./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3 --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 9fc6dbb951a9c50abd4a157c1e2c0878ba2a1c61 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:55:57,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:55:57,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:55:57,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:55:57,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:55:57,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:55:57,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:55:57,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:55:57,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:55:57,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:55:57,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:55:57,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:55:57,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:55:57,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:55:57,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:55:57,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:55:57,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:55:57,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:55:57,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:55:57,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:55:57,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:55:57,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:55:57,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:55:57,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:55:57,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:55:57,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:55:57,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:55:57,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:55:57,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:55:57,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:55:57,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:55:57,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:55:57,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:55:57,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:55:57,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:55:57,640 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:55:57,641 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:55:57,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:55:57,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:55:57,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:55:57,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:55:57,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:55:57,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:55:57,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:55:57,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:55:57,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:55:57,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:55:57,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:55:57,680 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:55:57,680 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:55:57,681 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:55:57,681 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:55:57,681 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:55:57,681 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:55:57,682 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:55:57,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:55:57,682 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:55:57,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:55:57,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:55:57,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:55:57,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:55:57,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:55:57,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:55:57,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:55:57,684 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:55:57,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:55:57,685 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:55:57,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:55:57,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:55:57,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:55:57,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:55:57,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:55:57,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:55:57,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:55:57,688 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:55:57,688 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_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fc6dbb951a9c50abd4a157c1e2c0878ba2a1c61 [2021-10-15 19:55:57,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:55:58,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:55:58,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:55:58,028 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:55:58,029 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:55:58,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c [2021-10-15 19:55:58,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/data/0c19655fa/38f34bb57fa74647816e0096042205b4/FLAG6fbe7812a [2021-10-15 19:55:58,739 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:55:58,740 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c [2021-10-15 19:55:58,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/data/0c19655fa/38f34bb57fa74647816e0096042205b4/FLAG6fbe7812a [2021-10-15 19:55:59,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/data/0c19655fa/38f34bb57fa74647816e0096042205b4 [2021-10-15 19:55:59,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:55:59,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:55:59,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:55:59,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:55:59,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:55:59,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50225d02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59, skipping insertion in model container [2021-10-15 19:55:59,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:55:59,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:55:59,344 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_e0aff994-e927-40a4-b16a-06c3d8b00f10/sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c[2141,2154] [2021-10-15 19:55:59,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:55:59,479 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:55:59,518 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_e0aff994-e927-40a4-b16a-06c3d8b00f10/sv-benchmarks/c/product-lines/minepump_spec5_product25.cil.c[2141,2154] [2021-10-15 19:55:59,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:55:59,692 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:55:59,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59 WrapperNode [2021-10-15 19:55:59,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:55:59,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:55:59,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:55:59,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:55:59,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:55:59,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:55:59,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:55:59,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:55:59,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:55:59,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:55:59,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:55:59,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:55:59,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (1/1) ... [2021-10-15 19:55:59,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:55:59,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:55:59,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:55:59,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:56:00,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:56:00,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:56:00,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:56:00,880 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:56:00,880 INFO L299 CfgBuilder]: Removed 110 assume(true) statements. [2021-10-15 19:56:00,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:00 BoogieIcfgContainer [2021-10-15 19:56:00,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:56:00,884 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:56:00,884 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:56:00,889 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:56:00,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:00,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:55:59" (1/3) ... [2021-10-15 19:56:00,893 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@683334b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:56:00, skipping insertion in model container [2021-10-15 19:56:00,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:00,893 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:55:59" (2/3) ... [2021-10-15 19:56:00,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@683334b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:56:00, skipping insertion in model container [2021-10-15 19:56:00,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:00,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:00" (3/3) ... [2021-10-15 19:56:00,896 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product25.cil.c [2021-10-15 19:56:00,949 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:56:00,949 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:56:00,950 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:56:00,950 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:56:00,950 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:56:00,950 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:56:00,950 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:56:00,950 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:56:00,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:00,995 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-15 19:56:00,995 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:00,995 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:01,004 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:01,004 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:01,005 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:56:01,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:01,012 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-15 19:56:01,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:01,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:01,013 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:01,014 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:01,019 INFO L791 eck$LassoCheckResult]: Stem: 61#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(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 50#L-1true havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 72#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 30#L83true main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 3#L433true assume 0 != main_~tmp~4; 48#L408true ~switchedOnBeforeTS~0 := 0; 65#L909true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 66#L930-1true [2021-10-15 19:56:01,020 INFO L793 eck$LassoCheckResult]: Loop: 66#L930-1true assume !false; 8#L295true assume test_~splverifierCounter~0 < 4; 63#L296true test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 38#L304true assume !(0 != test_~tmp~3); 41#L304-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 51#L314true assume !(0 != test_~tmp___0~1); 67#L314-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 22#L324true assume 0 != test_~tmp___2~0; 14#L330-2true havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 24#L221true __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 23#L919true assume !(0 != ~pumpRunning~0); 33#L118true assume !(0 != ~systemActive~0); 26#L125true havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 19#L523true __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 75#L930true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 66#L930-1true [2021-10-15 19:56:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:01,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-15 19:56:01,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:01,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913641284] [2021-10-15 19:56:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:01,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:01,338 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:01,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:01,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:01,547 INFO L82 PathProgramCache]: Analyzing trace with hash 94196908, now seen corresponding path program 1 times [2021-10-15 19:56:01,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:01,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793729708] [2021-10-15 19:56:01,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:01,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:01,555 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:01,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:01,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2028222118, now seen corresponding path program 1 times [2021-10-15 19:56:01,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:01,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673993773] [2021-10-15 19:56:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:01,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:56:01,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:56:01,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:56:01,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673993773] [2021-10-15 19:56:01,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673993773] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:56:01,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:56:01,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:56:01,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761460114] [2021-10-15 19:56:01,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:56:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:56:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:56:01,906 INFO L87 Difference]: Start difference. First operand has 81 states, 80 states have (on average 1.5) internal successors, (120), 80 states have internal predecessors, (120), 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) [2021-10-15 19:56:02,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:56:02,152 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2021-10-15 19:56:02,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 19:56:02,157 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 81 states and 109 transitions. [2021-10-15 19:56:02,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-15 19:56:02,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 81 states to 74 states and 102 transitions. [2021-10-15 19:56:02,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 74 [2021-10-15 19:56:02,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 74 [2021-10-15 19:56:02,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 102 transitions. [2021-10-15 19:56:02,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:56:02,175 INFO L681 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-15 19:56:02,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 102 transitions. [2021-10-15 19:56:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-15 19:56:02,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 73 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 102 transitions. [2021-10-15 19:56:02,218 INFO L704 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-15 19:56:02,219 INFO L587 BuchiCegarLoop]: Abstraction has 74 states and 102 transitions. [2021-10-15 19:56:02,219 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:56:02,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 102 transitions. [2021-10-15 19:56:02,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-15 19:56:02,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:02,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:02,230 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:02,230 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:02,230 INFO L791 eck$LassoCheckResult]: Stem: 252#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(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 244#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 245#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 225#L83 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 180#L433 assume 0 != main_~tmp~4; 181#L408 ~switchedOnBeforeTS~0 := 0; 243#L909 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 187#L930-1 [2021-10-15 19:56:02,230 INFO L793 eck$LassoCheckResult]: Loop: 187#L930-1 assume !false; 188#L295 assume test_~splverifierCounter~0 < 4; 189#L296 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 232#L304 assume !(0 != test_~tmp~3); 234#L304-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 236#L314 assume !(0 != test_~tmp___0~1); 247#L314-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 217#L324 assume 0 != test_~tmp___2~0; 204#L330-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 205#L221 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 219#L919 assume !(0 != ~pumpRunning~0); 185#L118 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 226#L150 assume !(0 != ~pumpRunning~0); 221#L125 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 212#L523 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 213#L930 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 187#L930-1 [2021-10-15 19:56:02,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-15 19:56:02,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817004447] [2021-10-15 19:56:02,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,314 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:02,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1401856253, now seen corresponding path program 1 times [2021-10-15 19:56:02,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847168045] [2021-10-15 19:56:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,439 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,476 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:02,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1576616887, now seen corresponding path program 1 times [2021-10-15 19:56:02,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796816365] [2021-10-15 19:56:02,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:56:02,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:56:02,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:56:02,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796816365] [2021-10-15 19:56:02,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796816365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:56:02,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:56:02,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:56:02,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185570907] [2021-10-15 19:56:02,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:56:02,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:56:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:56:02,674 INFO L87 Difference]: Start difference. First operand 74 states and 102 transitions. cyclomatic complexity: 30 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-10-15 19:56:02,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:56:02,813 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2021-10-15 19:56:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:56:02,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 288 transitions. [2021-10-15 19:56:02,819 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-15 19:56:02,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 288 transitions. [2021-10-15 19:56:02,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2021-10-15 19:56:02,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2021-10-15 19:56:02,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 288 transitions. [2021-10-15 19:56:02,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:56:02,825 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 288 transitions. [2021-10-15 19:56:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 288 transitions. [2021-10-15 19:56:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 141. [2021-10-15 19:56:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 141 states have (on average 1.3475177304964538) internal successors, (190), 140 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:02,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 190 transitions. [2021-10-15 19:56:02,837 INFO L704 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-15 19:56:02,837 INFO L587 BuchiCegarLoop]: Abstraction has 141 states and 190 transitions. [2021-10-15 19:56:02,837 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:56:02,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 141 states and 190 transitions. [2021-10-15 19:56:02,839 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 95 [2021-10-15 19:56:02,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:02,839 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:02,840 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:02,840 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:56:02,840 INFO L791 eck$LassoCheckResult]: Stem: 565#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(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(13);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string36.base, #t~string36.offset, 1);call write~init~int(77, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(101, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(116, #t~string36.base, 3 + #t~string36.offset, 1);call write~init~int(104, #t~string36.base, 4 + #t~string36.offset, 1);call write~init~int(58, #t~string36.base, 5 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 6 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string38.base, #t~string38.offset, 1);call write~init~int(82, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(73, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(84, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 4 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string40.base, #t~string40.offset, 1);call write~init~int(75, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0; 554#L-1 havoc main_#res;havoc main_#t~ret32, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 555#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 531#L83 main_#t~ret32 := valid_product_#res;main_~tmp~4 := main_#t~ret32;havoc main_#t~ret32; 480#L433 assume 0 != main_~tmp~4; 481#L408 ~switchedOnBeforeTS~0 := 0; 551#L909 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 487#L930-1 [2021-10-15 19:56:02,841 INFO L793 eck$LassoCheckResult]: Loop: 487#L930-1 assume !false; 488#L295 assume test_~splverifierCounter~0 < 4; 489#L296 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 539#L304 assume !(0 != test_~tmp~3); 541#L304-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 544#L314 assume !(0 != test_~tmp___0~1); 557#L314-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 519#L324 assume 0 != test_~tmp___2~0; 503#L330-2 havoc __utac_acc__Specification5_spec__2_#t~ret78;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 504#L221 __utac_acc__Specification5_spec__2_#t~ret78 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret78;havoc __utac_acc__Specification5_spec__2_#t~ret78; 521#L919 assume !(0 != ~pumpRunning~0); 522#L118 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 533#L150 assume !(0 != ~pumpRunning~0); 525#L125 havoc __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_#t~ret80, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~2;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~2;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 526#L523 __utac_acc__Specification5_spec__3_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 571#L930 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~3;havoc isPumpRunning_~retValue_acc~3;isPumpRunning_~retValue_acc~3 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~3; 572#L221-1 __utac_acc__Specification5_spec__3_#t~ret80 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~2 := __utac_acc__Specification5_spec__3_#t~ret80;havoc __utac_acc__Specification5_spec__3_#t~ret80; 536#L934 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2); 487#L930-1 [2021-10-15 19:56:02,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-15 19:56:02,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989827031] [2021-10-15 19:56:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,882 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,931 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:02,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1435857662, now seen corresponding path program 1 times [2021-10-15 19:56:02,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370394922] [2021-10-15 19:56:02,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,937 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:02,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:02,945 INFO L82 PathProgramCache]: Analyzing trace with hash 994612932, now seen corresponding path program 1 times [2021-10-15 19:56:02,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:02,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192884679] [2021-10-15 19:56:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:02,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:02,981 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:03,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:57:06,126 WARN L207 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-15 19:58:08,899 WARN L207 SmtUtils]: Spent 29.49 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-15 19:58:09,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:58:09 BoogieIcfgContainer [2021-10-15 19:58:09,013 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:58:09,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:58:09,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:58:09,014 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:58:09,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:00" (3/4) ... [2021-10-15 19:58:09,017 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:58:09,082 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:58:09,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:58:09,084 INFO L168 Benchmark]: Toolchain (without parser) took 130028.35 ms. Allocated memory was 104.9 MB in the beginning and 174.1 MB in the end (delta: 69.2 MB). Free memory was 70.6 MB in the beginning and 125.3 MB in the end (delta: -54.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,085 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:58:09,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.16 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 70.3 MB in the beginning and 101.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.87 ms. Allocated memory is still 136.3 MB. Free memory was 101.6 MB in the beginning and 98.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,087 INFO L168 Benchmark]: Boogie Preprocessor took 87.17 ms. Allocated memory is still 136.3 MB. Free memory was 98.8 MB in the beginning and 95.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,088 INFO L168 Benchmark]: RCFGBuilder took 992.03 ms. Allocated memory is still 136.3 MB. Free memory was 95.9 MB in the beginning and 58.9 MB in the end (delta: 37.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,089 INFO L168 Benchmark]: BuchiAutomizer took 128129.25 ms. Allocated memory was 136.3 MB in the beginning and 174.1 MB in the end (delta: 37.7 MB). Free memory was 58.9 MB in the beginning and 127.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,089 INFO L168 Benchmark]: Witness Printer took 69.12 ms. Allocated memory is still 174.1 MB. Free memory was 127.4 MB in the beginning and 125.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:58:09,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 104.9 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 636.16 ms. Allocated memory was 104.9 MB in the beginning and 136.3 MB in the end (delta: 31.5 MB). Free memory was 70.3 MB in the beginning and 101.6 MB in the end (delta: -31.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.87 ms. Allocated memory is still 136.3 MB. Free memory was 101.6 MB in the beginning and 98.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.17 ms. Allocated memory is still 136.3 MB. Free memory was 98.8 MB in the beginning and 95.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 992.03 ms. Allocated memory is still 136.3 MB. Free memory was 95.9 MB in the beginning and 58.9 MB in the end (delta: 37.0 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 128129.25 ms. Allocated memory was 136.3 MB in the beginning and 174.1 MB in the end (delta: 37.7 MB). Free memory was 58.9 MB in the beginning and 127.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 60.1 MB. Max. memory is 16.1 GB. * Witness Printer took 69.12 ms. Allocated memory is still 174.1 MB. Free memory was 127.4 MB in the beginning and 125.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 141 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 128.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 127.4s. Construction of modules took 0.2s. 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 40.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 69 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 141 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 260 SDtfs, 640 SDslu, 300 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 243.3ms 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: 294]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=15553} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=15553, NULL=0, NULL=34211, retValue_acc=0, NULL=0, NULL=34206, NULL=34193, NULL=0, NULL=34210, NULL=34207, methaneLevelCritical=0, tmp=1, tmp=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=34194, NULL=34192, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52c53a45=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4543d1fa=0, NULL=34189, switchedOnBeforeTS=0, NULL=34201, NULL=34198, \result=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11b70973=0, NULL=34195, NULL=34202, \result=1, NULL=34196, head=0, pumpRunning=0, tmp___0=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d87e4c7=0, NULL=34214, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c3ca39=0, NULL=0, NULL=34209, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da5a36b=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@642dd38f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f1a2eb3=60, NULL=34200, NULL=34191, NULL=0, NULL=0, NULL=34212, NULL=0, NULL=0, NULL=34203, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fa0ad99=0, retValue_acc=1, tmp___2=60, NULL=0, tmp___0=0, NULL=15554, splverifierCounter=0, NULL=0, NULL=34205, NULL=34199, NULL=34213, tmp=0, head=0, NULL=0, NULL=34188, NULL=0, NULL=0, NULL=34197, NULL=0, NULL=34190, NULL=34204, NULL=34208, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L106] int pumpRunning = 0; [L107] int systemActive = 1; [L349] int cleanupTimeShifts = 4; [L448] int waterLevel = 1; [L449] int methaneLevelCritical = 0; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L903] int switchedOnBeforeTS ; [L424] int retValue_acc ; [L425] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L431] tmp = valid_product() [L433] COND TRUE \read(tmp) [L908] switchedOnBeforeTS = 0 [L285] int splverifierCounter ; [L286] int tmp ; [L287] int tmp___0 ; [L288] int tmp___1 ; [L289] int tmp___2 ; [L292] splverifierCounter = 0 Loop: [L294] COND TRUE 1 [L296] COND TRUE splverifierCounter < 4 [L302] tmp = __VERIFIER_nondet_int() [L304] COND FALSE !(\read(tmp)) [L312] tmp___0 = __VERIFIER_nondet_int() [L314] COND FALSE !(\read(tmp___0)) [L322] tmp___2 = __VERIFIER_nondet_int() [L324] COND TRUE \read(tmp___2) [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L917] switchedOnBeforeTS = isPumpRunning() [L118] COND FALSE !(\read(pumpRunning)) [L125] COND TRUE \read(systemActive) [L147] int tmp ; [L150] COND FALSE !(\read(pumpRunning)) [L923] int tmp ; [L924] int tmp___0 ; [L519] int retValue_acc ; [L522] retValue_acc = waterLevel [L523] return (retValue_acc); [L928] tmp = getWaterLevel() [L930] COND TRUE tmp != 2 [L217] int retValue_acc ; [L220] retValue_acc = pumpRunning [L221] return (retValue_acc); [L932] tmp___0 = isPumpRunning() [L934] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:58:09,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0aff994-e927-40a4-b16a-06c3d8b00f10/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...