./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ --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 cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 --- 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-dbf71c6-m [2022-10-17 10:14:06,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:14:06,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:14:06,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:14:06,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:14:06,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:14:06,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:14:06,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:14:06,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:14:06,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:14:06,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:14:06,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:14:06,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:14:06,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:14:06,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:14:06,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:14:06,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:14:06,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:14:06,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:14:06,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:14:06,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:14:06,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:14:06,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:14:06,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:14:06,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:14:06,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:14:06,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:14:06,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:14:06,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:14:06,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:14:06,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:14:06,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:14:06,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:14:06,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:14:06,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:14:06,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:14:06,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:14:06,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:14:06,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:14:06,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:14:06,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:14:06,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:14:06,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:14:06,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:14:06,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:14:06,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:14:06,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:14:06,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:14:06,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:14:06,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:14:06,253 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:14:06,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:14:06,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:14:06,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:14:06,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:14:06,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:14:06,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:14:06,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:14:06,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:14:06,256 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:14:06,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:14:06,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:14:06,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:14:06,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:14:06,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:14:06,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:14:06,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:14:06,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:14:06,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:14:06,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:14:06,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:14:06,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:14:06,269 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:14:06,269 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:14:06,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:14:06,269 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_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 [2022-10-17 10:14:06,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:14:06,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:14:06,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:14:06,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:14:06,557 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:14:06,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-10-17 10:14:06,621 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/data/ec4ebed94/e9ff26d3dd614fb695aa2a0a15768bb9/FLAGc57d2bc5d [2022-10-17 10:14:07,129 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:14:07,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2022-10-17 10:14:07,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/data/ec4ebed94/e9ff26d3dd614fb695aa2a0a15768bb9/FLAGc57d2bc5d [2022-10-17 10:14:07,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/data/ec4ebed94/e9ff26d3dd614fb695aa2a0a15768bb9 [2022-10-17 10:14:07,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:14:07,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:14:07,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:07,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:14:07,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:14:07,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:07" (1/1) ... [2022-10-17 10:14:07,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68272ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:07, skipping insertion in model container [2022-10-17 10:14:07,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:07" (1/1) ... [2022-10-17 10:14:07,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:14:07,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:14:07,908 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_733427a8-7156-4081-96de-90e23933512a/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-10-17 10:14:07,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:07,951 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:14:08,031 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_733427a8-7156-4081-96de-90e23933512a/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2022-10-17 10:14:08,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:08,082 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:14:08,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08 WrapperNode [2022-10-17 10:14:08,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:08,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:14:08,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:14:08,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:14:08,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,146 INFO L138 Inliner]: procedures = 52, calls = 150, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 225 [2022-10-17 10:14:08,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:14:08,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:14:08,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:14:08,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:14:08,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:14:08,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:14:08,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:14:08,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:14:08,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (1/1) ... [2022-10-17 10:14:08,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:14:08,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:14:08,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:14:08,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:14:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:14:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:14:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:14:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:14:08,294 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:14:08,294 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:14:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:14:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-10-17 10:14:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-10-17 10:14:08,295 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:14:08,295 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:14:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:14:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:14:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:14:08,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:14:08,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:14:08,363 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:14:08,365 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:14:08,774 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:14:08,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:14:08,787 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:14:08,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:14:08 BoogieIcfgContainer [2022-10-17 10:14:08,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:14:08,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:14:08,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:14:08,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:14:08,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:14:07" (1/3) ... [2022-10-17 10:14:08,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206f2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:14:08, skipping insertion in model container [2022-10-17 10:14:08,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:08" (2/3) ... [2022-10-17 10:14:08,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206f2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:14:08, skipping insertion in model container [2022-10-17 10:14:08,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:14:08" (3/3) ... [2022-10-17 10:14:08,808 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2022-10-17 10:14:08,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:14:08,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:14:08,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:14:08,929 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;@4c865deb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:14:08,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:14:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-17 10:14:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 10:14:08,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:08,946 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:14:08,946 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:08,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash 98490504, now seen corresponding path program 1 times [2022-10-17 10:14:08,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:08,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773414510] [2022-10-17 10:14:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:08,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:14:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:14:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:14:09,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773414510] [2022-10-17 10:14:09,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773414510] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:14:09,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:14:09,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:14:09,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201389476] [2022-10-17 10:14:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:14:09,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:14:09,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:14:09,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:14:09,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:14:09,225 INFO L87 Difference]: Start difference. First operand has 75 states, 58 states have (on average 1.396551724137931) internal successors, (81), 64 states have internal predecessors, (81), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:09,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:14:09,258 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-10-17 10:14:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:14:09,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-10-17 10:14:09,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:14:09,270 INFO L225 Difference]: With dead ends: 142 [2022-10-17 10:14:09,270 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 10:14:09,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:14:09,278 INFO L413 NwaCegarLoop]: 93 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, 93 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 [2022-10-17 10:14:09,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:14:09,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 10:14:09,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-10-17 10:14:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 51 states have (on average 1.3137254901960784) internal successors, (67), 56 states have internal predecessors, (67), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 10:14:09,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2022-10-17 10:14:09,325 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 25 [2022-10-17 10:14:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:14:09,325 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2022-10-17 10:14:09,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:09,326 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2022-10-17 10:14:09,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 10:14:09,328 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:09,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:14:09,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:14:09,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:09,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1431022591, now seen corresponding path program 1 times [2022-10-17 10:14:09,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:09,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57385787] [2022-10-17 10:14:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:09,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-17 10:14:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:14:09,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:14:09,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57385787] [2022-10-17 10:14:09,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57385787] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:14:09,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:14:09,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:14:09,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011631691] [2022-10-17 10:14:09,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:14:09,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:14:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:14:09,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:14:09,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:14:09,514 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:09,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:14:09,544 INFO L93 Difference]: Finished difference Result 98 states and 124 transitions. [2022-10-17 10:14:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:14:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-10-17 10:14:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:14:09,552 INFO L225 Difference]: With dead ends: 98 [2022-10-17 10:14:09,554 INFO L226 Difference]: Without dead ends: 57 [2022-10-17 10:14:09,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:14:09,557 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 12 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 126 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 [2022-10-17 10:14:09,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:14:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-17 10:14:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-17 10:14:09,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 50 states have internal predecessors, (60), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 10:14:09,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2022-10-17 10:14:09,575 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 26 [2022-10-17 10:14:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:14:09,582 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2022-10-17 10:14:09,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2022-10-17 10:14:09,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-17 10:14:09,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:09,585 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] [2022-10-17 10:14:09,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:14:09,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:09,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:09,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1399531278, now seen corresponding path program 1 times [2022-10-17 10:14:09,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:09,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748696034] [2022-10-17 10:14:09,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:09,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-17 10:14:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:09,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:14:09,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:14:09,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748696034] [2022-10-17 10:14:09,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748696034] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:14:09,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:14:09,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:14:09,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755287311] [2022-10-17 10:14:09,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:14:09,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:14:09,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:14:09,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:14:09,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:14:09,929 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:10,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:14:10,060 INFO L93 Difference]: Finished difference Result 107 states and 138 transitions. [2022-10-17 10:14:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:14:10,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-10-17 10:14:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:14:10,065 INFO L225 Difference]: With dead ends: 107 [2022-10-17 10:14:10,066 INFO L226 Difference]: Without dead ends: 57 [2022-10-17 10:14:10,069 INFO L412 NwaCegarLoop]: 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 [2022-10-17 10:14:10,073 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 98 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:14:10,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 145 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:14:10,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-17 10:14:10,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-10-17 10:14:10,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-17 10:14:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-10-17 10:14:10,086 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 30 [2022-10-17 10:14:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:14:10,087 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-10-17 10:14:10,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:14:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-10-17 10:14:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 10:14:10,089 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:10,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:14:10,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:14:10,090 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:10,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:10,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1512730306, now seen corresponding path program 1 times [2022-10-17 10:14:10,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:10,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186073368] [2022-10-17 10:14:10,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:10,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-17 10:14:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:14:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:14:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:14:10,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186073368] [2022-10-17 10:14:10,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186073368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:14:10,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:14:10,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:14:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560925119] [2022-10-17 10:14:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:14:10,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:14:10,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:14:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:14:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:14:10,313 INFO L87 Difference]: Start difference. First operand 57 states and 71 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) [2022-10-17 10:14:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:14:10,397 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2022-10-17 10:14:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:14:10,398 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 [2022-10-17 10:14:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:14:10,400 INFO L225 Difference]: With dead ends: 153 [2022-10-17 10:14:10,401 INFO L226 Difference]: Without dead ends: 103 [2022-10-17 10:14:10,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:14:10,403 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 42 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:14:10,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 277 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:14:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2022-10-17 10:14:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2022-10-17 10:14:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 86 states have internal predecessors, (102), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-10-17 10:14:10,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 127 transitions. [2022-10-17 10:14:10,423 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 127 transitions. Word has length 35 [2022-10-17 10:14:10,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:14:10,424 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 127 transitions. [2022-10-17 10:14:10,424 INFO L496 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) [2022-10-17 10:14:10,425 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2022-10-17 10:14:10,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 10:14:10,427 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:10,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:14:10,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:14:10,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -831145447, now seen corresponding path program 1 times [2022-10-17 10:14:10,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:10,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954731953] [2022-10-17 10:14:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:10,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-17 10:14:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-17 10:14:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:14:10,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:14:10,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:14:10,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954731953] [2022-10-17 10:14:10,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954731953] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:14:10,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:14:10,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:14:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023300562] [2022-10-17 10:14:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:14:10,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:14:10,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:14:10,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:14:10,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:14:10,509 INFO L87 Difference]: Start difference. First operand 100 states and 127 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) [2022-10-17 10:14:10,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:14:10,526 INFO L93 Difference]: Finished difference Result 176 states and 225 transitions. [2022-10-17 10:14:10,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:14:10,527 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 [2022-10-17 10:14:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:14:10,528 INFO L225 Difference]: With dead ends: 176 [2022-10-17 10:14:10,528 INFO L226 Difference]: Without dead ends: 83 [2022-10-17 10:14:10,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:14:10,530 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:14:10,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:14:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-10-17 10:14:10,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-10-17 10:14:10,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 67 states have internal predecessors, (78), 10 states have call successors, (10), 10 states have call predecessors, (10), 9 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-10-17 10:14:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 98 transitions. [2022-10-17 10:14:10,546 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 98 transitions. Word has length 37 [2022-10-17 10:14:10,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:14:10,547 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 98 transitions. [2022-10-17 10:14:10,547 INFO L496 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) [2022-10-17 10:14:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 98 transitions. [2022-10-17 10:14:10,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 10:14:10,549 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:14:10,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:14:10,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:14:10,550 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:14:10,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:14:10,550 INFO L85 PathProgramCache]: Analyzing trace with hash 895001880, now seen corresponding path program 1 times [2022-10-17 10:14:10,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:14:10,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849309529] [2022-10-17 10:14:10,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:14:10,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:14:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:14:10,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:14:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:14:10,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:14:10,615 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:14:10,616 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:14:10,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:14:10,621 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-10-17 10:14:10,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:14:10,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:14:10 BoogieIcfgContainer [2022-10-17 10:14:10,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:14:10,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:14:10,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:14:10,671 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:14:10,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:14:08" (3/4) ... [2022-10-17 10:14:10,674 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:14:10,732 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:14:10,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:14:10,733 INFO L158 Benchmark]: Toolchain (without parser) took 3263.92ms. Allocated memory was 83.9MB in the beginning and 127.9MB in the end (delta: 44.0MB). Free memory was 43.5MB in the beginning and 63.4MB in the end (delta: -19.9MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,733 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:14:10,733 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.38ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.3MB in the beginning and 66.8MB in the end (delta: -23.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.14ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,734 INFO L158 Benchmark]: Boogie Preprocessor took 43.35ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 62.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,735 INFO L158 Benchmark]: RCFGBuilder took 598.45ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 45.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,735 INFO L158 Benchmark]: TraceAbstraction took 1878.55ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 66.7MB in the end (delta: -22.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,736 INFO L158 Benchmark]: Witness Printer took 61.11ms. Allocated memory is still 127.9MB. Free memory was 66.7MB in the beginning and 63.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:14:10,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.38ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 43.3MB in the beginning and 66.8MB in the end (delta: -23.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.14ms. Allocated memory is still 100.7MB. Free memory was 66.8MB in the beginning and 64.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.35ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 62.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.45ms. Allocated memory is still 100.7MB. Free memory was 62.6MB in the beginning and 45.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1878.55ms. Allocated memory was 100.7MB in the beginning and 127.9MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 66.7MB in the end (delta: -22.2MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 61.11ms. Allocated memory is still 127.9MB. Free memory was 66.7MB in the beginning and 63.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. 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: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L745] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] int retValue_acc ; [L822] int tmp ; [L826] FCALL select_helpers() [L827] FCALL select_features() [L828] CALL, EXPR valid_product() [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L828] RET, EXPR valid_product() [L828] tmp = valid_product() [L830] COND TRUE \read(tmp) [L832] FCALL setup() [L833] CALL runTest() [L812] CALL test() [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L533] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L535] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L545] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L545] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] 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] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] 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] [L576] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND TRUE \read(systemActive) [L609] CALL processEnvironment() [L629] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L647] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L609] RET processEnvironment() [L615] CALL __utac_acc__Specification3_spec__1() [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] 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] [L886] 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] [L886] tmp = isMethaneLevelCritical() [L888] COND FALSE !(\read(tmp)) [L892] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] 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] [L892] RET, EXPR getWaterLevel() [L892] tmp___0 = getWaterLevel() [L894] COND TRUE tmp___0 == 2 [L896] CALL, EXPR isPumpRunning() [L681] int retValue_acc ; [L684] retValue_acc = pumpRunning [L685] 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] [L896] RET, EXPR isPumpRunning() [L896] tmp___1 = isPumpRunning() [L898] COND FALSE !(\read(tmp___1)) [L902] CALL __automaton_fail() [L516] 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 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 195 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 192 mSDsluCounter, 694 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 356 mSDtfsCounter, 58 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=100occurred in iteration=4, InterpolantAutomatonStates: 18, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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! [2022-10-17 10:14:10,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733427a8-7156-4081-96de-90e23933512a/bin/uautomizer-J5u9QxTXDZ/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