./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:08:10,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:08:10,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:08:10,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:08:10,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:08:10,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:08:10,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:08:10,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:08:10,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:08:10,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:08:10,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:08:10,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:08:10,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:08:10,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:08:10,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:08:10,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:08:10,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:08:10,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:08:10,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:08:10,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:08:10,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:08:10,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:08:10,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:08:10,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:08:10,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:08:10,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:08:10,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:08:10,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:08:10,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:08:10,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:08:10,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:08:10,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:08:10,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:08:10,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:08:10,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:08:10,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:08:10,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:08:10,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:08:10,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:08:10,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:08:10,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:08:10,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:08:10,273 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:08:10,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:08:10,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:08:10,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:08:10,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:08:10,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:08:10,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:08:10,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:08:10,275 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:08:10,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:08:10,275 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:08:10,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:08:10,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:08:10,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:08:10,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:08:10,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:08:10,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:08:10,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:08:10,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:08:10,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:08:10,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:08:10,278 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2022-12-13 13:08:10,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:08:10,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:08:10,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:08:10,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:08:10,494 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:08:10,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2022-12-13 13:08:12,951 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:08:13,126 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:08:13,127 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2022-12-13 13:08:13,135 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/data/2342b9240/818b4b55d5504f5e8f5bd251422b421d/FLAG7e9be26db [2022-12-13 13:08:13,533 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/data/2342b9240/818b4b55d5504f5e8f5bd251422b421d [2022-12-13 13:08:13,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:08:13,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:08:13,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:08:13,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:08:13,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:08:13,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6821a667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13, skipping insertion in model container [2022-12-13 13:08:13,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:08:13,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:08:13,682 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_026f83ae-e156-44ed-825a-e3b68300f75b/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2022-12-13 13:08:13,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:08:13,741 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:08:13,753 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_026f83ae-e156-44ed-825a-e3b68300f75b/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2022-12-13 13:08:13,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:08:13,797 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:08:13,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13 WrapperNode [2022-12-13 13:08:13,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:08:13,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:08:13,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:08:13,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:08:13,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,832 INFO L138 Inliner]: procedures = 54, calls = 97, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 166 [2022-12-13 13:08:13,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:08:13,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:08:13,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:08:13,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:08:13,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,849 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:08:13,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:08:13,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:08:13,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:08:13,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (1/1) ... [2022-12-13 13:08:13,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:08:13,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:08:13,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:08:13,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:08:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:08:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 13:08:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 13:08:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 13:08:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 13:08:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 13:08:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 13:08:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 13:08:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 13:08:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-13 13:08:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-13 13:08:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:08:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 13:08:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 13:08:13,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:08:13,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:08:13,969 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:08:13,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:08:14,128 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:08:14,135 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:08:14,135 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:08:14,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:08:14 BoogieIcfgContainer [2022-12-13 13:08:14,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:08:14,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:08:14,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:08:14,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:08:14,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:08:13" (1/3) ... [2022-12-13 13:08:14,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f7c139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:08:14, skipping insertion in model container [2022-12-13 13:08:14,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:08:13" (2/3) ... [2022-12-13 13:08:14,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52f7c139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:08:14, skipping insertion in model container [2022-12-13 13:08:14,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:08:14" (3/3) ... [2022-12-13 13:08:14,145 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2022-12-13 13:08:14,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:08:14,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 13:08:14,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:08:14,203 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;@4e1c2d53, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:08:14,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 13:08:14,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-13 13:08:14,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 13:08:14,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:14,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:08:14,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:14,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:14,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1407183598, now seen corresponding path program 1 times [2022-12-13 13:08:14,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:14,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912949635] [2022-12-13 13:08:14,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:14,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:14,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:14,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:14,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912949635] [2022-12-13 13:08:14,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912949635] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:14,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:14,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:08:14,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380892550] [2022-12-13 13:08:14,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:14,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:08:14,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:14,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:08:14,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:08:14,379 INFO L87 Difference]: Start difference. First operand has 76 states, 58 states have (on average 1.396551724137931) internal successors, (81), 65 states have internal predecessors, (81), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:14,403 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-12-13 13:08:14,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:08:14,405 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-13 13:08:14,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:14,411 INFO L225 Difference]: With dead ends: 144 [2022-12-13 13:08:14,412 INFO L226 Difference]: Without dead ends: 67 [2022-12-13 13:08:14,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:08:14,417 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 [2022-12-13 13:08:14,417 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] [2022-12-13 13:08:14,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-13 13:08:14,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-12-13 13:08:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 57 states have internal predecessors, (67), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-13 13:08:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-12-13 13:08:14,449 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 19 [2022-12-13 13:08:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:14,449 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-12-13 13:08:14,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-12-13 13:08:14,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 13:08:14,451 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:14,451 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] [2022-12-13 13:08:14,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:08:14,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:14,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:14,452 INFO L85 PathProgramCache]: Analyzing trace with hash 321226629, now seen corresponding path program 1 times [2022-12-13 13:08:14,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:14,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335091213] [2022-12-13 13:08:14,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:14,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335091213] [2022-12-13 13:08:14,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335091213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:14,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:14,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:08:14,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509218790] [2022-12-13 13:08:14,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:14,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:08:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:14,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:08:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:08:14,523 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:14,536 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2022-12-13 13:08:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:08:14,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 13:08:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:14,538 INFO L225 Difference]: With dead ends: 96 [2022-12-13 13:08:14,538 INFO L226 Difference]: Without dead ends: 58 [2022-12-13 13:08:14,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:08:14,539 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 16 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:08:14,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 125 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:08:14,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-12-13 13:08:14,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-12-13 13:08:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 51 states have internal predecessors, (60), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-13 13:08:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-12-13 13:08:14,546 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 20 [2022-12-13 13:08:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:14,546 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-12-13 13:08:14,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,547 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-12-13 13:08:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 13:08:14,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:14,547 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] [2022-12-13 13:08:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:08:14,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:14,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1713085083, now seen corresponding path program 1 times [2022-12-13 13:08:14,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:14,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535532454] [2022-12-13 13:08:14,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:14,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:14,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:14,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:14,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535532454] [2022-12-13 13:08:14,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535532454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:14,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:14,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:08:14,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433177440] [2022-12-13 13:08:14,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:14,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:08:14,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:14,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:08:14,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:08:14,655 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:14,777 INFO L93 Difference]: Finished difference Result 197 states and 259 transitions. [2022-12-13 13:08:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:08:14,777 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-13 13:08:14,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:14,778 INFO L225 Difference]: With dead ends: 197 [2022-12-13 13:08:14,778 INFO L226 Difference]: Without dead ends: 146 [2022-12-13 13:08:14,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:08:14,780 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 153 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:08:14,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 392 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:08:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-13 13:08:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2022-12-13 13:08:14,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 121 states have internal predecessors, (147), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2022-12-13 13:08:14,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2022-12-13 13:08:14,798 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 24 [2022-12-13 13:08:14,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:14,798 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2022-12-13 13:08:14,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2022-12-13 13:08:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 13:08:14,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:14,799 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] [2022-12-13 13:08:14,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:08:14,800 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:14,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:14,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1716928239, now seen corresponding path program 1 times [2022-12-13 13:08:14,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:14,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556357650] [2022-12-13 13:08:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:14,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:14,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556357650] [2022-12-13 13:08:14,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556357650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:14,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:14,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:08:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696328194] [2022-12-13 13:08:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:14,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:08:14,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:14,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:08:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:08:14,886 INFO L87 Difference]: Start difference. First operand 140 states and 184 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:14,940 INFO L93 Difference]: Finished difference Result 389 states and 533 transitions. [2022-12-13 13:08:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:08:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-13 13:08:14,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:14,942 INFO L225 Difference]: With dead ends: 389 [2022-12-13 13:08:14,942 INFO L226 Difference]: Without dead ends: 256 [2022-12-13 13:08:14,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:08:14,944 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 46 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:08:14,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 288 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:08:14,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-12-13 13:08:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-12-13 13:08:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 194 states have (on average 1.3505154639175259) internal successors, (262), 218 states have internal predecessors, (262), 36 states have call successors, (36), 28 states have call predecessors, (36), 25 states have return successors, (42), 21 states have call predecessors, (42), 36 states have call successors, (42) [2022-12-13 13:08:14,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 340 transitions. [2022-12-13 13:08:14,971 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 340 transitions. Word has length 28 [2022-12-13 13:08:14,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:14,971 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 340 transitions. [2022-12-13 13:08:14,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:14,971 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 340 transitions. [2022-12-13 13:08:14,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-13 13:08:14,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:14,972 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] [2022-12-13 13:08:14,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:08:14,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:14,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1150482326, now seen corresponding path program 1 times [2022-12-13 13:08:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:14,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307733076] [2022-12-13 13:08:14,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:14,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:15,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:15,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307733076] [2022-12-13 13:08:15,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307733076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:15,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:15,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:08:15,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659032692] [2022-12-13 13:08:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:15,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:08:15,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:15,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:08:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:08:15,016 INFO L87 Difference]: Start difference. First operand 256 states and 340 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:15,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:15,036 INFO L93 Difference]: Finished difference Result 444 states and 600 transitions. [2022-12-13 13:08:15,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:08:15,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-13 13:08:15,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:15,037 INFO L225 Difference]: With dead ends: 444 [2022-12-13 13:08:15,037 INFO L226 Difference]: Without dead ends: 195 [2022-12-13 13:08:15,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:08:15,039 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:08:15,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:08:15,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-13 13:08:15,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 191. [2022-12-13 13:08:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 149 states have (on average 1.2751677852348993) internal successors, (190), 159 states have internal predecessors, (190), 22 states have call successors, (22), 22 states have call predecessors, (22), 19 states have return successors, (24), 19 states have call predecessors, (24), 22 states have call successors, (24) [2022-12-13 13:08:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 236 transitions. [2022-12-13 13:08:15,054 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 236 transitions. Word has length 30 [2022-12-13 13:08:15,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:15,054 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 236 transitions. [2022-12-13 13:08:15,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 236 transitions. [2022-12-13 13:08:15,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 13:08:15,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:08:15,055 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] [2022-12-13 13:08:15,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:08:15,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 13:08:15,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:08:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2143013367, now seen corresponding path program 1 times [2022-12-13 13:08:15,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:08:15,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537537392] [2022-12-13 13:08:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:08:15,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:08:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:15,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 13:08:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:08:15,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:08:15,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:08:15,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537537392] [2022-12-13 13:08:15,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537537392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:08:15,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:08:15,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:08:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007756644] [2022-12-13 13:08:15,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:08:15,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:08:15,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:08:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:08:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:08:15,127 INFO L87 Difference]: Start difference. First operand 191 states and 236 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:08:15,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:08:15,203 INFO L93 Difference]: Finished difference Result 206 states and 252 transitions. [2022-12-13 13:08:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:08:15,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 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 32 [2022-12-13 13:08:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:08:15,204 INFO L225 Difference]: With dead ends: 206 [2022-12-13 13:08:15,204 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:08:15,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 13:08:15,206 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 48 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:08:15,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 143 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:08:15,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:08:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:08:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:08:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:08:15,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-12-13 13:08:15,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:08:15,208 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:08:15,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 13:08:15,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:08:15,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:08:15,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 13:08:15,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:08:15,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:08:15,672 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 440 447) no Hoare annotation was computed. [2022-12-13 13:08:15,672 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 440 447) the Hoare annotation is: true [2022-12-13 13:08:15,672 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 440 447) no Hoare annotation was computed. [2022-12-13 13:08:15,672 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 381 387) no Hoare annotation was computed. [2022-12-13 13:08:15,672 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 381 387) the Hoare annotation is: true [2022-12-13 13:08:15,673 INFO L899 garLoopResultBuilder]: For program point L225-1(lines 221 232) no Hoare annotation was computed. [2022-12-13 13:08:15,673 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 221 232) the Hoare annotation is: true [2022-12-13 13:08:15,673 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 221 232) no Hoare annotation was computed. [2022-12-13 13:08:15,673 INFO L895 garLoopResultBuilder]: At program point L403(line 403) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,673 INFO L895 garLoopResultBuilder]: At program point L399(line 399) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,673 INFO L895 garLoopResultBuilder]: At program point isLowWaterSensorDry_returnLabel#1(lines 274 282) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,673 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 205) no Hoare annotation was computed. [2022-12-13 13:08:15,674 INFO L895 garLoopResultBuilder]: At program point L201-2(lines 197 208) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,674 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 357 380) no Hoare annotation was computed. [2022-12-13 13:08:15,674 INFO L895 garLoopResultBuilder]: At program point L408(line 408) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-12-13 13:08:15,674 INFO L895 garLoopResultBuilder]: At program point L408-1(lines 389 413) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-12-13 13:08:15,674 INFO L895 garLoopResultBuilder]: At program point getWaterLevel_returnLabel#1(lines 265 273) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-12-13 13:08:15,674 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 183) no Hoare annotation was computed. [2022-12-13 13:08:15,675 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 186) no Hoare annotation was computed. [2022-12-13 13:08:15,675 INFO L895 garLoopResultBuilder]: At program point L173-1(lines 165 189) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))))) [2022-12-13 13:08:15,675 INFO L899 garLoopResultBuilder]: For program point L368-1(lines 368 374) no Hoare annotation was computed. [2022-12-13 13:08:15,675 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 405) no Hoare annotation was computed. [2022-12-13 13:08:15,675 INFO L895 garLoopResultBuilder]: At program point __automaton_fail_returnLabel#1(lines 154 161) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,675 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 357 380) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-12-13 13:08:15,675 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 410) no Hoare annotation was computed. [2022-12-13 13:08:15,676 INFO L899 garLoopResultBuilder]: For program point L513(lines 513 517) no Hoare annotation was computed. [2022-12-13 13:08:15,676 INFO L899 garLoopResultBuilder]: For program point L513-2(lines 513 517) no Hoare annotation was computed. [2022-12-13 13:08:15,676 INFO L895 garLoopResultBuilder]: At program point isLowWaterLevel_returnLabel#1(lines 504 522) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-12-13 13:08:15,676 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-12-13 13:08:15,676 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 357 380) no Hoare annotation was computed. [2022-12-13 13:08:15,676 INFO L895 garLoopResultBuilder]: At program point isPumpRunning_returnLabel#1(lines 459 467) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-12-13 13:08:15,676 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2022-12-13 13:08:15,677 INFO L899 garLoopResultBuilder]: For program point L361-1(lines 360 379) no Hoare annotation was computed. [2022-12-13 13:08:15,677 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2022-12-13 13:08:15,677 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2022-12-13 13:08:15,677 INFO L899 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2022-12-13 13:08:15,677 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2022-12-13 13:08:15,677 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2022-12-13 13:08:15,677 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2022-12-13 13:08:15,677 INFO L902 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2022-12-13 13:08:15,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2022-12-13 13:08:15,678 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-12-13 13:08:15,678 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2022-12-13 13:08:15,678 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 533) no Hoare annotation was computed. [2022-12-13 13:08:15,678 INFO L902 garLoopResultBuilder]: At program point runTest_returnLabel#1(lines 117 126) the Hoare annotation is: true [2022-12-13 13:08:15,678 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 527 533) no Hoare annotation was computed. [2022-12-13 13:08:15,678 INFO L895 garLoopResultBuilder]: At program point select_features_returnLabel#1(lines 550 556) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 13:08:15,678 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 130 152) the Hoare annotation is: true [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L296(lines 295 342) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 338) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L902 garLoopResultBuilder]: At program point L346(lines 285 350) the Hoare annotation is: true [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L305-1(lines 305 311) no Hoare annotation was computed. [2022-12-13 13:08:15,679 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2022-12-13 13:08:15,680 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2022-12-13 13:08:15,680 INFO L895 garLoopResultBuilder]: At program point setup_returnLabel#1(lines 109 115) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 13:08:15,680 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 301) no Hoare annotation was computed. [2022-12-13 13:08:15,680 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 13:08:15,680 INFO L895 garLoopResultBuilder]: At program point L343(lines 294 344) the Hoare annotation is: false [2022-12-13 13:08:15,680 INFO L895 garLoopResultBuilder]: At program point L529(line 529) the Hoare annotation is: false [2022-12-13 13:08:15,680 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 337) no Hoare annotation was computed. [2022-12-13 13:08:15,680 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 13:08:15,681 INFO L895 garLoopResultBuilder]: At program point select_helpers_returnLabel#1(lines 557 563) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 13:08:15,681 INFO L895 garLoopResultBuilder]: At program point L331-2(lines 325 338) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 13:08:15,681 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 321) no Hoare annotation was computed. [2022-12-13 13:08:15,681 INFO L899 garLoopResultBuilder]: For program point L315-1(lines 315 321) no Hoare annotation was computed. [2022-12-13 13:08:15,681 INFO L895 garLoopResultBuilder]: At program point L340(lines 295 342) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 13:08:15,681 INFO L895 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 13:08:15,681 INFO L895 garLoopResultBuilder]: At program point stopSystem_returnLabel#1(lines 523 537) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-12-13 13:08:15,682 INFO L895 garLoopResultBuilder]: At program point valid_product_returnLabel#1(lines 564 572) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-12-13 13:08:15,682 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 209 220) no Hoare annotation was computed. [2022-12-13 13:08:15,682 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 209 220) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-12-13 13:08:15,682 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 209 220) no Hoare annotation was computed. [2022-12-13 13:08:15,685 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 13:08:15,688 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:08:15,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:08:15 BoogieIcfgContainer [2022-12-13 13:08:15,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:08:15,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:08:15,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:08:15,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:08:15,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:08:14" (3/4) ... [2022-12-13 13:08:15,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:08:15,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-12-13 13:08:15,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-12-13 13:08:15,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-12-13 13:08:15,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-12-13 13:08:15,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-12-13 13:08:15,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-12-13 13:08:15,719 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-13 13:08:15,719 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 13:08:15,719 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:08:15,720 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:08:15,720 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:08:15,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-12-13 13:08:15,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == systemActive && pumpRunning == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-12-13 13:08:15,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 13:08:15,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-12-13 13:08:15,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-12-13 13:08:15,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) [2022-12-13 13:08:15,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 13:08:15,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-12-13 13:08:15,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 13:08:15,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-12-13 13:08:15,763 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:08:15,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:08:15,764 INFO L158 Benchmark]: Toolchain (without parser) took 2226.41ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 64.6MB in the end (delta: 58.8MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,764 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:08:15,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.85ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 105.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.89ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,765 INFO L158 Benchmark]: Boogie Preprocessor took 18.11ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,765 INFO L158 Benchmark]: RCFGBuilder took 286.22ms. Allocated memory is still 153.1MB. Free memory was 100.9MB in the beginning and 86.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,766 INFO L158 Benchmark]: TraceAbstraction took 1563.08ms. Allocated memory is still 153.1MB. Free memory was 85.6MB in the beginning and 68.8MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,766 INFO L158 Benchmark]: Witness Printer took 60.29ms. Allocated memory is still 153.1MB. Free memory was 68.8MB in the beginning and 64.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:08:15,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 107.0MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.85ms. Allocated memory is still 153.1MB. Free memory was 123.4MB in the beginning and 105.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.89ms. Allocated memory is still 153.1MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.11ms. Allocated memory is still 153.1MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.22ms. Allocated memory is still 153.1MB. Free memory was 100.9MB in the beginning and 86.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1563.08ms. Allocated memory is still 153.1MB. Free memory was 85.6MB in the beginning and 68.8MB in the end (delta: 16.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 60.29ms. Allocated memory is still 153.1MB. Free memory was 68.8MB in the beginning and 64.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 158]: 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 301 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 669 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 423 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 35 LocationsWithAnnotation, 352 PreInvPairs, 418 NumberOfFragments, 252 HoareAnnotationTreeSize, 352 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 35 FomulaSimplificationsInter, 1653 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 523]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 294]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 557]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 459]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 13:08:15,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_026f83ae-e156-44ed-825a-e3b68300f75b/bin/uautomizer-uyxdKDjOR8/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