 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:33:24,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:33:24,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:33:24,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:33:24,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:33:24,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:33:24,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:33:24,630 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:33:24,631 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:33:24,631 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:33:24,631 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:33:24,633 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:33:24,633 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:33:24,634 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:33:24,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:33:24,634 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:33:24,635 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:33:24,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:33:24,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:33:24,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:33:24,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:33:24,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:33:24,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:33:24,637 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:33:24,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:33:24,637 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:33:24,638 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:33:24,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:33:24,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:33:24,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:33:24,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:33:24,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:33:24,642 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:33:24,644 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:33:24,644 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_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17e2337fd721ce0bbba718ba7912b3f6432f0e21a2bb22404280d45b14116418 [2021-11-09 09:33:25,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:33:25,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:33:25,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:33:25,064 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:33:25,065 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:33:25,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2021-11-09 09:33:25,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/data/bd868fe8c/83b143f1627c41239df412fc922b0539/FLAGdb0d7ef05 [2021-11-09 09:33:25,893 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:33:25,893 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c [2021-11-09 09:33:25,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/data/bd868fe8c/83b143f1627c41239df412fc922b0539/FLAGdb0d7ef05 [2021-11-09 09:33:26,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/data/bd868fe8c/83b143f1627c41239df412fc922b0539 [2021-11-09 09:33:26,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:33:26,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:33:26,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:26,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:33:26,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:33:26,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72092550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26, skipping insertion in model container [2021-11-09 09:33:26,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:33:26,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:26,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c[3727,3740] [2021-11-09 09:33:26,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:26,656 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:26,700 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/sv-benchmarks/c/product-lines/minepump_spec5_product21.cil.c[3727,3740] [2021-11-09 09:33:26,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:26,824 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:26,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26 WrapperNode [2021-11-09 09:33:26,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:26,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:26,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:26,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:26,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:26,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:26,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:26,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:26,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:26,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:26,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:26,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:26,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:26,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (1/1) ... [2021-11-09 09:33:27,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:33:27,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:27,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:27,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:33:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:27,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:33:28,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:33:28,301 INFO L299 CfgBuilder]: Removed 170 assume(true) statements. [2021-11-09 09:33:28,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:28 BoogieIcfgContainer [2021-11-09 09:33:28,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:33:28,306 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:33:28,306 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:33:28,312 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:33:28,313 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:28,313 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:33:26" (1/3) ... [2021-11-09 09:33:28,315 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63074594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:33:28, skipping insertion in model container [2021-11-09 09:33:28,315 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:28,315 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:26" (2/3) ... [2021-11-09 09:33:28,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63074594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:33:28, skipping insertion in model container [2021-11-09 09:33:28,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:28,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:28" (3/3) ... [2021-11-09 09:33:28,318 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product21.cil.c [2021-11-09 09:33:28,380 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:33:28,380 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:33:28,380 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:33:28,380 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:33:28,381 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:33:28,381 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:33:28,381 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:33:28,381 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:33:28,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:28,457 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-09 09:33:28,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:28,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:28,467 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:28,468 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:28,468 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:33:28,469 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:28,486 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-11-09 09:33:28,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:28,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:28,487 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:28,487 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:28,499 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 35#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 28#L332true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 87#L340true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 86#L142true assume 0 != main_~tmp~0; 94#L113true ~switchedOnBeforeTS~0 := 0; 14#L165true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 24#L186-1true [2021-11-09 09:33:28,500 INFO L793 eck$LassoCheckResult]: Loop: 24#L186-1true assume !false; 49#L722true assume test_~splverifierCounter~0 < 4; 110#L723true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 78#L731true assume !(0 != test_~tmp~5); 82#L731-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 104#L741true assume !(0 != test_~tmp___0~1); 97#L741-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 22#L751true assume 0 != test_~tmp___2~0; 44#L757-2true havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 36#L899true __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 6#L175true assume !(0 != ~pumpRunning~0); 113#L788true assume !(0 != ~systemActive~0); 9#L795true havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 41#L296true __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 53#L186true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 24#L186-1true [2021-11-09 09:33:28,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:28,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-11-09 09:33:28,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:28,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567411417] [2021-11-09 09:33:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:28,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:28,872 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:29,128 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:29,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 95582188, now seen corresponding path program 1 times [2021-11-09 09:33:29,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:29,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569862973] [2021-11-09 09:33:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:29,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:29,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:29,181 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:29,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:29,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2029607398, now seen corresponding path program 1 times [2021-11-09 09:33:29,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:29,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812817889] [2021-11-09 09:33:29,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:29,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:33:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:33:29,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:33:29,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812817889] [2021-11-09 09:33:29,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812817889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:33:29,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:33:29,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:33:29,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663457135] [2021-11-09 09:33:29,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:33:29,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:33:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:33:29,675 INFO L87 Difference]: Start difference. First operand has 111 states, 110 states have (on average 1.5) internal successors, (165), 110 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:33:30,041 INFO L93 Difference]: Finished difference Result 111 states and 154 transitions. [2021-11-09 09:33:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:33:30,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 154 transitions. [2021-11-09 09:33:30,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-09 09:33:30,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 104 states and 147 transitions. [2021-11-09 09:33:30,055 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2021-11-09 09:33:30,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2021-11-09 09:33:30,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2021-11-09 09:33:30,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:33:30,059 INFO L681 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-11-09 09:33:30,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2021-11-09 09:33:30,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-09 09:33:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 103 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 147 transitions. [2021-11-09 09:33:30,102 INFO L704 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-11-09 09:33:30,102 INFO L587 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2021-11-09 09:33:30,102 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:33:30,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 104 states and 147 transitions. [2021-11-09 09:33:30,104 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-09 09:33:30,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:30,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:30,105 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:30,105 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:30,106 INFO L791 eck$LassoCheckResult]: Stem: 342#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 297#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 289#L332 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 290#L340 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 336#L142 assume 0 != main_~tmp~0; 337#L113 ~switchedOnBeforeTS~0 := 0; 262#L165 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 263#L186-1 [2021-11-09 09:33:30,106 INFO L793 eck$LassoCheckResult]: Loop: 263#L186-1 assume !false; 282#L722 assume test_~splverifierCounter~0 < 4; 313#L723 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 332#L731 assume !(0 != test_~tmp~5); 292#L731-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 334#L741 assume !(0 != test_~tmp___0~1); 326#L741-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 277#L751 assume 0 != test_~tmp___2~0; 279#L757-2 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 298#L899 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 242#L175 assume !(0 != ~pumpRunning~0); 243#L788 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 270#L846 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret61, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 271#L820-1 assume !(0 != ~pumpRunning~0); 250#L795 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 251#L296 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 307#L186 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 263#L186-1 [2021-11-09 09:33:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-11-09 09:33:30,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261847061] [2021-11-09 09:33:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:30,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,249 INFO L85 PathProgramCache]: Analyzing trace with hash -489209282, now seen corresponding path program 1 times [2021-11-09 09:33:30,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654320101] [2021-11-09 09:33:30,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,257 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,267 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:30,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1611821640, now seen corresponding path program 1 times [2021-11-09 09:33:30,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564258140] [2021-11-09 09:33:30,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:33:30,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:33:30,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:33:30,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564258140] [2021-11-09 09:33:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564258140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:33:30,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:33:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:33:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885974315] [2021-11-09 09:33:30,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:33:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:33:30,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:33:30,625 INFO L87 Difference]: Start difference. First operand 104 states and 147 transitions. cyclomatic complexity: 45 Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:33:30,815 INFO L93 Difference]: Finished difference Result 302 states and 432 transitions. [2021-11-09 09:33:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:33:30,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 432 transitions. [2021-11-09 09:33:30,820 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 184 [2021-11-09 09:33:30,823 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 302 states and 432 transitions. [2021-11-09 09:33:30,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 302 [2021-11-09 09:33:30,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 302 [2021-11-09 09:33:30,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 302 states and 432 transitions. [2021-11-09 09:33:30,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:33:30,828 INFO L681 BuchiCegarLoop]: Abstraction has 302 states and 432 transitions. [2021-11-09 09:33:30,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states and 432 transitions. [2021-11-09 09:33:30,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 201. [2021-11-09 09:33:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 201 states have (on average 1.407960199004975) internal successors, (283), 200 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:30,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 283 transitions. [2021-11-09 09:33:30,847 INFO L704 BuchiCegarLoop]: Abstraction has 201 states and 283 transitions. [2021-11-09 09:33:30,847 INFO L587 BuchiCegarLoop]: Abstraction has 201 states and 283 transitions. [2021-11-09 09:33:30,847 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:33:30,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 201 states and 283 transitions. [2021-11-09 09:33:30,849 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 138 [2021-11-09 09:33:30,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:30,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:30,850 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:30,850 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:30,851 INFO L791 eck$LassoCheckResult]: Stem: 774#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(21);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 721#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 713#L332 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 714#L340 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 768#L142 assume 0 != main_~tmp~0; 769#L113 ~switchedOnBeforeTS~0 := 0; 686#L165 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 687#L186-1 [2021-11-09 09:33:30,851 INFO L793 eck$LassoCheckResult]: Loop: 687#L186-1 assume !false; 704#L722 assume test_~splverifierCounter~0 < 4; 741#L723 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 858#L731 assume !(0 != test_~tmp~5); 857#L731-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 856#L741 assume !(0 != test_~tmp___0~1); 854#L741-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 853#L751 assume 0 != test_~tmp___2~0; 851#L757-2 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 850#L899 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 848#L175 assume !(0 != ~pumpRunning~0); 762#L788 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 844#L846 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret61, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 842#L820-1 assume !(0 != ~pumpRunning~0); 672#L795 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 673#L296 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 744#L186 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 745#L899-1 __utac_acc__Specification5_spec__3_#t~ret10 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret10;havoc __utac_acc__Specification5_spec__3_#t~ret10; 738#L190 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 687#L186-1 [2021-11-09 09:33:30,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-11-09 09:33:30,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473820748] [2021-11-09 09:33:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,895 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,959 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1978697447, now seen corresponding path program 1 times [2021-11-09 09:33:30,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286314662] [2021-11-09 09:33:30,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:30,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,967 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:30,975 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:30,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:30,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1522585107, now seen corresponding path program 1 times [2021-11-09 09:33:30,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:30,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283158409] [2021-11-09 09:33:30,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:30,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:31,011 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:31,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:31,061 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:34:48,680 WARN L207 SmtUtils]: Spent 1.29 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-11-09 09:36:02,738 WARN L207 SmtUtils]: Spent 34.77 s on a formula simplification that was a NOOP. DAG size: 435 [2021-11-09 09:36:02,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:36:02 BoogieIcfgContainer [2021-11-09 09:36:02,894 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:36:02,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:36:02,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:36:02,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:36:02,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:28" (3/4) ... [2021-11-09 09:36:02,898 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:36:02,949 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:36:02,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:36:02,951 INFO L168 Benchmark]: Toolchain (without parser) took 156801.32 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 76.3 MB in the beginning and 75.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,951 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 107.0 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:36:02,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.82 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.17 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 70.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,953 INFO L168 Benchmark]: Boogie Preprocessor took 75.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 67.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,954 INFO L168 Benchmark]: RCFGBuilder took 1313.07 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.9 MB in the beginning and 89.4 MB in the end (delta: -21.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,954 INFO L168 Benchmark]: BuchiAutomizer took 154588.33 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 89.4 MB in the beginning and 77.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,955 INFO L168 Benchmark]: Witness Printer took 55.08 ms. Allocated memory is still 157.3 MB. Free memory was 77.4 MB in the beginning and 75.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:36:02,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 107.0 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 674.82 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.17 ms. Allocated memory is still 107.0 MB. Free memory was 74.2 MB in the beginning and 70.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.60 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 67.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1313.07 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 67.9 MB in the beginning and 89.4 MB in the end (delta: -21.5 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 154588.33 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 89.4 MB in the beginning and 77.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 79.9 MB. Max. memory is 16.1 GB. * Witness Printer took 55.08 ms. Allocated memory is still 157.3 MB. Free memory was 77.4 MB in the beginning and 75.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 201 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 154.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 153.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 101 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 201 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 344 SDtfs, 1072 SDslu, 466 SDs, 0 SdLazy, 103 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 721]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, retValue_acc=0, NULL=1, NULL=0, NULL=15007, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@749fa28c=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=14989, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=15000, NULL=0, tmp=0, tmp=1, tmp___1=0, NULL=0, NULL=0, NULL=14994, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66c46b36=0, retValue_acc=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=15004, NULL=14998, NULL=14987, NULL=15014, \result=0, NULL=14997, NULL=0, systemActive=1, waterLevel=1, NULL=15001, \result=1, NULL=0, NULL=0, NULL=0, NULL=15013, NULL=14999, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=15011, tmp___0=0, \result=1, NULL=14993, head=0, pumpRunning=0, tmp=1, NULL=14996, \result=0, NULL=14988, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dcc8b8d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7921f45b=0, NULL=0, NULL=0, retValue_acc=1, NULL=14995, NULL=0, NULL=0, NULL=0, NULL=15006, NULL=15005, NULL=0, NULL=15009, tmp___2=51, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=15008, NULL=15012, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f85e520=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e3bfed7=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5732b66=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4775cee=0, head=0, NULL=0, tmp=0, NULL=14990, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47125d78=0, NULL=15003, NULL=15010, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fa4044e=0, NULL=14991, NULL=15002, NULL=14992} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L159] int switchedOnBeforeTS ; [L221] int waterLevel = 1; [L222] int methaneLevelCritical = 0; [L514] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L778] int pumpRunning = 0; [L779] int systemActive = 1; [L133] int retValue_acc ; [L134] int tmp ; [L336] int retValue_acc ; [L339] retValue_acc = 1 [L340] return (retValue_acc); [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L164] switchedOnBeforeTS = 0 [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L173] switchedOnBeforeTS = isPumpRunning() [L788] COND FALSE !(\read(pumpRunning)) [L795] COND TRUE \read(systemActive) [L843] int tmp ; [L846] COND FALSE !(\read(pumpRunning)) [L817] int tmp ; [L820] COND FALSE !(\read(pumpRunning)) [L179] int tmp ; [L180] int tmp___0 ; [L292] int retValue_acc ; [L295] retValue_acc = waterLevel [L296] return (retValue_acc); [L184] tmp = getWaterLevel() [L186] COND TRUE tmp != 2 [L895] int retValue_acc ; [L898] retValue_acc = pumpRunning [L899] return (retValue_acc); [L188] tmp___0 = isPumpRunning() [L190] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:36:03,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f29ad7-ed49-42fd-b989-61984dbf112d/bin/uautomizer-IVEQpCNsaX/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)