./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:04:46,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:04:46,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:04:46,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:04:46,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:04:46,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:04:46,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:04:46,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:04:46,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:04:46,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:04:46,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:04:46,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:04:46,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:04:46,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:04:46,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:04:46,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:04:46,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:04:46,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:04:46,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:04:46,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:04:46,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:04:46,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:04:46,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:04:46,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:04:46,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:04:46,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:04:46,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:04:46,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:04:46,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:04:46,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:04:46,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:04:46,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:04:46,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:04:46,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:04:46,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:04:46,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:04:46,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:04:46,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:04:46,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:04:46,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:04:46,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:04:46,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:04:46,369 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:04:46,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:04:46,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:04:46,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:04:46,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:04:46,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:04:46,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:04:46,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:04:46,371 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:04:46,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:04:46,372 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:04:46,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:04:46,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:04:46,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:04:46,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:04:46,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:04:46,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:04:46,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:04:46,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:04:46,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:04:46,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:04:46,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:04:46,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:04:46,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:04:46,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:04:46,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:04:46,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:04:46,376 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:04:46,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:04:46,376 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:04:46,377 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4583285deb29d8014ded34089a46614a743cea13eee9bbb990cdfd770bfce36e [2022-12-13 14:04:46,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:04:46,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:04:46,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:04:46,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:04:46,575 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:04:46,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2022-12-13 14:04:49,275 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:04:49,491 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:04:49,491 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2022-12-13 14:04:49,506 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/data/8963bc2c2/f0bb12eb6b104be899b6cd830daf05a1/FLAG16992c54f [2022-12-13 14:04:49,519 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/data/8963bc2c2/f0bb12eb6b104be899b6cd830daf05a1 [2022-12-13 14:04:49,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:04:49,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:04:49,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:04:49,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:04:49,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:04:49,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13cfd099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49, skipping insertion in model container [2022-12-13 14:04:49,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:04:49,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:04:49,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2022-12-13 14:04:49,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:04:49,817 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:04:49,878 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c[19177,19190] [2022-12-13 14:04:49,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:04:49,897 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:04:49,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49 WrapperNode [2022-12-13 14:04:49,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:04:49,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:04:49,899 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:04:49,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:04:49,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,944 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 209 [2022-12-13 14:04:49,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:04:49,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:04:49,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:04:49,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:04:49,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:04:49,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:04:49,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:04:49,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:04:49,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (1/1) ... [2022-12-13 14:04:49,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:04:49,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:04:49,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:04:49,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:04:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:04:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 14:04:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 14:04:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 14:04:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:04:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 14:04:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 14:04:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:04:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:04:50,091 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:04:50,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:04:50,316 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:04:50,324 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:04:50,324 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:04:50,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:04:50 BoogieIcfgContainer [2022-12-13 14:04:50,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:04:50,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:04:50,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:04:50,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:04:50,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:04:49" (1/3) ... [2022-12-13 14:04:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dde94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:04:50, skipping insertion in model container [2022-12-13 14:04:50,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:04:49" (2/3) ... [2022-12-13 14:04:50,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dde94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:04:50, skipping insertion in model container [2022-12-13 14:04:50,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:04:50" (3/3) ... [2022-12-13 14:04:50,336 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2022-12-13 14:04:50,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:04:50,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:04:50,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:04:50,399 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2b4b2e7f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:04:50,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:04:50,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-13 14:04:50,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 14:04:50,414 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:50,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:50,415 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:50,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:50,420 INFO L85 PathProgramCache]: Analyzing trace with hash -656399671, now seen corresponding path program 1 times [2022-12-13 14:04:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:50,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790013174] [2022-12-13 14:04:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 14:04:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:50,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:50,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790013174] [2022-12-13 14:04:50,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790013174] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:50,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:50,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:04:50,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394848926] [2022-12-13 14:04:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:50,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:04:50,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:50,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:04:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:04:50,655 INFO L87 Difference]: Start difference. First operand has 96 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 82 states have internal predecessors, (101), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:50,689 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2022-12-13 14:04:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:04:50,691 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-12-13 14:04:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:50,700 INFO L225 Difference]: With dead ends: 183 [2022-12-13 14:04:50,700 INFO L226 Difference]: Without dead ends: 87 [2022-12-13 14:04:50,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:04:50,708 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:50,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-13 14:04:50,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-12-13 14:04:50,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 74 states have internal predecessors, (87), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-13 14:04:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2022-12-13 14:04:50,748 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2022-12-13 14:04:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:50,748 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-12-13 14:04:50,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2022-12-13 14:04:50,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 14:04:50,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:50,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:50,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:04:50,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1991216904, now seen corresponding path program 1 times [2022-12-13 14:04:50,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:50,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951485097] [2022-12-13 14:04:50,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:50,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 14:04:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:50,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:50,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:50,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951485097] [2022-12-13 14:04:50,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951485097] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:50,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:50,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:04:50,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625702441] [2022-12-13 14:04:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:50,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:04:50,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:50,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:04:50,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:04:50,855 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:50,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:50,870 INFO L93 Difference]: Finished difference Result 134 states and 172 transitions. [2022-12-13 14:04:50,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:04:50,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-12-13 14:04:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:50,871 INFO L225 Difference]: With dead ends: 134 [2022-12-13 14:04:50,871 INFO L226 Difference]: Without dead ends: 78 [2022-12-13 14:04:50,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:04:50,873 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:50,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-13 14:04:50,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-12-13 14:04:50,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 68 states have internal predecessors, (80), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 14:04:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2022-12-13 14:04:50,883 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2022-12-13 14:04:50,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:50,884 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2022-12-13 14:04:50,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2022-12-13 14:04:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-13 14:04:50,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:50,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:50,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:04:50,886 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:50,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1985117727, now seen corresponding path program 1 times [2022-12-13 14:04:50,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:50,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13097856] [2022-12-13 14:04:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:51,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:51,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13097856] [2022-12-13 14:04:51,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13097856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:51,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:51,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:04:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485792549] [2022-12-13 14:04:51,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:51,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:51,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:51,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:04:51,010 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:51,092 INFO L93 Difference]: Finished difference Result 191 states and 249 transitions. [2022-12-13 14:04:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:04:51,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-12-13 14:04:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:51,094 INFO L225 Difference]: With dead ends: 191 [2022-12-13 14:04:51,094 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 14:04:51,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:04:51,096 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 165 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:51,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 342 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 14:04:51,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2022-12-13 14:04:51,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 101 states have internal predecessors, (122), 15 states have call successors, (15), 12 states have call predecessors, (15), 12 states have return successors, (16), 11 states have call predecessors, (16), 15 states have call successors, (16) [2022-12-13 14:04:51,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 153 transitions. [2022-12-13 14:04:51,115 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 153 transitions. Word has length 31 [2022-12-13 14:04:51,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:51,116 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 153 transitions. [2022-12-13 14:04:51,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:51,116 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 153 transitions. [2022-12-13 14:04:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 14:04:51,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:51,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:51,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:04:51,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:51,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1980394589, now seen corresponding path program 1 times [2022-12-13 14:04:51,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:51,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529067420] [2022-12-13 14:04:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:04:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:51,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:51,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529067420] [2022-12-13 14:04:51,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529067420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:51,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:51,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:04:51,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595278271] [2022-12-13 14:04:51,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:51,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:51,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:51,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:51,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:04:51,205 INFO L87 Difference]: Start difference. First operand 118 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:51,263 INFO L93 Difference]: Finished difference Result 272 states and 364 transitions. [2022-12-13 14:04:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:04:51,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-12-13 14:04:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:51,264 INFO L225 Difference]: With dead ends: 272 [2022-12-13 14:04:51,264 INFO L226 Difference]: Without dead ends: 162 [2022-12-13 14:04:51,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:04:51,266 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 78 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:51,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 381 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:51,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-12-13 14:04:51,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 152. [2022-12-13 14:04:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 116 states have (on average 1.293103448275862) internal successors, (150), 126 states have internal predecessors, (150), 18 states have call successors, (18), 17 states have call predecessors, (18), 17 states have return successors, (24), 17 states have call predecessors, (24), 18 states have call successors, (24) [2022-12-13 14:04:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 192 transitions. [2022-12-13 14:04:51,280 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 192 transitions. Word has length 34 [2022-12-13 14:04:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:51,280 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 192 transitions. [2022-12-13 14:04:51,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 14:04:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 192 transitions. [2022-12-13 14:04:51,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 14:04:51,282 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:51,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:51,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:04:51,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:51,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:51,282 INFO L85 PathProgramCache]: Analyzing trace with hash -316583003, now seen corresponding path program 1 times [2022-12-13 14:04:51,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:51,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237394247] [2022-12-13 14:04:51,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:51,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 14:04:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:51,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:51,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237394247] [2022-12-13 14:04:51,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237394247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:51,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:51,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:04:51,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098472631] [2022-12-13 14:04:51,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:51,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:04:51,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:51,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:04:51,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:04:51,370 INFO L87 Difference]: Start difference. First operand 152 states and 192 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:51,494 INFO L93 Difference]: Finished difference Result 327 states and 420 transitions. [2022-12-13 14:04:51,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:04:51,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-12-13 14:04:51,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:51,496 INFO L225 Difference]: With dead ends: 327 [2022-12-13 14:04:51,496 INFO L226 Difference]: Without dead ends: 183 [2022-12-13 14:04:51,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-13 14:04:51,499 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 65 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:51,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 365 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:04:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-12-13 14:04:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 178. [2022-12-13 14:04:51,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 137 states have (on average 1.2773722627737227) internal successors, (175), 147 states have internal predecessors, (175), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (29), 21 states have call predecessors, (29), 20 states have call successors, (29) [2022-12-13 14:04:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 224 transitions. [2022-12-13 14:04:51,523 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 224 transitions. Word has length 45 [2022-12-13 14:04:51,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:51,523 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 224 transitions. [2022-12-13 14:04:51,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:51,524 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 224 transitions. [2022-12-13 14:04:51,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 14:04:51,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:51,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:51,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:04:51,526 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:51,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:51,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2005526745, now seen corresponding path program 1 times [2022-12-13 14:04:51,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:51,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766915957] [2022-12-13 14:04:51,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:51,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 14:04:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:51,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766915957] [2022-12-13 14:04:51,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766915957] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:51,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:51,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:04:51,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49963416] [2022-12-13 14:04:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:51,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:51,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:04:51,610 INFO L87 Difference]: Start difference. First operand 178 states and 224 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:51,706 INFO L93 Difference]: Finished difference Result 358 states and 462 transitions. [2022-12-13 14:04:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:04:51,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-12-13 14:04:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:51,708 INFO L225 Difference]: With dead ends: 358 [2022-12-13 14:04:51,708 INFO L226 Difference]: Without dead ends: 188 [2022-12-13 14:04:51,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:04:51,710 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 66 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:51,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 287 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:04:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-12-13 14:04:51,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 180. [2022-12-13 14:04:51,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 139 states have (on average 1.2733812949640289) internal successors, (177), 149 states have internal predecessors, (177), 20 states have call successors, (20), 17 states have call predecessors, (20), 20 states have return successors, (29), 21 states have call predecessors, (29), 20 states have call successors, (29) [2022-12-13 14:04:51,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 226 transitions. [2022-12-13 14:04:51,731 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 226 transitions. Word has length 45 [2022-12-13 14:04:51,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:51,732 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 226 transitions. [2022-12-13 14:04:51,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:51,732 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 226 transitions. [2022-12-13 14:04:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 14:04:51,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:51,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:51,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:04:51,734 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:51,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1582824919, now seen corresponding path program 1 times [2022-12-13 14:04:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:51,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275961386] [2022-12-13 14:04:51,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:51,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 14:04:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:51,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:51,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:51,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275961386] [2022-12-13 14:04:51,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275961386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:51,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:51,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:04:51,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290253153] [2022-12-13 14:04:51,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:51,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:51,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:51,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:51,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:04:51,803 INFO L87 Difference]: Start difference. First operand 180 states and 226 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:51,988 INFO L93 Difference]: Finished difference Result 545 states and 714 transitions. [2022-12-13 14:04:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:04:51,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2022-12-13 14:04:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:51,990 INFO L225 Difference]: With dead ends: 545 [2022-12-13 14:04:51,990 INFO L226 Difference]: Without dead ends: 373 [2022-12-13 14:04:51,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:04:51,991 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 215 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:51,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 318 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:04:51,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-12-13 14:04:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 371. [2022-12-13 14:04:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 284 states have (on average 1.25) internal successors, (355), 302 states have internal predecessors, (355), 44 states have call successors, (44), 42 states have call predecessors, (44), 42 states have return successors, (70), 43 states have call predecessors, (70), 44 states have call successors, (70) [2022-12-13 14:04:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 469 transitions. [2022-12-13 14:04:52,035 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 469 transitions. Word has length 45 [2022-12-13 14:04:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:52,036 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 469 transitions. [2022-12-13 14:04:52,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 14:04:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 469 transitions. [2022-12-13 14:04:52,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-13 14:04:52,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:52,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:52,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:04:52,038 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:52,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:52,039 INFO L85 PathProgramCache]: Analyzing trace with hash 929828559, now seen corresponding path program 1 times [2022-12-13 14:04:52,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:52,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652854313] [2022-12-13 14:04:52,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:52,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:04:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-12-13 14:04:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-12-13 14:04:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:52,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:52,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652854313] [2022-12-13 14:04:52,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652854313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:52,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:52,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:04:52,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532865167] [2022-12-13 14:04:52,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:52,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:52,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:52,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:52,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:04:52,095 INFO L87 Difference]: Start difference. First operand 371 states and 469 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:04:52,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:52,361 INFO L93 Difference]: Finished difference Result 690 states and 918 transitions. [2022-12-13 14:04:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 14:04:52,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2022-12-13 14:04:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:52,366 INFO L225 Difference]: With dead ends: 690 [2022-12-13 14:04:52,366 INFO L226 Difference]: Without dead ends: 688 [2022-12-13 14:04:52,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:04:52,367 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 302 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:52,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 241 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 14:04:52,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-12-13 14:04:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 606. [2022-12-13 14:04:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 463 states have (on average 1.2548596112311015) internal successors, (581), 498 states have internal predecessors, (581), 75 states have call successors, (75), 60 states have call predecessors, (75), 67 states have return successors, (161), 70 states have call predecessors, (161), 75 states have call successors, (161) [2022-12-13 14:04:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 817 transitions. [2022-12-13 14:04:52,416 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 817 transitions. Word has length 49 [2022-12-13 14:04:52,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:52,417 INFO L495 AbstractCegarLoop]: Abstraction has 606 states and 817 transitions. [2022-12-13 14:04:52,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 14:04:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 817 transitions. [2022-12-13 14:04:52,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-12-13 14:04:52,418 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:52,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:52,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:04:52,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:52,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1198485224, now seen corresponding path program 1 times [2022-12-13 14:04:52,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:52,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502922300] [2022-12-13 14:04:52,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:52,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:04:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:04:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 14:04:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 14:04:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 14:04:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,554 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 14:04:52,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:52,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502922300] [2022-12-13 14:04:52,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502922300] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:04:52,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301631096] [2022-12-13 14:04:52,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:52,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:04:52,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:04:52,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:04:52,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 14:04:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:52,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 14:04:52,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:04:52,716 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:52,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:04:52,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301631096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:52,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:04:52,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 9 [2022-12-13 14:04:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565034093] [2022-12-13 14:04:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:52,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:04:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:52,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:04:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:04:52,718 INFO L87 Difference]: Start difference. First operand 606 states and 817 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 14:04:52,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:52,778 INFO L93 Difference]: Finished difference Result 1084 states and 1484 transitions. [2022-12-13 14:04:52,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:04:52,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 88 [2022-12-13 14:04:52,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:52,781 INFO L225 Difference]: With dead ends: 1084 [2022-12-13 14:04:52,781 INFO L226 Difference]: Without dead ends: 570 [2022-12-13 14:04:52,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 14:04:52,783 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 42 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:52,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 209 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-12-13 14:04:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2022-12-13 14:04:52,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 435 states have (on average 1.2252873563218392) internal successors, (533), 466 states have internal predecessors, (533), 70 states have call successors, (70), 60 states have call predecessors, (70), 64 states have return successors, (114), 64 states have call predecessors, (114), 70 states have call successors, (114) [2022-12-13 14:04:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 717 transitions. [2022-12-13 14:04:52,816 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 717 transitions. Word has length 88 [2022-12-13 14:04:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:52,816 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 717 transitions. [2022-12-13 14:04:52,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 14:04:52,816 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 717 transitions. [2022-12-13 14:04:52,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 14:04:52,817 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:52,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:52,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 14:04:53,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:04:53,018 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:53,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:53,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1221172747, now seen corresponding path program 1 times [2022-12-13 14:04:53,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:53,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052148435] [2022-12-13 14:04:53,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:53,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:04:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:04:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 14:04:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:04:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:04:53,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:04:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 14:04:53,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:53,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052148435] [2022-12-13 14:04:53,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052148435] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:04:53,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529598986] [2022-12-13 14:04:53,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:53,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:04:53,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:04:53,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:04:53,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 14:04:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 14:04:53,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:04:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 14:04:53,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:04:53,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529598986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:53,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:04:53,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-12-13 14:04:53,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826965775] [2022-12-13 14:04:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:53,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:04:53,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:53,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:04:53,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-13 14:04:53,266 INFO L87 Difference]: Start difference. First operand 570 states and 717 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 14:04:53,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:53,342 INFO L93 Difference]: Finished difference Result 1084 states and 1392 transitions. [2022-12-13 14:04:53,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 14:04:53,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 91 [2022-12-13 14:04:53,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:53,346 INFO L225 Difference]: With dead ends: 1084 [2022-12-13 14:04:53,346 INFO L226 Difference]: Without dead ends: 606 [2022-12-13 14:04:53,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-12-13 14:04:53,348 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 33 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:53,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 404 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2022-12-13 14:04:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 582. [2022-12-13 14:04:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 447 states have (on average 1.2192393736017897) internal successors, (545), 478 states have internal predecessors, (545), 70 states have call successors, (70), 60 states have call predecessors, (70), 64 states have return successors, (114), 64 states have call predecessors, (114), 70 states have call successors, (114) [2022-12-13 14:04:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 729 transitions. [2022-12-13 14:04:53,397 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 729 transitions. Word has length 91 [2022-12-13 14:04:53,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:53,397 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 729 transitions. [2022-12-13 14:04:53,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 14:04:53,397 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 729 transitions. [2022-12-13 14:04:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 14:04:53,399 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:53,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:53,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 14:04:53,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 14:04:53,599 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:53,600 INFO L85 PathProgramCache]: Analyzing trace with hash -107728195, now seen corresponding path program 1 times [2022-12-13 14:04:53,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:53,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124765179] [2022-12-13 14:04:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:53,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:04:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 14:04:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:04:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 14:04:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 14:04:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:04:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 14:04:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:53,661 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 14:04:53,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:53,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124765179] [2022-12-13 14:04:53,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124765179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:53,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:04:53,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:04:53,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305265512] [2022-12-13 14:04:53,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:53,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:04:53,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:53,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:04:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:04:53,663 INFO L87 Difference]: Start difference. First operand 582 states and 729 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-13 14:04:53,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:53,901 INFO L93 Difference]: Finished difference Result 1117 states and 1402 transitions. [2022-12-13 14:04:53,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 14:04:53,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 94 [2022-12-13 14:04:53,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:53,906 INFO L225 Difference]: With dead ends: 1117 [2022-12-13 14:04:53,906 INFO L226 Difference]: Without dead ends: 543 [2022-12-13 14:04:53,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:04:53,909 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 319 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:53,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 299 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:04:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-12-13 14:04:53,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 507. [2022-12-13 14:04:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 391 states have (on average 1.2225063938618925) internal successors, (478), 418 states have internal predecessors, (478), 59 states have call successors, (59), 51 states have call predecessors, (59), 56 states have return successors, (85), 58 states have call predecessors, (85), 59 states have call successors, (85) [2022-12-13 14:04:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 622 transitions. [2022-12-13 14:04:53,952 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 622 transitions. Word has length 94 [2022-12-13 14:04:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:53,953 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 622 transitions. [2022-12-13 14:04:53,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-13 14:04:53,953 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 622 transitions. [2022-12-13 14:04:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-12-13 14:04:53,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:04:53,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:53,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 14:04:53,955 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:04:53,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:04:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1355186253, now seen corresponding path program 1 times [2022-12-13 14:04:53,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:04:53,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608509292] [2022-12-13 14:04:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:04:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 14:04:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 14:04:54,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 14:04:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 14:04:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 14:04:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:04:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 14:04:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 14:04:54,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:04:54,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608509292] [2022-12-13 14:04:54,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608509292] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 14:04:54,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853957079] [2022-12-13 14:04:54,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:04:54,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:04:54,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:04:54,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 14:04:54,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 14:04:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:04:54,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 14:04:54,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:04:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:04:54,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:04:54,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853957079] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:04:54,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 14:04:54,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-12-13 14:04:54,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105790839] [2022-12-13 14:04:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:04:54,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:04:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:04:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:04:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-13 14:04:54,235 INFO L87 Difference]: Start difference. First operand 507 states and 622 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 14:04:54,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:04:54,329 INFO L93 Difference]: Finished difference Result 823 states and 1018 transitions. [2022-12-13 14:04:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:04:54,330 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 91 [2022-12-13 14:04:54,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:04:54,330 INFO L225 Difference]: With dead ends: 823 [2022-12-13 14:04:54,331 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 14:04:54,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-12-13 14:04:54,333 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 136 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:04:54,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 492 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:04:54,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 14:04:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 14:04:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 14:04:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 14:04:54,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2022-12-13 14:04:54,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:04:54,335 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 14:04:54,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 14:04:54,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 14:04:54,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 14:04:54,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 14:04:54,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 14:04:54,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 14:04:54,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 14:04:56,938 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 229 236) no Hoare annotation was computed. [2022-12-13 14:04:56,938 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 229 236) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2022-12-13 14:04:56,938 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 229 236) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 162 168) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 162 168) the Hoare annotation is: true [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 558 569) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 558 569) the Hoare annotation is: true [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 558 569) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 570 578) the Hoare annotation is: true [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 570 578) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 570 578) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 356 385) no Hoare annotation was computed. [2022-12-13 14:04:56,939 INFO L902 garLoopResultBuilder]: At program point L381(lines 356 385) the Hoare annotation is: true [2022-12-13 14:04:56,939 INFO L899 garLoopResultBuilder]: For program point L377(line 377) no Hoare annotation was computed. [2022-12-13 14:04:56,940 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 374) no Hoare annotation was computed. [2022-12-13 14:04:56,940 INFO L902 garLoopResultBuilder]: At program point L370-1(lines 370 374) the Hoare annotation is: true [2022-12-13 14:04:56,940 INFO L899 garLoopResultBuilder]: For program point L367(line 367) no Hoare annotation was computed. [2022-12-13 14:04:56,940 INFO L902 garLoopResultBuilder]: At program point L366-2(lines 366 380) the Hoare annotation is: true [2022-12-13 14:04:56,940 INFO L902 garLoopResultBuilder]: At program point L362(line 362) the Hoare annotation is: true [2022-12-13 14:04:56,940 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 356 385) the Hoare annotation is: true [2022-12-13 14:04:56,940 INFO L899 garLoopResultBuilder]: For program point L362-1(line 362) no Hoare annotation was computed. [2022-12-13 14:04:56,940 INFO L895 garLoopResultBuilder]: At program point isLowWaterSensorDry_returnLabel#1(lines 625 633) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~systemActive~0)) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse4 .cse2 .cse5) (or .cse0 .cse3 .cse1) (or .cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) .cse2 .cse5))) [2022-12-13 14:04:56,940 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 138 161) no Hoare annotation was computed. [2022-12-13 14:04:56,940 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 325) no Hoare annotation was computed. [2022-12-13 14:04:56,941 INFO L899 garLoopResultBuilder]: For program point L321-2(lines 321 325) no Hoare annotation was computed. [2022-12-13 14:04:56,941 INFO L899 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2022-12-13 14:04:56,941 INFO L899 garLoopResultBuilder]: For program point L474(lines 474 491) no Hoare annotation was computed. [2022-12-13 14:04:56,941 INFO L895 garLoopResultBuilder]: At program point L474-1(lines 466 494) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (and .cse0 .cse1 .cse6))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 .cse1 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse4 (not (<= 1 |old(~waterLevel~0)|)) (not .cse2)) (or .cse3 (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse5 (not (= |old(~waterLevel~0)| 1))) (or .cse3 .cse5 .cse4 (< |old(~waterLevel~0)| 2) (and (<= 1 ~pumpRunning~0) .cse6))))) [2022-12-13 14:04:56,941 INFO L895 garLoopResultBuilder]: At program point L210(line 210) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-12-13 14:04:56,941 INFO L895 garLoopResultBuilder]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 .cse2 (not .cse0)) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse2))) [2022-12-13 14:04:56,942 INFO L899 garLoopResultBuilder]: For program point L479(lines 479 485) no Hoare annotation was computed. [2022-12-13 14:04:56,942 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3) .cse4) (or .cse0 (not (<= 1 |old(~waterLevel~0)|)) (not .cse5)) (or (and .cse2 .cse3 (= ~waterLevel~0 1)) .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse5 .cse4))) [2022-12-13 14:04:56,942 INFO L895 garLoopResultBuilder]: At program point L215-1(lines 196 220) the Hoare annotation is: (let ((.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (= ~pumpRunning~0 0))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse3 (not .cse1)) (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse2 (not (= |old(~methAndRunningLastTime~0)| 0)) (and (<= 1 ~pumpRunning~0) (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse4) .cse3 (and .cse0 .cse4 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)))))) [2022-12-13 14:04:56,942 INFO L899 garLoopResultBuilder]: For program point L149-1(lines 149 155) no Hoare annotation was computed. [2022-12-13 14:04:56,942 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 1001 1008) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-12-13 14:04:56,943 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 138 161) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (let ((.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and .cse7 .cse0 .cse1)) (.cse2 (= 0 ~systemActive~0))) (and (or (not (<= 1 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or (and .cse7 .cse1 (= ~waterLevel~0 1)) .cse4 .cse5 (not (= |old(~waterLevel~0)| 1))) (or .cse4 (not (<= 1 |old(~waterLevel~0)|)) .cse6 (not .cse2))))) [2022-12-13 14:04:56,943 INFO L895 garLoopResultBuilder]: At program point isLowWaterLevel_returnLabel#1(lines 312 330) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not .cse2)) (or (not (<= 1 |old(~pumpRunning~0)|)) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse1))) [2022-12-13 14:04:56,943 INFO L899 garLoopResultBuilder]: For program point L538(lines 538 542) no Hoare annotation was computed. [2022-12-13 14:04:56,943 INFO L895 garLoopResultBuilder]: At program point L538-2(lines 534 545) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) .cse1 .cse2) (or .cse3 .cse4 (not .cse1)) (or .cse5 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (or .cse3 .cse5 .cse4))) [2022-12-13 14:04:56,944 INFO L895 garLoopResultBuilder]: At program point L472(line 472) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse5 (and .cse0 .cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 (not (= |old(~methAndRunningLastTime~0)| 0)) (and (<= 1 ~pumpRunning~0) (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse3) .cse4 .cse5) (or .cse2 .cse4 .cse5 (not .cse1))))) [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point L472-1(line 472) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 141 160) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point L1005(line 1005) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 212) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 138 161) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 248 256) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse6 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (and .cse5 .cse6 .cse1 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 (not (= |old(~methAndRunningLastTime~0)| 0)) (and (<= 1 ~pumpRunning~0) (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse1) .cse2 .cse3) (or .cse0 .cse2 .cse3 (not .cse4)) (or (not (<= 1 |old(~pumpRunning~0)|)) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse5 .cse6 (= |timeShift_isLowWaterLevel_~tmp~4#1| 0) (<= 1 ~waterLevel~0)) .cse4 (not (<= 2 |old(~waterLevel~0)|)))))) [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2022-12-13 14:04:56,944 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 217) no Hoare annotation was computed. [2022-12-13 14:04:56,945 INFO L895 garLoopResultBuilder]: At program point startSystem_returnLabel#1(lines 346 353) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3))) [2022-12-13 14:04:56,945 INFO L895 garLoopResultBuilder]: At program point L337(line 337) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_valid_product_#res#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (= |ULTIMATE.start_main_~tmp~5#1| 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,945 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 418 428) the Hoare annotation is: true [2022-12-13 14:04:56,945 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 507 513) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,945 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 432 454) the Hoare annotation is: true [2022-12-13 14:04:56,945 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 14:04:56,945 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 14:04:56,945 INFO L902 garLoopResultBuilder]: At program point L119(lines 56 123) the Hoare annotation is: true [2022-12-13 14:04:56,945 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 92) no Hoare annotation was computed. [2022-12-13 14:04:56,945 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 86 92) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L895 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2022-12-13 14:04:56,946 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 410 416) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 449) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point L442-2(lines 442 449) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L895 garLoopResultBuilder]: At program point L116(lines 65 117) the Hoare annotation is: false [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point L335(lines 335 341) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point L335-1(lines 335 341) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 14:04:56,946 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 514 520) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,946 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 110) no Hoare annotation was computed. [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point L104-2(lines 96 111) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (<= 1 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1)) (.cse3 (= 0 ~systemActive~0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not .cse3)) (and .cse4 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse5 .cse2) (and .cse4 .cse0 .cse1 .cse5 .cse2 .cse3))) [2022-12-13 14:04:56,947 INFO L899 garLoopResultBuilder]: For program point L67(lines 66 115) no Hoare annotation was computed. [2022-12-13 14:04:56,947 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 111) no Hoare annotation was computed. [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point __utac_acc__Specification2_spec__1_returnLabel#1(lines 458 465) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point stopSystem_returnLabel#1(lines 331 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~5#1| 1) (= 0 ~systemActive~0)) [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point L113(lines 66 115) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~5#1| 1))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= 0 ~systemActive~0))) (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2))) [2022-12-13 14:04:56,947 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 82) no Hoare annotation was computed. [2022-12-13 14:04:56,947 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 521 529) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 72) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L895 garLoopResultBuilder]: At program point activatePump_returnLabel#1(lines 221 228) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 ~pumpRunning~0) (<= 2 ~waterLevel~0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-12-13 14:04:56,948 INFO L895 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L178(lines 178 186) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 191) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 306) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L899 garLoopResultBuilder]: For program point L302-2(lines 302 306) no Hoare annotation was computed. [2022-12-13 14:04:56,948 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 170 194) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (< ~waterLevel~0 2) .cse2 .cse3))) [2022-12-13 14:04:56,948 INFO L895 garLoopResultBuilder]: At program point isHighWaterSensorDry_returnLabel#1(lines 611 624) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0))) [2022-12-13 14:04:56,949 INFO L895 garLoopResultBuilder]: At program point isHighWaterLevel_returnLabel#1(lines 293 311) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) (and .cse0 (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0)))) [2022-12-13 14:04:56,949 INFO L895 garLoopResultBuilder]: At program point L189(line 189) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (= ~methAndRunningLastTime~0 0))) [2022-12-13 14:04:56,949 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 170 194) no Hoare annotation was computed. [2022-12-13 14:04:56,949 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 170 194) no Hoare annotation was computed. [2022-12-13 14:04:56,949 INFO L899 garLoopResultBuilder]: For program point L615(lines 615 621) no Hoare annotation was computed. [2022-12-13 14:04:56,949 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 546 557) no Hoare annotation was computed. [2022-12-13 14:04:56,949 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 546 557) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1) .cse2) (or (not (<= 1 ~pumpRunning~0)) .cse1 (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-12-13 14:04:56,949 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 546 557) no Hoare annotation was computed. [2022-12-13 14:04:56,952 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:04:56,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:04:56,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:04:56 BoogieIcfgContainer [2022-12-13 14:04:56,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:04:56,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:04:56,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:04:56,971 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:04:56,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:04:50" (3/4) ... [2022-12-13 14:04:56,974 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-13 14:04:56,978 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-13 14:04:56,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-12-13 14:04:56,979 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-13 14:04:56,983 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-13 14:04:56,983 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 14:04:56,984 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 14:04:56,984 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:04:56,984 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 14:04:57,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-12-13 14:04:57,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-12-13 14:04:57,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2022-12-13 14:04:57,002 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) [2022-12-13 14:04:57,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 <= \old(pumpRunning)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) [2022-12-13 14:04:57,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) [2022-12-13 14:04:57,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) [2022-12-13 14:04:57,003 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || \old(waterLevel) < 2) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) [2022-12-13 14:04:57,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 0 == systemActive [2022-12-13 14:04:57,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || ((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-12-13 14:04:57,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && (((!(1 <= \old(pumpRunning)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-12-13 14:04:57,004 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (1 <= \result && pumpRunning == 0) [2022-12-13 14:04:57,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) [2022-12-13 14:04:57,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && ((!(1 <= \old(pumpRunning)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-12-13 14:04:57,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) [2022-12-13 14:04:57,005 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) [2022-12-13 14:04:57,020 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:04:57,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:04:57,021 INFO L158 Benchmark]: Toolchain (without parser) took 7498.11ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 115.2MB in the beginning and 69.7MB in the end (delta: 45.5MB). Peak memory consumption was 79.5MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,021 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:04:57,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.03ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 95.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.54ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,021 INFO L158 Benchmark]: Boogie Preprocessor took 18.22ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 92.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,022 INFO L158 Benchmark]: RCFGBuilder took 363.48ms. Allocated memory is still 148.9MB. Free memory was 92.3MB in the beginning and 75.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,022 INFO L158 Benchmark]: TraceAbstraction took 6640.77ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 74.7MB in the beginning and 74.9MB in the end (delta: -227.6kB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,022 INFO L158 Benchmark]: Witness Printer took 49.26ms. Allocated memory is still 180.4MB. Free memory was 74.9MB in the beginning and 69.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-13 14:04:57,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 148.9MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.03ms. Allocated memory is still 148.9MB. Free memory was 115.2MB in the beginning and 95.9MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.54ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 93.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.22ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 92.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.48ms. Allocated memory is still 148.9MB. Free memory was 92.3MB in the beginning and 75.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6640.77ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 74.7MB in the beginning and 74.9MB in the end (delta: -227.6kB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * Witness Printer took 49.26ms. Allocated memory is still 180.4MB. Free memory was 74.9MB in the beginning and 69.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1005]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1465 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1438 mSDsluCounter, 3635 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2305 mSDsCounter, 339 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 865 IncrementalHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 339 mSolverCounterUnsat, 1330 mSDtfsCounter, 865 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 365 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=606occurred in iteration=8, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 170 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1412 PreInvPairs, 1552 NumberOfFragments, 1427 HoareAnnotationTreeSize, 1412 FomulaSimplifications, 498 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 44 FomulaSimplificationsInter, 8521 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 934 NumberOfCodeBlocks, 934 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 919 ConstructedInterpolants, 0 QuantifiedInterpolants, 1496 SizeOfPredicates, 8 NumberOfNonLiveVariables, 977 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 204/211 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 0 == systemActive - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 346]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || ((((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 1001]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && ((!(1 <= \old(pumpRunning)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 507]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || (1 <= pumpRunning && 2 <= waterLevel)) || !(1 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: (((((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1)) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || \old(waterLevel) < 2) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 521]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((!(1 <= \old(pumpRunning)) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= \result) && tmp == 0) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= waterLevel) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: (((((!(1 <= \old(pumpRunning)) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) && (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || !(0 == systemActive))) && (((!(1 <= \old(pumpRunning)) || ((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) || (1 <= \result && pumpRunning == 0) - InvariantResult [Line: 625]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 <= \old(pumpRunning))) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 <= \old(waterLevel)))) && (((!(1 <= \old(pumpRunning)) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 14:04:57,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b33c8982-af40-4d61-a0db-97e7ba8611de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE