./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg --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 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-b2eff8b [2021-10-28 09:24:01,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:24:01,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:24:01,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:24:01,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:24:01,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:24:01,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:24:01,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:24:01,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:24:01,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:24:01,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:24:01,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:24:01,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:24:01,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:24:01,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:24:01,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:24:01,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:24:01,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:24:01,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:24:01,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:24:01,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:24:01,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:24:01,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:24:01,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:24:01,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:24:01,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:24:01,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:24:01,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:24:01,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:24:01,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:24:01,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:24:01,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:24:01,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:24:01,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:24:01,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:24:01,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:24:01,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:24:01,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:24:01,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:24:01,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:24:01,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:24:01,497 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:24:01,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:24:01,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:24:01,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:24:01,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:24:01,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:24:01,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:24:01,544 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:24:01,545 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:24:01,545 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:24:01,545 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:24:01,546 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:24:01,546 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:24:01,547 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:24:01,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:24:01,547 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:24:01,547 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:24:01,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:24:01,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:24:01,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:24:01,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:24:01,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:24:01,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:24:01,549 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:24:01,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:24:01,550 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:24:01,550 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:24:01,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:24:01,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:24:01,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:24:01,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:24:01,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:24:01,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:24:01,555 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:24:01,555 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_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8729c68adf95fe52029d1e2fee3adcb5035ca5756724ed2fc749f4c6dd51b810 [2021-10-28 09:24:01,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:24:01,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:24:01,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:24:01,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:24:01,883 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:24:01,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-28 09:24:01,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/data/c3d1aff47/2e747a5f399e4c7f890773ee61b6c43d/FLAGddcb1d695 [2021-10-28 09:24:02,516 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:24:02,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2021-10-28 09:24:02,535 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/data/c3d1aff47/2e747a5f399e4c7f890773ee61b6c43d/FLAGddcb1d695 [2021-10-28 09:24:02,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/data/c3d1aff47/2e747a5f399e4c7f890773ee61b6c43d [2021-10-28 09:24:02,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:24:02,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:24:02,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:24:02,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:24:02,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:24:02,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:24:02" (1/1) ... [2021-10-28 09:24:02,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c1caea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:02, skipping insertion in model container [2021-10-28 09:24:02,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:24:02" (1/1) ... [2021-10-28 09:24:02,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:24:02,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:24:03,097 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_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2021-10-28 09:24:03,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:24:03,170 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:24:03,197 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_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c[5608,5621] [2021-10-28 09:24:03,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:24:03,264 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:24:03,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03 WrapperNode [2021-10-28 09:24:03,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:24:03,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:24:03,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:24:03,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:24:03,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:24:03,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:24:03,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:24:03,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:24:03,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:24:03,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:24:03,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:24:03,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:24:03,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (1/1) ... [2021-10-28 09:24:03,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:24:03,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:24:03,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:24:03,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:24:03,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:24:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:24:03,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:24:03,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:24:04,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:24:04,529 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-28 09:24:04,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:04 BoogieIcfgContainer [2021-10-28 09:24:04,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:24:04,534 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:24:04,534 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:24:04,540 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:24:04,541 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:04,541 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:24:02" (1/3) ... [2021-10-28 09:24:04,543 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331faae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:24:04, skipping insertion in model container [2021-10-28 09:24:04,543 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:04,543 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:24:03" (2/3) ... [2021-10-28 09:24:04,544 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@331faae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:24:04, skipping insertion in model container [2021-10-28 09:24:04,544 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:24:04,544 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:04" (3/3) ... [2021-10-28 09:24:04,546 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2021-10-28 09:24:04,605 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:24:04,605 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:24:04,605 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:24:04,605 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:24:04,605 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:24:04,606 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:24:04,606 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:24:04,606 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:24:04,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 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) [2021-10-28 09:24:04,649 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-28 09:24:04,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:04,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:04,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,658 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:24:04,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 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) [2021-10-28 09:24:04,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-28 09:24:04,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:04,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:04,673 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,673 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:04,679 INFO L791 eck$LassoCheckResult]: Stem: 62#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #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(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 50#L-1true havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 11#L386true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 15#L394true main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 47#L936true assume 0 != main_~tmp~8; 58#L913true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 51#L333-1true [2021-10-28 09:24:04,680 INFO L793 eck$LassoCheckResult]: Loop: 51#L333-1true assume !false; 43#L66true assume test_~splverifierCounter~0 < 4; 60#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 74#L75true assume !(0 != test_~tmp~0); 27#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 46#L85true assume !(0 != test_~tmp___0~0); 63#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 19#L95true assume 0 != test_~tmp___2~0; 20#L101-1true assume !(0 != ~pumpRunning~0); 78#L138true assume !(0 != ~systemActive~0); 71#L145true havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 38#L808true __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 18#L327true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 51#L333-1true [2021-10-28 09:24:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:04,686 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 09:24:04,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:04,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123366725] [2021-10-28 09:24:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:04,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,086 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:05,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:05,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1673095042, now seen corresponding path program 1 times [2021-10-28 09:24:05,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:05,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199181261] [2021-10-28 09:24:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:05,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,290 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:05,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 41183896, now seen corresponding path program 1 times [2021-10-28 09:24:05,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:05,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744596337] [2021-10-28 09:24:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:05,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:05,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:05,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:05,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744596337] [2021-10-28 09:24:05,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744596337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:05,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:05,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:24:05,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194488644] [2021-10-28 09:24:05,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:05,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:24:05,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:24:05,693 INFO L87 Difference]: Start difference. First operand has 80 states, 79 states have (on average 1.518987341772152) internal successors, (120), 79 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 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-28 09:24:05,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:05,990 INFO L93 Difference]: Finished difference Result 210 states and 291 transitions. [2021-10-28 09:24:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:24:05,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 291 transitions. [2021-10-28 09:24:06,009 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 133 [2021-10-28 09:24:06,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 189 states and 270 transitions. [2021-10-28 09:24:06,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2021-10-28 09:24:06,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2021-10-28 09:24:06,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 270 transitions. [2021-10-28 09:24:06,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:06,024 INFO L681 BuchiCegarLoop]: Abstraction has 189 states and 270 transitions. [2021-10-28 09:24:06,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 270 transitions. [2021-10-28 09:24:06,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2021-10-28 09:24:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.425) internal successors, (171), 119 states have internal predecessors, (171), 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) [2021-10-28 09:24:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2021-10-28 09:24:06,064 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-28 09:24:06,064 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-28 09:24:06,064 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:24:06,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2021-10-28 09:24:06,067 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-10-28 09:24:06,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:06,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:06,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,069 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,069 INFO L791 eck$LassoCheckResult]: Stem: 373#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #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(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 368#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 324#L386 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 325#L394 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 328#L936 assume 0 != main_~tmp~8; 365#L913 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 317#L333-1 [2021-10-28 09:24:06,070 INFO L793 eck$LassoCheckResult]: Loop: 317#L333-1 assume !false; 358#L66 assume test_~splverifierCounter~0 < 4; 359#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 372#L75 assume !(0 != test_~tmp~0); 321#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 344#L85 assume !(0 != test_~tmp___0~0); 315#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 333#L95 assume 0 != test_~tmp___2~0; 334#L101-1 assume !(0 != ~pumpRunning~0); 337#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 381#L170 assume !(0 != ~pumpRunning~0); 380#L145 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 355#L808 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 331#L327 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 317#L333-1 [2021-10-28 09:24:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 09:24:06,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111612499] [2021-10-28 09:24:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,120 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,180 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash -353331282, now seen corresponding path program 1 times [2021-10-28 09:24:06,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58478934] [2021-10-28 09:24:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,188 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,195 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:06,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1249708244, now seen corresponding path program 1 times [2021-10-28 09:24:06,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847118478] [2021-10-28 09:24:06,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:24:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:24:06,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:24:06,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847118478] [2021-10-28 09:24:06,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847118478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:24:06,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:24:06,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:24:06,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634447686] [2021-10-28 09:24:06,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:24:06,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:24:06,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:24:06,392 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-28 09:24:06,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:24:06,519 INFO L93 Difference]: Finished difference Result 397 states and 578 transitions. [2021-10-28 09:24:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:24:06,520 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 578 transitions. [2021-10-28 09:24:06,532 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 294 [2021-10-28 09:24:06,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 578 transitions. [2021-10-28 09:24:06,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2021-10-28 09:24:06,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2021-10-28 09:24:06,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 578 transitions. [2021-10-28 09:24:06,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:24:06,552 INFO L681 BuchiCegarLoop]: Abstraction has 397 states and 578 transitions. [2021-10-28 09:24:06,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 578 transitions. [2021-10-28 09:24:06,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 234. [2021-10-28 09:24:06,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 234 states have (on average 1.4017094017094016) internal successors, (328), 233 states have internal predecessors, (328), 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) [2021-10-28 09:24:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 328 transitions. [2021-10-28 09:24:06,590 INFO L704 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2021-10-28 09:24:06,590 INFO L587 BuchiCegarLoop]: Abstraction has 234 states and 328 transitions. [2021-10-28 09:24:06,590 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:24:06,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 328 transitions. [2021-10-28 09:24:06,593 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 168 [2021-10-28 09:24:06,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:24:06,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:24:06,595 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,595 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:24:06,595 INFO L791 eck$LassoCheckResult]: Stem: 922#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(13);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string73.base, #t~string73.offset, 1);call write~init~int(77, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(101, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(116, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(104, #t~string73.base, 4 + #t~string73.offset, 1);call write~init~int(58, #t~string73.base, 5 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 6 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string75.base, #t~string75.offset, 1);call write~init~int(82, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(73, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(84, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 4 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string77.base, #t~string77.offset, 1);call write~init~int(75, #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(41, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 913#L-1 havoc main_#res;havoc main_#t~ret80, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 857#L386 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 858#L394 main_#t~ret80 := valid_product_#res;main_~tmp~8 := main_#t~ret80;havoc main_#t~ret80; 863#L936 assume 0 != main_~tmp~8; 909#L913 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 918#L333-1 [2021-10-28 09:24:06,595 INFO L793 eck$LassoCheckResult]: Loop: 918#L333-1 assume !false; 1051#L66 assume test_~splverifierCounter~0 < 4; 1052#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 1058#L75 assume !(0 != test_~tmp~0); 1056#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 1055#L85 assume !(0 != test_~tmp___0~0); 1047#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 1045#L95 assume 0 != test_~tmp___2~0; 871#L101-1 assume !(0 != ~pumpRunning~0); 873#L138 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 939#L170 assume !(0 != ~pumpRunning~0); 1053#L145 havoc __utac_acc__Specification3_spec__1_#t~ret31, __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 895#L808 __utac_acc__Specification3_spec__1_#t~ret31 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret31;havoc __utac_acc__Specification3_spec__1_#t~ret31; 896#L327 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 904#L840 __utac_acc__Specification3_spec__1_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 905#L333 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 918#L333-1 [2021-10-28 09:24:06,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 09:24:06,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565417002] [2021-10-28 09:24:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,762 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,763 INFO L85 PathProgramCache]: Analyzing trace with hash -248939424, now seen corresponding path program 1 times [2021-10-28 09:24:06,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694231808] [2021-10-28 09:24:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,769 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:24:06,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:24:06,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1621214202, now seen corresponding path program 1 times [2021-10-28 09:24:06,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:24:06,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764271653] [2021-10-28 09:24:06,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:24:06,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:24:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,823 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:24:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:24:06,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:25:09,677 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 09:26:22,584 WARN L207 SmtUtils]: Spent 35.61 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 09:26:22,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:26:22 BoogieIcfgContainer [2021-10-28 09:26:22,726 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:26:22,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:26:22,727 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:26:22,727 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:26:22,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:24:04" (3/4) ... [2021-10-28 09:26:22,730 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:26:22,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:26:22,795 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:26:22,796 INFO L168 Benchmark]: Toolchain (without parser) took 139985.58 ms. Allocated memory was 96.5 MB in the beginning and 153.1 MB in the end (delta: 56.6 MB). Free memory was 60.5 MB in the beginning and 36.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 80.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,797 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:26:22,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.68 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 63.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.43 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 60.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,808 INFO L168 Benchmark]: Boogie Preprocessor took 59.66 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,808 INFO L168 Benchmark]: RCFGBuilder took 1123.56 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.7 MB in the beginning and 76.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,809 INFO L168 Benchmark]: BuchiAutomizer took 138192.22 ms. Allocated memory was 117.4 MB in the beginning and 153.1 MB in the end (delta: 35.7 MB). Free memory was 76.3 MB in the beginning and 38.7 MB in the end (delta: 37.6 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,811 INFO L168 Benchmark]: Witness Printer took 69.04 ms. Allocated memory is still 153.1 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:26:22,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 66.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.68 ms. Allocated memory is still 96.5 MB. Free memory was 60.2 MB in the beginning and 63.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.43 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 60.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.66 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1123.56 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 58.7 MB in the beginning and 76.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138192.22 ms. Allocated memory was 117.4 MB in the beginning and 153.1 MB in the end (delta: 35.7 MB). Free memory was 76.3 MB in the beginning and 38.7 MB in the end (delta: 37.6 MB). Peak memory consumption was 76.9 MB. Max. memory is 16.1 GB. * Witness Printer took 69.04 ms. Allocated memory is still 153.1 MB. Free memory was 38.7 MB in the beginning and 36.6 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 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 137.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 232 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 255 SDtfs, 799 SDslu, 1021 SDs, 0 SdLazy, 85 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 65]: 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=17701, NULL=0, NULL=0, NULL=0, NULL=17691, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55d62ad5=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a77608c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65eb7eb3=0, NULL=1, NULL=17718, NULL=17716, NULL=17704, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17a8bf56=0, NULL=17696, NULL=17692, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf427e3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a3d561=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@312c05ec=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17a6d0ee=0, NULL=0, NULL=0, tmp___1=0, NULL=17715, NULL=17710, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=17695, tmp=0, NULL=17699, NULL=17702, tmp___0=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=17703, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@517676ec=0, retValue_acc=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=17711, \result=1, head=0, pumpRunning=0, NULL=17705, \result=0, NULL=17698, NULL=0, NULL=17708, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=17717, NULL=0, NULL=0, NULL=0, NULL=17707, NULL=17706, NULL=0, retValue_acc=1, NULL=17709, tmp___2=60, NULL=0, splverifierCounter=0, NULL=0, \result=0, NULL=17713, NULL=17700, tmp=0, tmp___1=0, head=0, NULL=17694, NULL=17712, NULL=17697, NULL=17693, NULL=17714} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L568] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L765] int waterLevel = 1; [L766] int methaneLevelCritical = 0; [L854] int cleanupTimeShifts = 4; [L927] int retValue_acc ; [L928] int tmp ; [L390] int retValue_acc ; [L393] retValue_acc = 1 [L394] return (retValue_acc); [L934] tmp = valid_product() [L936] COND TRUE \read(tmp) [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L138] COND FALSE !(\read(pumpRunning)) [L145] COND TRUE \read(systemActive) [L167] int tmp ; [L170] COND FALSE !(\read(pumpRunning)) [L319] int tmp ; [L320] int tmp___0 ; [L321] int tmp___1 ; [L804] int retValue_acc ; [L807] retValue_acc = methaneLevelCritical [L808] return (retValue_acc); [L325] tmp = isMethaneLevelCritical() [L327] COND FALSE !(\read(tmp)) [L836] int retValue_acc ; [L839] retValue_acc = waterLevel [L840] return (retValue_acc); [L331] tmp___0 = getWaterLevel() [L333] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:26:22,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b2fa0b3-759a-4377-9fa6-8e2e2e2ea064/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...