./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a --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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- 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-b5237d8 [2022-11-21 17:09:43,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:09:43,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:09:43,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:09:43,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:09:43,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:09:43,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:09:43,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:09:43,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:09:43,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:09:43,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:09:43,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:09:43,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:09:43,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:09:43,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:09:43,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:09:43,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:09:43,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:09:43,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:09:43,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:09:43,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:09:43,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:09:43,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:09:43,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:09:43,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:09:43,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:09:43,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:09:43,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:09:43,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:09:43,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:09:43,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:09:43,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:09:43,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:09:43,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:09:43,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:09:43,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:09:43,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:09:43,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:09:43,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:09:43,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:09:43,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:09:43,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:09:43,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:09:43,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:09:43,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:09:43,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:09:43,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:09:43,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:09:43,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:09:43,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:09:43,332 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:09:43,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:09:43,333 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:09:43,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:09:43,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:09:43,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:09:43,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:09:43,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:09:43,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:09:43,336 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:09:43,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:09:43,336 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:09:43,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:09:43,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:09:43,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:09:43,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:09:43,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:09:43,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:09:43,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:09:43,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:09:43,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:09:43,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:09:43,339 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:09:43,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:09:43,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:09:43,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2022-11-21 17:09:43,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:09:43,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:09:43,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:09:43,688 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:09:43,688 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:09:43,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-11-21 17:09:47,100 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:09:47,429 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:09:47,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-11-21 17:09:47,462 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/data/40e3d3847/8e75d30f339a4e488c5db79aa072d3c9/FLAGf3ef5eb8f [2022-11-21 17:09:47,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/data/40e3d3847/8e75d30f339a4e488c5db79aa072d3c9 [2022-11-21 17:09:47,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:09:47,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:09:47,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:09:47,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:09:47,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:09:47,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:09:47" (1/1) ... [2022-11-21 17:09:47,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed89fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:47, skipping insertion in model container [2022-11-21 17:09:47,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:09:47" (1/1) ... [2022-11-21 17:09:47,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:09:47,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:09:47,934 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_8fa55f97-5398-4516-9378-91c8f2cae5d9/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2022-11-21 17:09:47,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:09:47,970 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:09:48,032 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_8fa55f97-5398-4516-9378-91c8f2cae5d9/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2022-11-21 17:09:48,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:09:48,064 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:09:48,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48 WrapperNode [2022-11-21 17:09:48,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:09:48,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:09:48,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:09:48,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:09:48,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,116 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 173 [2022-11-21 17:09:48,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:09:48,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:09:48,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:09:48,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:09:48,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,143 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:09:48,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:09:48,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:09:48,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:09:48,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (1/1) ... [2022-11-21 17:09:48,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:09:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:09:48,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:09:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:09:48,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:09:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-21 17:09:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-21 17:09:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 17:09:48,302 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 17:09:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 17:09:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 17:09:48,306 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-21 17:09:48,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-21 17:09:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-21 17:09:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-21 17:09:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:09:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-21 17:09:48,308 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-21 17:09:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:09:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:09:48,438 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:09:48,440 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:09:48,777 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:09:48,793 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:09:48,797 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:09:48,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:09:48 BoogieIcfgContainer [2022-11-21 17:09:48,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:09:48,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:09:48,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:09:48,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:09:48,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:09:47" (1/3) ... [2022-11-21 17:09:48,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e263c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:09:48, skipping insertion in model container [2022-11-21 17:09:48,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:09:48" (2/3) ... [2022-11-21 17:09:48,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e263c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:09:48, skipping insertion in model container [2022-11-21 17:09:48,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:09:48" (3/3) ... [2022-11-21 17:09:48,810 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2022-11-21 17:09:48,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:09:48,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:09:48,896 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:09:48,904 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;@5f8d594a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:09:48,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:09:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-21 17:09:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 17:09:48,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:48,923 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] [2022-11-21 17:09:48,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:48,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:48,931 INFO L85 PathProgramCache]: Analyzing trace with hash 2051524167, now seen corresponding path program 1 times [2022-11-21 17:09:48,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368789109] [2022-11-21 17:09:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:48,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:09:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:49,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:49,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368789109] [2022-11-21 17:09:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368789109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:49,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:49,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:09:49,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134217180] [2022-11-21 17:09:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:49,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:09:49,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:49,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:09:49,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:09:49,255 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2022-11-21 17:09:49,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:49,313 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-11-21 17:09:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:09:49,315 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 [2022-11-21 17:09:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:49,326 INFO L225 Difference]: With dead ends: 144 [2022-11-21 17:09:49,326 INFO L226 Difference]: Without dead ends: 67 [2022-11-21 17:09:49,331 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 [2022-11-21 17:09:49,335 INFO L413 NwaCegarLoop]: 95 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, 95 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 [2022-11-21 17:09:49,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:49,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-21 17:09:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-21 17:09:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-21 17:09:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-11-21 17:09:49,398 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 25 [2022-11-21 17:09:49,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:49,399 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-11-21 17:09:49,399 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) [2022-11-21 17:09:49,399 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-11-21 17:09:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:09:49,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:49,402 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] [2022-11-21 17:09:49,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:09:49,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash -755812007, now seen corresponding path program 1 times [2022-11-21 17:09:49,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:49,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259090811] [2022-11-21 17:09:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:49,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-21 17:09:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:49,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:49,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259090811] [2022-11-21 17:09:49,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259090811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:49,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:49,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:09:49,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291432131] [2022-11-21 17:09:49,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:49,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:09:49,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:49,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:09:49,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:09:49,600 INFO L87 Difference]: Start difference. First operand 67 states and 86 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) [2022-11-21 17:09:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:49,621 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2022-11-21 17:09:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:09:49,622 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 [2022-11-21 17:09:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:49,624 INFO L225 Difference]: With dead ends: 100 [2022-11-21 17:09:49,624 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 17:09:49,625 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 [2022-11-21 17:09:49,626 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 12 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 130 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 [2022-11-21 17:09:49,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:49,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 17:09:49,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 17:09:49,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-21 17:09:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-11-21 17:09:49,639 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 26 [2022-11-21 17:09:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:49,639 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-11-21 17:09:49,639 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) [2022-11-21 17:09:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-11-21 17:09:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-21 17:09:49,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:49,641 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] [2022-11-21 17:09:49,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:09:49,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1418329719, now seen corresponding path program 1 times [2022-11-21 17:09:49,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:49,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288125696] [2022-11-21 17:09:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:49,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:09:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:49,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:49,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:49,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288125696] [2022-11-21 17:09:49,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288125696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:49,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:49,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:09:49,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682391148] [2022-11-21 17:09:49,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:49,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:09:49,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:49,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:09:49,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:09:49,919 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-21 17:09:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:50,039 INFO L93 Difference]: Finished difference Result 109 states and 142 transitions. [2022-11-21 17:09:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:09:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-11-21 17:09:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:50,042 INFO L225 Difference]: With dead ends: 109 [2022-11-21 17:09:50,042 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 17:09:50,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:09:50,044 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 100 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:50,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 151 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:09:50,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 17:09:50,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-21 17:09:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-21 17:09:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2022-11-21 17:09:50,073 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 30 [2022-11-21 17:09:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:50,074 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2022-11-21 17:09:50,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-11-21 17:09:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2022-11-21 17:09:50,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-21 17:09:50,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:50,076 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] [2022-11-21 17:09:50,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:09:50,077 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:50,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1398795374, now seen corresponding path program 1 times [2022-11-21 17:09:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:50,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434009067] [2022-11-21 17:09:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:50,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:09:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-21 17:09:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:50,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:50,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434009067] [2022-11-21 17:09:50,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434009067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:50,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:50,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:09:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837262157] [2022-11-21 17:09:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:50,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:09:50,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:09:50,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:09:50,256 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:09:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:50,302 INFO L93 Difference]: Finished difference Result 149 states and 192 transitions. [2022-11-21 17:09:50,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:09:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-21 17:09:50,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:50,305 INFO L225 Difference]: With dead ends: 149 [2022-11-21 17:09:50,305 INFO L226 Difference]: Without dead ends: 98 [2022-11-21 17:09:50,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:09:50,307 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 47 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:50,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 144 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:50,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-21 17:09:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2022-11-21 17:09:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.32) internal successors, (99), 81 states have internal predecessors, (99), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-21 17:09:50,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 121 transitions. [2022-11-21 17:09:50,328 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 121 transitions. Word has length 35 [2022-11-21 17:09:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:50,328 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 121 transitions. [2022-11-21 17:09:50,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:09:50,329 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 121 transitions. [2022-11-21 17:09:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-21 17:09:50,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:50,330 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] [2022-11-21 17:09:50,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:09:50,331 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:50,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2080139765, now seen corresponding path program 1 times [2022-11-21 17:09:50,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:50,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562440406] [2022-11-21 17:09:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 17:09:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:50,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:50,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562440406] [2022-11-21 17:09:50,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562440406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:50,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:50,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:09:50,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421382158] [2022-11-21 17:09:50,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:50,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:09:50,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:50,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:09:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:09:50,449 INFO L87 Difference]: Start difference. First operand 96 states and 121 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-11-21 17:09:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:50,533 INFO L93 Difference]: Finished difference Result 264 states and 348 transitions. [2022-11-21 17:09:50,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:09:50,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 39 [2022-11-21 17:09:50,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:50,538 INFO L225 Difference]: With dead ends: 264 [2022-11-21 17:09:50,538 INFO L226 Difference]: Without dead ends: 175 [2022-11-21 17:09:50,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:09:50,541 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:50,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 135 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:50,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-21 17:09:50,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-11-21 17:09:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 136 states have (on average 1.3161764705882353) internal successors, (179), 144 states have internal predecessors, (179), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2022-11-21 17:09:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 223 transitions. [2022-11-21 17:09:50,627 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 223 transitions. Word has length 39 [2022-11-21 17:09:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:50,628 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 223 transitions. [2022-11-21 17:09:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-11-21 17:09:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 223 transitions. [2022-11-21 17:09:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-21 17:09:50,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:50,635 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] [2022-11-21 17:09:50,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:09:50,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:50,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1262491315, now seen corresponding path program 1 times [2022-11-21 17:09:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:50,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726357857] [2022-11-21 17:09:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:50,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 17:09:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:50,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726357857] [2022-11-21 17:09:50,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726357857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:50,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:50,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:09:50,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342688794] [2022-11-21 17:09:50,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:50,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:09:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:09:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:50,795 INFO L87 Difference]: Start difference. First operand 173 states and 223 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-11-21 17:09:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:50,902 INFO L93 Difference]: Finished difference Result 375 states and 493 transitions. [2022-11-21 17:09:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:09:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 39 [2022-11-21 17:09:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:50,905 INFO L225 Difference]: With dead ends: 375 [2022-11-21 17:09:50,906 INFO L226 Difference]: Without dead ends: 209 [2022-11-21 17:09:50,910 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 [2022-11-21 17:09:50,919 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 62 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:50,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 331 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-21 17:09:50,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 179. [2022-11-21 17:09:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 150 states have internal predecessors, (185), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2022-11-21 17:09:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 229 transitions. [2022-11-21 17:09:50,964 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 229 transitions. Word has length 39 [2022-11-21 17:09:50,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:50,967 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 229 transitions. [2022-11-21 17:09:50,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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) [2022-11-21 17:09:50,968 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 229 transitions. [2022-11-21 17:09:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-21 17:09:50,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:50,973 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] [2022-11-21 17:09:50,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:09:50,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:50,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:50,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1038331275, now seen corresponding path program 1 times [2022-11-21 17:09:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:50,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244257091] [2022-11-21 17:09:50,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 17:09:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:51,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:51,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244257091] [2022-11-21 17:09:51,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244257091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:51,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:51,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:09:51,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211503851] [2022-11-21 17:09:51,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:51,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:09:51,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:51,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:09:51,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:09:51,098 INFO L87 Difference]: Start difference. First operand 179 states and 229 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-21 17:09:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:51,168 INFO L93 Difference]: Finished difference Result 334 states and 431 transitions. [2022-11-21 17:09:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:09:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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 39 [2022-11-21 17:09:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:51,172 INFO L225 Difference]: With dead ends: 334 [2022-11-21 17:09:51,173 INFO L226 Difference]: Without dead ends: 162 [2022-11-21 17:09:51,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:51,181 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 37 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:51,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 211 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:51,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-21 17:09:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2022-11-21 17:09:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 114 states have (on average 1.280701754385965) internal successors, (146), 121 states have internal predecessors, (146), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-21 17:09:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 178 transitions. [2022-11-21 17:09:51,221 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 178 transitions. Word has length 39 [2022-11-21 17:09:51,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:51,222 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 178 transitions. [2022-11-21 17:09:51,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-11-21 17:09:51,222 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 178 transitions. [2022-11-21 17:09:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-21 17:09:51,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:51,232 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] [2022-11-21 17:09:51,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:09:51,232 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1305949366, now seen corresponding path program 1 times [2022-11-21 17:09:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:51,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047688240] [2022-11-21 17:09:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 17:09:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 17:09:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:51,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:51,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047688240] [2022-11-21 17:09:51,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047688240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:51,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:51,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:09:51,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429514861] [2022-11-21 17:09:51,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:51,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:09:51,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:51,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:09:51,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:51,413 INFO L87 Difference]: Start difference. First operand 144 states and 178 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:09:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:51,498 INFO L93 Difference]: Finished difference Result 282 states and 350 transitions. [2022-11-21 17:09:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:09:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-21 17:09:51,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:51,504 INFO L225 Difference]: With dead ends: 282 [2022-11-21 17:09:51,504 INFO L226 Difference]: Without dead ends: 145 [2022-11-21 17:09:51,505 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 [2022-11-21 17:09:51,507 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 30 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:51,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 283 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:09:51,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-21 17:09:51,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2022-11-21 17:09:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 119 states have internal predecessors, (142), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-21 17:09:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2022-11-21 17:09:51,535 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 41 [2022-11-21 17:09:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:51,538 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2022-11-21 17:09:51,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:09:51,538 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2022-11-21 17:09:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-21 17:09:51,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:51,540 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] [2022-11-21 17:09:51,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:09:51,541 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:51,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1289793507, now seen corresponding path program 1 times [2022-11-21 17:09:51,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:51,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470929100] [2022-11-21 17:09:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:51,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:09:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:51,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:51,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470929100] [2022-11-21 17:09:51,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470929100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:51,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:51,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 17:09:51,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000218039] [2022-11-21 17:09:51,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:51,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:09:51,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:51,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:09:51,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:09:51,698 INFO L87 Difference]: Start difference. First operand 142 states and 174 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 17:09:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:52,075 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2022-11-21 17:09:52,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 17:09:52,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2022-11-21 17:09:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:52,082 INFO L225 Difference]: With dead ends: 265 [2022-11-21 17:09:52,083 INFO L226 Difference]: Without dead ends: 105 [2022-11-21 17:09:52,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-21 17:09:52,088 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 137 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:52,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 466 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:09:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-21 17:09:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2022-11-21 17:09:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 83 states have internal predecessors, (95), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-21 17:09:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 116 transitions. [2022-11-21 17:09:52,108 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 116 transitions. Word has length 43 [2022-11-21 17:09:52,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:52,108 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 116 transitions. [2022-11-21 17:09:52,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-21 17:09:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 116 transitions. [2022-11-21 17:09:52,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 17:09:52,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:52,110 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] [2022-11-21 17:09:52,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:09:52,110 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:52,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:52,111 INFO L85 PathProgramCache]: Analyzing trace with hash -168912990, now seen corresponding path program 1 times [2022-11-21 17:09:52,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:52,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508498180] [2022-11-21 17:09:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:52,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 17:09:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:09:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:52,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:52,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508498180] [2022-11-21 17:09:52,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508498180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:52,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:52,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:09:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459499265] [2022-11-21 17:09:52,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:52,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:09:52,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:52,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:09:52,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:09:52,190 INFO L87 Difference]: Start difference. First operand 99 states and 116 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:52,302 INFO L93 Difference]: Finished difference Result 168 states and 200 transitions. [2022-11-21 17:09:52,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:09:52,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-21 17:09:52,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:52,304 INFO L225 Difference]: With dead ends: 168 [2022-11-21 17:09:52,305 INFO L226 Difference]: Without dead ends: 117 [2022-11-21 17:09:52,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:09:52,306 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 75 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:52,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 190 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:09:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-21 17:09:52,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 99. [2022-11-21 17:09:52,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.205128205128205) internal successors, (94), 83 states have internal predecessors, (94), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-21 17:09:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2022-11-21 17:09:52,330 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 45 [2022-11-21 17:09:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:52,330 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2022-11-21 17:09:52,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2022-11-21 17:09:52,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 17:09:52,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:52,333 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] [2022-11-21 17:09:52,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:09:52,334 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:52,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:52,334 INFO L85 PathProgramCache]: Analyzing trace with hash -986561440, now seen corresponding path program 1 times [2022-11-21 17:09:52,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:52,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815396645] [2022-11-21 17:09:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:52,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 17:09:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:09:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:52,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:52,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815396645] [2022-11-21 17:09:52,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815396645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:52,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:52,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 17:09:52,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463174337] [2022-11-21 17:09:52,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:52,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:09:52,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:09:52,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:09:52,469 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:52,651 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2022-11-21 17:09:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:09:52,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-21 17:09:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:52,654 INFO L225 Difference]: With dead ends: 153 [2022-11-21 17:09:52,654 INFO L226 Difference]: Without dead ends: 97 [2022-11-21 17:09:52,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:09:52,656 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:52,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 274 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:09:52,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-21 17:09:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-21 17:09:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 81 states have internal predecessors, (91), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-21 17:09:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2022-11-21 17:09:52,675 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 45 [2022-11-21 17:09:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:52,676 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2022-11-21 17:09:52,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,676 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2022-11-21 17:09:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-21 17:09:52,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:09:52,677 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] [2022-11-21 17:09:52,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:09:52,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:09:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:09:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash -387767708, now seen corresponding path program 1 times [2022-11-21 17:09:52,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:09:52,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286979282] [2022-11-21 17:09:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:09:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:09:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:09:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-21 17:09:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 17:09:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:09:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:09:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:09:52,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286979282] [2022-11-21 17:09:52,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286979282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:09:52,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:09:52,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:09:52,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960642450] [2022-11-21 17:09:52,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:09:52,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:09:52,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:09:52,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:09:52,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:09:52,813 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:09:52,973 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2022-11-21 17:09:52,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:09:52,974 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-21 17:09:52,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:09:52,975 INFO L225 Difference]: With dead ends: 162 [2022-11-21 17:09:52,975 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:09:52,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:09:52,976 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 79 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:09:52,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 170 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:09:52,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:09:52,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:09:52,978 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) [2022-11-21 17:09:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:09:52,978 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-11-21 17:09:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:09:52,979 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:09:52,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:09:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:09:52,980 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:09:52,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:09:52,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:09:52,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:09:55,075 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 724 730) no Hoare annotation was computed. [2022-11-21 17:09:55,076 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 724 730) the Hoare annotation is: true [2022-11-21 17:09:55,076 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-21 17:09:55,076 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2022-11-21 17:09:55,076 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-21 17:09:55,076 INFO L899 garLoopResultBuilder]: For program point L704-1(lines 703 722) no Hoare annotation was computed. [2022-11-21 17:09:55,077 INFO L895 garLoopResultBuilder]: At program point L762(lines 757 764) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (and (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (= |old(~pumpRunning~0)| 0)))) [2022-11-21 17:09:55,077 INFO L895 garLoopResultBuilder]: At program point L746(line 746) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) (= |timeShift_isHighWaterLevel_~tmp~6#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2022-11-21 17:09:55,077 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 700 723) no Hoare annotation was computed. [2022-11-21 17:09:55,077 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 878) no Hoare annotation was computed. [2022-11-21 17:09:55,077 INFO L895 garLoopResultBuilder]: At program point L751(line 751) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-21 17:09:55,077 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-11-21 17:09:55,078 INFO L895 garLoopResultBuilder]: At program point L751-1(lines 732 756) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not .cse2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1))) (or .cse3 .cse1 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) .cse1 (and .cse3 .cse5)))))) [2022-11-21 17:09:55,078 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2022-11-21 17:09:55,078 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2022-11-21 17:09:55,078 INFO L899 garLoopResultBuilder]: For program point L838-2(lines 838 842) no Hoare annotation was computed. [2022-11-21 17:09:55,078 INFO L895 garLoopResultBuilder]: At program point L132(lines 127 135) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse4)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not .cse0))) (and (or (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse0 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1)) .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse3 .cse2 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 .cse2 (and (not (= 2 |timeShift_getWaterLevel_#res#1|)) (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) (and .cse3 .cse5)))))) [2022-11-21 17:09:55,078 INFO L895 garLoopResultBuilder]: At program point L789(lines 784 792) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (not (= ~pumpRunning~0 0)) (not (= |timeShift_isPumpRunning_#res#1| 0))) .cse0) (or .cse1 .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-21 17:09:55,079 INFO L895 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse0 (= |timeShift_isHighWaterSensorDry_#res#1| 1)) (.cse3 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) .cse3 (and .cse1 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse2))) (or .cse3 (= |old(~pumpRunning~0)| 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3))) [2022-11-21 17:09:55,079 INFO L895 garLoopResultBuilder]: At program point L624(lines 619 626) the Hoare annotation is: (not (= 1 ~systemActive~0)) [2022-11-21 17:09:55,079 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2022-11-21 17:09:55,079 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 748) no Hoare annotation was computed. [2022-11-21 17:09:55,080 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 874) no Hoare annotation was computed. [2022-11-21 17:09:55,080 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 753) no Hoare annotation was computed. [2022-11-21 17:09:55,080 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 877) no Hoare annotation was computed. [2022-11-21 17:09:55,080 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2022-11-21 17:09:55,081 INFO L895 garLoopResultBuilder]: At program point L864-1(lines 849 881) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse0 (not .cse6)) (.cse4 (not .cse3)) (.cse5 (not .cse1))) (and (or .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse1 .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) .cse3) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse5 .cse4 .cse6) (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse1 (not (= 2 ~waterLevel~0)) .cse2 .cse3 .cse7) .cse0 .cse4 (and .cse5 .cse7)))))) [2022-11-21 17:09:55,081 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-21 17:09:55,082 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not .cse2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1))) (or .cse3 .cse1 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) .cse1 (and .cse3 .cse5)))))) [2022-11-21 17:09:55,082 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2022-11-21 17:09:55,082 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 700 723) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (not .cse2) .cse3)) (or (not .cse1) (and .cse2 .cse3) .cse0))) [2022-11-21 17:09:55,082 INFO L895 garLoopResultBuilder]: At program point L844(lines 829 847) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse4)) (.cse2 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse1 (= |timeShift_isHighWaterLevel_#res#1| 0))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse1 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) .cse2)) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse3 (not (= 2 ~waterLevel~0)) .cse4 .cse5) (and .cse3 (not .cse2) .cse4 .cse5 (not .cse1))))))) [2022-11-21 17:09:55,083 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 700 723) no Hoare annotation was computed. [2022-11-21 17:09:55,083 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 623) no Hoare annotation was computed. [2022-11-21 17:09:55,083 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2022-11-21 17:09:55,083 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2022-11-21 17:09:55,083 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2022-11-21 17:09:55,084 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-21 17:09:55,084 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 153 182) the Hoare annotation is: true [2022-11-21 17:09:55,084 INFO L902 garLoopResultBuilder]: At program point L178(lines 153 182) the Hoare annotation is: true [2022-11-21 17:09:55,084 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-11-21 17:09:55,084 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2022-11-21 17:09:55,085 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2022-11-21 17:09:55,085 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-21 17:09:55,085 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-21 17:09:55,085 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2022-11-21 17:09:55,085 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-21 17:09:55,086 INFO L895 garLoopResultBuilder]: At program point L684(lines 637 685) the Hoare annotation is: false [2022-11-21 17:09:55,086 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:09:55,086 INFO L899 garLoopResultBuilder]: For program point L639(lines 638 683) no Hoare annotation was computed. [2022-11-21 17:09:55,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:09:55,086 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:09:55,087 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 679) no Hoare annotation was computed. [2022-11-21 17:09:55,087 INFO L895 garLoopResultBuilder]: At program point L660(line 660) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:09:55,087 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 246) no Hoare annotation was computed. [2022-11-21 17:09:55,091 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 246) no Hoare annotation was computed. [2022-11-21 17:09:55,091 INFO L895 garLoopResultBuilder]: At program point L681(lines 638 683) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= 2 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2022-11-21 17:09:55,091 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2022-11-21 17:09:55,092 INFO L899 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2022-11-21 17:09:55,092 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:09:55,092 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 644) no Hoare annotation was computed. [2022-11-21 17:09:55,092 INFO L902 garLoopResultBuilder]: At program point L223(lines 216 225) the Hoare annotation is: true [2022-11-21 17:09:55,092 INFO L902 garLoopResultBuilder]: At program point L248(lines 229 251) the Hoare annotation is: true [2022-11-21 17:09:55,093 INFO L895 garLoopResultBuilder]: At program point L913(lines 908 916) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:09:55,093 INFO L895 garLoopResultBuilder]: At program point L905(lines 901 907) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:09:55,093 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2022-11-21 17:09:55,093 INFO L895 garLoopResultBuilder]: At program point L674-2(lines 668 679) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:09:55,093 INFO L895 garLoopResultBuilder]: At program point L212(lines 208 214) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:09:55,094 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 664) no Hoare annotation was computed. [2022-11-21 17:09:55,094 INFO L899 garLoopResultBuilder]: For program point L658-1(lines 658 664) no Hoare annotation was computed. [2022-11-21 17:09:55,094 INFO L902 garLoopResultBuilder]: At program point L687(lines 628 691) the Hoare annotation is: true [2022-11-21 17:09:55,094 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= 2 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2022-11-21 17:09:55,095 INFO L895 garLoopResultBuilder]: At program point L898(lines 894 900) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:09:55,095 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-21 17:09:55,096 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2022-11-21 17:09:55,096 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (or (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-21 17:09:55,100 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:09:55,102 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:09:55,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:09:55 BoogieIcfgContainer [2022-11-21 17:09:55,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:09:55,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:09:55,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:09:55,134 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:09:55,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:09:48" (3/4) ... [2022-11-21 17:09:55,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:09:55,146 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-21 17:09:55,146 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-21 17:09:55,147 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-21 17:09:55,147 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-21 17:09:55,147 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-21 17:09:55,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-21 17:09:55,154 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 17:09:55,155 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 17:09:55,155 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:09:55,156 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:09:55,156 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:09:55,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-21 17:09:55,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-21 17:09:55,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(2 == waterLevel) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) || ((((!(pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) [2022-11-21 17:09:55,189 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) [2022-11-21 17:09:55,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && tmp == 1)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || ((!(2 == waterLevel) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-21 17:09:55,192 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || ((((\result == 1 && pumpRunning == 0) && tmp == 0) && tmp == 1) && 1 == systemActive)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((((((pumpRunning == 0 && !(2 == waterLevel)) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-21 17:09:55,192 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && pumpRunning == 0) && tmp == 1) && \result == 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((!(2 == \result) && !(2 == waterLevel)) && tmp == 0) && \old(waterLevel) == waterLevel)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-21 17:09:55,193 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || \old(pumpRunning) == 0)) && ((\result == 1 || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-21 17:09:55,193 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || \old(pumpRunning) == 0) && ((!(\old(waterLevel) == 1) || !(1 == systemActive)) || (((\result == 1 && \result == 0) && tmp == 1) && tmp___0 == 0))) && ((!(1 == systemActive) || (((pumpRunning == 0 && !(2 == waterLevel)) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((pumpRunning == 0 && !(tmp___0 == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && !(\result == 0))) [2022-11-21 17:09:55,193 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(pumpRunning == 0) && !(\result == 0)) || !(1 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-21 17:09:55,194 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) == 1) || !(1 == systemActive)) && (!(1 == systemActive) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (!(1 == systemActive) || \old(pumpRunning) == 0) [2022-11-21 17:09:55,240 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:09:55,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:09:55,252 INFO L158 Benchmark]: Toolchain (without parser) took 7763.56ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 103.0MB in the beginning and 73.7MB in the end (delta: 29.3MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,252 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:09:55,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.92ms. Allocated memory is still 134.2MB. Free memory was 103.0MB in the beginning and 84.8MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.25ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,253 INFO L158 Benchmark]: Boogie Preprocessor took 33.37ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:09:55,254 INFO L158 Benchmark]: RCFGBuilder took 649.54ms. Allocated memory is still 134.2MB. Free memory was 81.2MB in the beginning and 65.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,254 INFO L158 Benchmark]: TraceAbstraction took 6330.79ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 65.4MB in the beginning and 79.0MB in the end (delta: -13.6MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,255 INFO L158 Benchmark]: Witness Printer took 117.09ms. Allocated memory is still 169.9MB. Free memory was 79.0MB in the beginning and 73.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:09:55,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.92ms. Allocated memory is still 134.2MB. Free memory was 103.0MB in the beginning and 84.8MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.25ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.37ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 81.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 649.54ms. Allocated memory is still 134.2MB. Free memory was 81.2MB in the beginning and 65.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6330.79ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 65.4MB in the beginning and 79.0MB in the end (delta: -13.6MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. * Witness Printer took 117.09ms. Allocated memory is still 169.9MB. Free memory was 79.0MB in the beginning and 73.7MB in the end (delta: 5.3MB). 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: 623]: 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 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 702 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 689 mSDsluCounter, 2580 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1684 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 896 mSDtfsCounter, 553 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=6, InterpolantAutomatonStates: 64, 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, 79 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 502 PreInvPairs, 600 NumberOfFragments, 763 HoareAnnotationTreeSize, 502 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 4275 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 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: 908]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || \old(pumpRunning) == 0)) && ((\result == 1 || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 901]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 628]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || \old(pumpRunning) == 0) && ((!(\old(waterLevel) == 1) || !(1 == systemActive)) || (((\result == 1 && \result == 0) && tmp == 1) && tmp___0 == 0))) && ((!(1 == systemActive) || (((pumpRunning == 0 && !(2 == waterLevel)) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((pumpRunning == 0 && !(tmp___0 == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && !(\result == 0))) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 784]: Loop Invariant Derived loop invariant: (((!(pumpRunning == 0) && !(\result == 0)) || !(1 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) == 1) || !(1 == systemActive)) && (!(1 == systemActive) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (!(1 == systemActive) || \old(pumpRunning) == 0) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((\result == 1 && pumpRunning == 0) && tmp == 1) && \result == 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((!(2 == \result) && !(2 == waterLevel)) && tmp == 0) && \old(waterLevel) == waterLevel)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && tmp == 1)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || ((!(2 == waterLevel) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: ((((!(2 == waterLevel) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) || ((((!(pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || ((((\result == 1 && pumpRunning == 0) && tmp == 0) && tmp == 1) && 1 == systemActive)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((((((pumpRunning == 0 && !(2 == waterLevel)) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: !(1 == systemActive) - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 17:09:55,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fa55f97-5398-4516-9378-91c8f2cae5d9/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE