./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL --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 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:57:29,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:57:29,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:57:29,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:57:29,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:57:29,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:57:29,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:57:29,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:57:29,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:57:29,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:57:29,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:57:29,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:57:29,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:57:29,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:57:29,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:57:29,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:57:29,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:57:29,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:57:29,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:57:29,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:57:29,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:57:29,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:57:29,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:57:29,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:57:29,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:57:29,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:57:29,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:57:29,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:57:29,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:57:29,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:57:29,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:57:29,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:57:29,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:57:29,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:57:29,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:57:29,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:57:29,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:57:29,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:57:29,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:57:29,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:57:29,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:57:29,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:57:29,962 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:57:29,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:57:29,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:57:29,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:57:29,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:57:29,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:57:29,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:57:29,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:57:29,966 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:57:29,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:57:29,967 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:57:29,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:57:29,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:57:29,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:57:29,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:57:29,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:57:29,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:57:29,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:57:29,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:57:29,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:57:29,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:57:29,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:57:29,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:57:29,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:57:29,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:57:29,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:57:29,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:57:29,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:57:29,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:57:29,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:57:29,981 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:57:29,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:57:29,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:57:29,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:57:29,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a3827b4b3d19f95c620af38f0e4f5ff9ca95e734fa5646c78162250800aed09 [2021-11-19 04:57:30,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:57:30,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:57:30,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:57:30,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:57:30,272 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:57:30,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-19 04:57:30,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/data/18ba27d34/d208862da7494ba68afc0e58ae889ea2/FLAG56dd34b05 [2021-11-19 04:57:30,973 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:57:30,974 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-11-19 04:57:30,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/data/18ba27d34/d208862da7494ba68afc0e58ae889ea2/FLAG56dd34b05 [2021-11-19 04:57:31,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/data/18ba27d34/d208862da7494ba68afc0e58ae889ea2 [2021-11-19 04:57:31,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:57:31,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:57:31,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:57:31,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:57:31,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:57:31,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337e5cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31, skipping insertion in model container [2021-11-19 04:57:31,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:57:31,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:57:31,579 WARN L230 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_e3dc8234-3002-4902-aba9-728d8db38eaa/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-19 04:57:31,584 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:57:31,593 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:57:31,658 WARN L230 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_e3dc8234-3002-4902-aba9-728d8db38eaa/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[17176,17189] [2021-11-19 04:57:31,662 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:57:31,694 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:57:31,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31 WrapperNode [2021-11-19 04:57:31,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:57:31,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:57:31,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:57:31,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:57:31,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,780 INFO L137 Inliner]: procedures = 52, calls = 153, calls flagged for inlining = 19, calls inlined = 15, statements flattened = 207 [2021-11-19 04:57:31,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:57:31,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:57:31,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:57:31,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:57:31,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:57:31,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:57:31,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:57:31,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:57:31,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (1/1) ... [2021-11-19 04:57:31,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:57:31,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:57:31,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:57:31,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:57:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:57:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-19 04:57:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-19 04:57:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-19 04:57:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-19 04:57:31,895 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-19 04:57:31,895 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-19 04:57:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-19 04:57:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-19 04:57:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-19 04:57:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-19 04:57:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-19 04:57:31,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-19 04:57:31,896 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-19 04:57:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-19 04:57:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:57:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-19 04:57:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-19 04:57:31,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:57:31,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:57:31,967 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:57:31,969 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:57:32,339 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:57:32,347 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:57:32,348 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:57:32,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32 BoogieIcfgContainer [2021-11-19 04:57:32,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:57:32,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:57:32,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:57:32,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:57:32,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:31" (1/3) ... [2021-11-19 04:57:32,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee6be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:32, skipping insertion in model container [2021-11-19 04:57:32,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:31" (2/3) ... [2021-11-19 04:57:32,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ee6be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:32, skipping insertion in model container [2021-11-19 04:57:32,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32" (3/3) ... [2021-11-19 04:57:32,359 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2021-11-19 04:57:32,364 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:57:32,365 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:57:32,414 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:57:32,421 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:57:32,421 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:57:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 69 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-19 04:57:32,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-19 04:57:32,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:32,449 INFO L514 BasicCegarLoop]: 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] [2021-11-19 04:57:32,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:32,456 INFO L85 PathProgramCache]: Analyzing trace with hash 541584951, now seen corresponding path program 1 times [2021-11-19 04:57:32,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:32,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238823256] [2021-11-19 04:57:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:32,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:57:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:32,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:32,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238823256] [2021-11-19 04:57:32,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238823256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:32,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:32,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:57:32,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672752873] [2021-11-19 04:57:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:32,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:57:32,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:32,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:57:32,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:57:32,751 INFO L87 Difference]: Start difference. First operand has 85 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 69 states have internal predecessors, (85), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:32,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:32,807 INFO L93 Difference]: Finished difference Result 162 states and 217 transitions. [2021-11-19 04:57:32,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:57:32,809 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-19 04:57:32,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:32,820 INFO L225 Difference]: With dead ends: 162 [2021-11-19 04:57:32,820 INFO L226 Difference]: Without dead ends: 76 [2021-11-19 04:57:32,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:57:32,829 INFO L933 BasicCegarLoop]: 105 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, 105 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 [2021-11-19 04:57:32,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:57:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-19 04:57:32,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-11-19 04:57:32,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 55 states have (on average 1.290909090909091) internal successors, (71), 61 states have internal predecessors, (71), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-19 04:57:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2021-11-19 04:57:32,893 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 25 [2021-11-19 04:57:32,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:32,894 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2021-11-19 04:57:32,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2021-11-19 04:57:32,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-19 04:57:32,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:32,901 INFO L514 BasicCegarLoop]: 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] [2021-11-19 04:57:32,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:57:32,902 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:32,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:32,907 INFO L85 PathProgramCache]: Analyzing trace with hash 366750319, now seen corresponding path program 1 times [2021-11-19 04:57:32,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:32,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498772308] [2021-11-19 04:57:32,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:32,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-19 04:57:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:33,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:33,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498772308] [2021-11-19 04:57:33,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498772308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:33,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:33,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:57:33,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976027443] [2021-11-19 04:57:33,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:33,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:57:33,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:33,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:57:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:57:33,067 INFO L87 Difference]: Start difference. First operand 76 states and 96 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:33,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:33,100 INFO L93 Difference]: Finished difference Result 114 states and 142 transitions. [2021-11-19 04:57:33,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:57:33,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-19 04:57:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:33,106 INFO L225 Difference]: With dead ends: 114 [2021-11-19 04:57:33,107 INFO L226 Difference]: Without dead ends: 67 [2021-11-19 04:57:33,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:57:33,111 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 16 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 145 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 [2021-11-19 04:57:33,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:57:33,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-11-19 04:57:33,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2021-11-19 04:57:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 55 states have internal predecessors, (64), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-19 04:57:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 84 transitions. [2021-11-19 04:57:33,130 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 84 transitions. Word has length 26 [2021-11-19 04:57:33,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:33,132 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 84 transitions. [2021-11-19 04:57:33,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2021-11-19 04:57:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 04:57:33,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:33,141 INFO L514 BasicCegarLoop]: 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] [2021-11-19 04:57:33,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:57:33,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash 630458845, now seen corresponding path program 1 times [2021-11-19 04:57:33,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:33,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921673843] [2021-11-19 04:57:33,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:33,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:33,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-19 04:57:33,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:33,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:33,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921673843] [2021-11-19 04:57:33,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921673843] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:33,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:33,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:57:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770278570] [2021-11-19 04:57:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:33,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:57:33,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:57:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:57:33,269 INFO L87 Difference]: Start difference. First operand 67 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:33,451 INFO L93 Difference]: Finished difference Result 230 states and 296 transitions. [2021-11-19 04:57:33,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:57:33,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2021-11-19 04:57:33,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:33,455 INFO L225 Difference]: With dead ends: 230 [2021-11-19 04:57:33,455 INFO L226 Difference]: Without dead ends: 170 [2021-11-19 04:57:33,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:57:33,458 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 175 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:57:33,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 446 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:57:33,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-19 04:57:33,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 164. [2021-11-19 04:57:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 119 states have (on average 1.3445378151260505) internal successors, (160), 133 states have internal predecessors, (160), 25 states have call successors, (25), 19 states have call predecessors, (25), 19 states have return successors, (26), 19 states have call predecessors, (26), 25 states have call successors, (26) [2021-11-19 04:57:33,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2021-11-19 04:57:33,489 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 30 [2021-11-19 04:57:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:33,490 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2021-11-19 04:57:33,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 04:57:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2021-11-19 04:57:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-19 04:57:33,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:33,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:57:33,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:57:33,493 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:33,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1933136590, now seen corresponding path program 1 times [2021-11-19 04:57:33,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:33,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604599544] [2021-11-19 04:57:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:33,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-19 04:57:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 04:57:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:33,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:33,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604599544] [2021-11-19 04:57:33,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604599544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:33,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:33,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:57:33,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879245613] [2021-11-19 04:57:33,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:33,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:57:33,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:33,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:57:33,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:57:33,575 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:57:33,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:33,668 INFO L93 Difference]: Finished difference Result 470 states and 624 transitions. [2021-11-19 04:57:33,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 04:57:33,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2021-11-19 04:57:33,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:33,675 INFO L225 Difference]: With dead ends: 470 [2021-11-19 04:57:33,680 INFO L226 Difference]: Without dead ends: 313 [2021-11-19 04:57:33,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:57:33,688 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 55 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:57:33,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 345 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:57:33,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-19 04:57:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 304. [2021-11-19 04:57:33,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 218 states have (on average 1.3211009174311927) internal successors, (288), 242 states have internal predecessors, (288), 50 states have call successors, (50), 38 states have call predecessors, (50), 35 states have return successors, (56), 35 states have call predecessors, (56), 50 states have call successors, (56) [2021-11-19 04:57:33,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 394 transitions. [2021-11-19 04:57:33,743 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 394 transitions. Word has length 35 [2021-11-19 04:57:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:33,744 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 394 transitions. [2021-11-19 04:57:33,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:57:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 394 transitions. [2021-11-19 04:57:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 04:57:33,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:33,762 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:57:33,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 04:57:33,763 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:33,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1345149065, now seen corresponding path program 1 times [2021-11-19 04:57:33,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:33,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27005806] [2021-11-19 04:57:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:33,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-19 04:57:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-19 04:57:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:57:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:57:33,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:57:33,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27005806] [2021-11-19 04:57:33,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27005806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:57:33,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:57:33,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:57:33,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128712269] [2021-11-19 04:57:33,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:57:33,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:57:33,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:57:33,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:57:33,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:57:33,838 INFO L87 Difference]: Start difference. First operand 304 states and 394 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:57:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:57:33,868 INFO L93 Difference]: Finished difference Result 528 states and 696 transitions. [2021-11-19 04:57:33,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:57:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2021-11-19 04:57:33,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:57:33,871 INFO L225 Difference]: With dead ends: 528 [2021-11-19 04:57:33,871 INFO L226 Difference]: Without dead ends: 231 [2021-11-19 04:57:33,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:57:33,874 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 56 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 [2021-11-19 04:57:33,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 56 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:57:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-19 04:57:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2021-11-19 04:57:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 173 states have (on average 1.2716763005780347) internal successors, (220), 183 states have internal predecessors, (220), 28 states have call successors, (28), 28 states have call predecessors, (28), 25 states have return successors, (30), 25 states have call predecessors, (30), 28 states have call successors, (30) [2021-11-19 04:57:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-19 04:57:33,920 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 37 [2021-11-19 04:57:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:57:33,920 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-19 04:57:33,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:57:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-19 04:57:33,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-19 04:57:33,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:57:33,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:57:33,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:57:33,923 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:57:33,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:57:33,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1116867896, now seen corresponding path program 1 times [2021-11-19 04:57:33,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:57:33,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265084522] [2021-11-19 04:57:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:57:33,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:57:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:57:33,962 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:57:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:57:34,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:57:34,018 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 04:57:34,019 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:57:34,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 04:57:34,024 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 04:57:34,027 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:57:34,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:57:34 BoogieIcfgContainer [2021-11-19 04:57:34,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:57:34,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:57:34,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:57:34,074 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:57:34,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:32" (3/4) ... [2021-11-19 04:57:34,076 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 04:57:34,184 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:57:34,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:57:34,186 INFO L158 Benchmark]: Toolchain (without parser) took 2958.40ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.1MB in the beginning and 52.4MB in the end (delta: 11.6MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,186 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:57:34,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.55ms. Allocated memory is still 88.1MB. Free memory was 63.7MB in the beginning and 54.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.08ms. Allocated memory is still 88.1MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,188 INFO L158 Benchmark]: Boogie Preprocessor took 30.98ms. Allocated memory is still 88.1MB. Free memory was 52.7MB in the beginning and 51.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,188 INFO L158 Benchmark]: RCFGBuilder took 537.32ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 76.6MB in the end (delta: -25.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,189 INFO L158 Benchmark]: TraceAbstraction took 1721.12ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 56.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,189 INFO L158 Benchmark]: Witness Printer took 111.59ms. Allocated memory is still 107.0MB. Free memory was 56.6MB in the beginning and 52.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 04:57:34,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 62.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.55ms. Allocated memory is still 88.1MB. Free memory was 63.7MB in the beginning and 54.9MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.08ms. Allocated memory is still 88.1MB. Free memory was 54.9MB in the beginning and 52.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.98ms. Allocated memory is still 88.1MB. Free memory was 52.7MB in the beginning and 51.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.32ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.1MB in the beginning and 76.6MB in the end (delta: -25.5MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1721.12ms. Allocated memory is still 107.0MB. Free memory was 76.1MB in the beginning and 56.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 111.59ms. Allocated memory is still 107.0MB. Free memory was 56.6MB in the beginning and 52.4MB 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 - CounterExampleResult [Line: 880]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L59] int pumpRunning = 0; [L60] int systemActive = 1; [L464] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L662] int waterLevel = 1; [L663] int methaneLevelCritical = 0; [L742] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] int retValue_acc ; [L819] int tmp ; [L823] FCALL select_helpers() [L824] FCALL select_features() [L825] CALL, EXPR valid_product() [L911] int retValue_acc ; [L914] retValue_acc = 1 [L915] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L825] RET, EXPR valid_product() [L825] tmp = valid_product() [L827] COND TRUE \read(tmp) [L829] FCALL setup() [L830] CALL runTest() [L809] CALL test() [L229] int splverifierCounter ; [L230] int tmp ; [L231] int tmp___0 ; [L232] int tmp___1 ; [L233] int tmp___2 ; [L236] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L238] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L240] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L246] tmp = __VERIFIER_nondet_int() [L248] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L250] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L680] COND TRUE waterLevel < 2 [L681] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L250] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L256] tmp___0 = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L266] tmp___2 = __VERIFIER_nondet_int() [L268] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L283] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L74] COND TRUE \read(systemActive) [L76] CALL processEnvironment() [L96] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] FCALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] RET processEnvironment() [L82] CALL __utac_acc__Specification3_spec__1() [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L701] int retValue_acc ; [L704] retValue_acc = methaneLevelCritical [L705] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L849] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L855] CALL, EXPR getWaterLevel() [L733] int retValue_acc ; [L736] retValue_acc = waterLevel [L737] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L855] RET, EXPR getWaterLevel() [L855] tmp___0 = getWaterLevel() [L857] COND TRUE tmp___0 == 2 [L859] CALL, EXPR isPumpRunning() [L165] int retValue_acc ; [L168] retValue_acc = pumpRunning [L169] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L859] RET, EXPR isPumpRunning() [L859] tmp___1 = isPumpRunning() [L861] COND FALSE !(\read(tmp___1)) [L865] CALL __automaton_fail() [L880] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 294 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 290 mSDsluCounter, 1097 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 654 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 443 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2021-11-19 04:57:34,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3dc8234-3002-4902-aba9-728d8db38eaa/bin/uautomizer-ZXIjhQolGL/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE