./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN --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 d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 --- 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-6b4ec56 [2022-11-20 12:10:37,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:10:37,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:10:37,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:10:37,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:10:37,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:10:37,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:10:37,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:10:37,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:10:37,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:10:37,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:10:37,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:10:37,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:10:37,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:10:37,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:10:37,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:10:37,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:10:37,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:10:37,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:10:37,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:10:37,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:10:37,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:10:37,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:10:37,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:10:37,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:10:37,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:10:37,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:10:37,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:10:37,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:10:37,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:10:37,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:10:37,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:10:37,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:10:37,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:10:37,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:10:37,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:10:37,300 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:10:37,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:10:37,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:10:37,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:10:37,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:10:37,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 12:10:37,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:10:37,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:10:37,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:10:37,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:10:37,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:10:37,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:10:37,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:10:37,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:10:37,329 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:10:37,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:10:37,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:10:37,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:10:37,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:10:37,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:10:37,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:10:37,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:10:37,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:10:37,331 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:10:37,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:10:37,332 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:10:37,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:10:37,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:10:37,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:10:37,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:10:37,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:10:37,333 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:10:37,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:10:37,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:10:37,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:10:37,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:10:37,335 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:10:37,335 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:10:37,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:10:37,335 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_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8d5749cb33f10edd647435755bf2e2192f6038b258c1bda289ea3f61ba8ee50 [2022-11-20 12:10:37,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:10:37,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:10:37,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:10:37,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:10:37,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:10:37,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2022-11-20 12:10:40,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:10:40,901 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:10:40,902 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c [2022-11-20 12:10:40,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/data/53055b564/d1b19008bf894b6789ef4cd7123ddf4b/FLAG7ae3485b2 [2022-11-20 12:10:40,928 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/data/53055b564/d1b19008bf894b6789ef4cd7123ddf4b [2022-11-20 12:10:40,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:10:40,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:10:40,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:10:40,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:10:40,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:10:40,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:40" (1/1) ... [2022-11-20 12:10:40,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240b12af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:40, skipping insertion in model container [2022-11-20 12:10:40,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:40" (1/1) ... [2022-11-20 12:10:40,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:10:40,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:10:41,150 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2022-11-20 12:10:41,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:10:41,284 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:10:41,303 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/sv-benchmarks/c/product-lines/minepump_spec1_product35.cil.c[3064,3077] [2022-11-20 12:10:41,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:10:41,390 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:10:41,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41 WrapperNode [2022-11-20 12:10:41,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:10:41,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:10:41,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:10:41,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:10:41,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,464 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 168 [2022-11-20 12:10:41,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:10:41,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:10:41,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:10:41,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:10:41,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,497 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:10:41,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:10:41,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:10:41,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:10:41,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (1/1) ... [2022-11-20 12:10:41,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:10:41,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:10:41,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:10:41,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:10:41,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:10:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 12:10:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 12:10:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 12:10:41,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 12:10:41,618 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 12:10:41,619 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 12:10:41,620 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 12:10:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 12:10:41,621 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 12:10:41,621 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 12:10:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:10:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 12:10:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 12:10:41,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:10:41,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:10:41,733 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:10:41,736 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:10:42,115 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:10:42,122 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:10:42,122 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:10:42,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:42 BoogieIcfgContainer [2022-11-20 12:10:42,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:10:42,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:10:42,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:10:42,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:10:42,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:40" (1/3) ... [2022-11-20 12:10:42,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b22e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:42, skipping insertion in model container [2022-11-20 12:10:42,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:41" (2/3) ... [2022-11-20 12:10:42,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b22e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:42, skipping insertion in model container [2022-11-20 12:10:42,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:42" (3/3) ... [2022-11-20 12:10:42,140 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product35.cil.c [2022-11-20 12:10:42,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:10:42,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:10:42,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:10:42,260 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;@4c2f18c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:10:42,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:10:42,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 67 states have internal predecessors, (85), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 12:10:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-20 12:10:42,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:42,279 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] [2022-11-20 12:10:42,280 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:42,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash -257861563, now seen corresponding path program 1 times [2022-11-20 12:10:42,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:42,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15236391] [2022-11-20 12:10:42,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:42,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 12:10:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:42,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:42,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15236391] [2022-11-20 12:10:42,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15236391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:42,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:42,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:10:42,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205358486] [2022-11-20 12:10:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:42,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:10:42,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:42,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:10:42,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:10:42,647 INFO L87 Difference]: Start difference. First operand has 78 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 67 states have internal predecessors, (85), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:42,710 INFO L93 Difference]: Finished difference Result 148 states and 201 transitions. [2022-11-20 12:10:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:10:42,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-11-20 12:10:42,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:42,725 INFO L225 Difference]: With dead ends: 148 [2022-11-20 12:10:42,726 INFO L226 Difference]: Without dead ends: 69 [2022-11-20 12:10:42,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:10:42,735 INFO L413 NwaCegarLoop]: 97 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, 97 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:42,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:42,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-20 12:10:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-11-20 12:10:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-20 12:10:42,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2022-11-20 12:10:42,790 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 23 [2022-11-20 12:10:42,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:42,790 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2022-11-20 12:10:42,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:42,791 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2022-11-20 12:10:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 12:10:42,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:42,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:42,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:10:42,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:42,795 INFO L85 PathProgramCache]: Analyzing trace with hash 202517142, now seen corresponding path program 1 times [2022-11-20 12:10:42,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:42,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396269701] [2022-11-20 12:10:42,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:42,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:42,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 12:10:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:42,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:42,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396269701] [2022-11-20 12:10:42,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396269701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:42,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:42,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:42,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064811836] [2022-11-20 12:10:42,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:42,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:42,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:42,969 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:42,985 INFO L93 Difference]: Finished difference Result 100 states and 127 transitions. [2022-11-20 12:10:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:42,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-11-20 12:10:42,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:42,987 INFO L225 Difference]: With dead ends: 100 [2022-11-20 12:10:42,987 INFO L226 Difference]: Without dead ends: 60 [2022-11-20 12:10:42,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:42,989 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 17 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:42,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:42,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-20 12:10:42,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-20 12:10:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 53 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 12:10:42,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 76 transitions. [2022-11-20 12:10:42,997 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 76 transitions. Word has length 24 [2022-11-20 12:10:42,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:42,998 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 76 transitions. [2022-11-20 12:10:42,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:42,998 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 76 transitions. [2022-11-20 12:10:42,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-20 12:10:42,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:43,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:43,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:10:43,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:43,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:43,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1390976064, now seen corresponding path program 1 times [2022-11-20 12:10:43,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:43,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070050820] [2022-11-20 12:10:43,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:43,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:10:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:43,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:43,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070050820] [2022-11-20 12:10:43,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070050820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:43,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:43,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:43,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142176032] [2022-11-20 12:10:43,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:43,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:43,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:43,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:43,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:43,191 INFO L87 Difference]: Start difference. First operand 60 states and 76 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:43,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:43,431 INFO L93 Difference]: Finished difference Result 204 states and 266 transitions. [2022-11-20 12:10:43,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:10:43,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 28 [2022-11-20 12:10:43,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:43,434 INFO L225 Difference]: With dead ends: 204 [2022-11-20 12:10:43,434 INFO L226 Difference]: Without dead ends: 151 [2022-11-20 12:10:43,435 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 [2022-11-20 12:10:43,436 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 162 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:43,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 421 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:10:43,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-20 12:10:43,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 141. [2022-11-20 12:10:43,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 110 states have (on average 1.3636363636363635) internal successors, (150), 121 states have internal predecessors, (150), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-20 12:10:43,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 183 transitions. [2022-11-20 12:10:43,482 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 183 transitions. Word has length 28 [2022-11-20 12:10:43,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:43,483 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 183 transitions. [2022-11-20 12:10:43,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:43,483 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 183 transitions. [2022-11-20 12:10:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-20 12:10:43,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:43,485 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] [2022-11-20 12:10:43,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:10:43,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash -259101431, now seen corresponding path program 1 times [2022-11-20 12:10:43,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:43,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656467429] [2022-11-20 12:10:43,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:43,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-20 12:10:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-20 12:10:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:43,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:43,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656467429] [2022-11-20 12:10:43,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656467429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:43,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:43,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419626599] [2022-11-20 12:10:43,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:43,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:43,610 INFO L87 Difference]: Start difference. First operand 141 states and 183 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:43,679 INFO L93 Difference]: Finished difference Result 348 states and 460 transitions. [2022-11-20 12:10:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:43,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 33 [2022-11-20 12:10:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:43,685 INFO L225 Difference]: With dead ends: 348 [2022-11-20 12:10:43,686 INFO L226 Difference]: Without dead ends: 214 [2022-11-20 12:10:43,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:43,688 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:43,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 126 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:43,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-11-20 12:10:43,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 212. [2022-11-20 12:10:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.3312883435582823) internal successors, (217), 176 states have internal predecessors, (217), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2022-11-20 12:10:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 271 transitions. [2022-11-20 12:10:43,742 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 271 transitions. Word has length 33 [2022-11-20 12:10:43,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:43,742 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 271 transitions. [2022-11-20 12:10:43,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 271 transitions. [2022-11-20 12:10:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 12:10:43,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:43,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:43,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:10:43,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1332609653, now seen corresponding path program 1 times [2022-11-20 12:10:43,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:43,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479710550] [2022-11-20 12:10:43,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-20 12:10:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:43,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:43,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479710550] [2022-11-20 12:10:43,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479710550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:43,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:43,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:10:43,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908665389] [2022-11-20 12:10:43,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:43,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:10:43,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:43,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:10:43,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:10:43,942 INFO L87 Difference]: Start difference. First operand 212 states and 271 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:44,038 INFO L93 Difference]: Finished difference Result 229 states and 293 transitions. [2022-11-20 12:10:44,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:10:44,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-20 12:10:44,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:44,049 INFO L225 Difference]: With dead ends: 229 [2022-11-20 12:10:44,049 INFO L226 Difference]: Without dead ends: 227 [2022-11-20 12:10:44,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:10:44,058 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 49 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:44,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 292 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:44,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-20 12:10:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 212. [2022-11-20 12:10:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 163 states have (on average 1.312883435582822) internal successors, (214), 176 states have internal predecessors, (214), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2022-11-20 12:10:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 268 transitions. [2022-11-20 12:10:44,116 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 268 transitions. Word has length 32 [2022-11-20 12:10:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:44,117 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 268 transitions. [2022-11-20 12:10:44,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 268 transitions. [2022-11-20 12:10:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:10:44,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:44,119 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] [2022-11-20 12:10:44,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:10:44,120 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:44,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:44,121 INFO L85 PathProgramCache]: Analyzing trace with hash -657649864, now seen corresponding path program 1 times [2022-11-20 12:10:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:44,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289487044] [2022-11-20 12:10:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:10:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:44,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:44,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289487044] [2022-11-20 12:10:44,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289487044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:44,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:44,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 12:10:44,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924098211] [2022-11-20 12:10:44,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:44,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:10:44,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:44,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:10:44,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:10:44,245 INFO L87 Difference]: Start difference. First operand 212 states and 268 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:44,328 INFO L93 Difference]: Finished difference Result 525 states and 687 transitions. [2022-11-20 12:10:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:10:44,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 12:10:44,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:44,335 INFO L225 Difference]: With dead ends: 525 [2022-11-20 12:10:44,336 INFO L226 Difference]: Without dead ends: 320 [2022-11-20 12:10:44,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:10:44,348 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 83 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:44,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 400 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:44,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-11-20 12:10:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 216. [2022-11-20 12:10:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 167 states have (on average 1.3053892215568863) internal successors, (218), 180 states have internal predecessors, (218), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2022-11-20 12:10:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 272 transitions. [2022-11-20 12:10:44,400 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 272 transitions. Word has length 37 [2022-11-20 12:10:44,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:44,403 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 272 transitions. [2022-11-20 12:10:44,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 272 transitions. [2022-11-20 12:10:44,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:10:44,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:44,409 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] [2022-11-20 12:10:44,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:10:44,410 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash 363418490, now seen corresponding path program 1 times [2022-11-20 12:10:44,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:44,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403598207] [2022-11-20 12:10:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:44,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:10:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:44,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:44,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403598207] [2022-11-20 12:10:44,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403598207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:44,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:44,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:10:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637383647] [2022-11-20 12:10:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:44,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:10:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:44,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:10:44,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:10:44,502 INFO L87 Difference]: Start difference. First operand 216 states and 272 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:44,595 INFO L93 Difference]: Finished difference Result 453 states and 581 transitions. [2022-11-20 12:10:44,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:10:44,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-20 12:10:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:44,598 INFO L225 Difference]: With dead ends: 453 [2022-11-20 12:10:44,598 INFO L226 Difference]: Without dead ends: 244 [2022-11-20 12:10:44,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:10:44,600 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 42 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:44,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 328 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:44,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-11-20 12:10:44,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 222. [2022-11-20 12:10:44,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 173 states have (on average 1.2947976878612717) internal successors, (224), 186 states have internal predecessors, (224), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2022-11-20 12:10:44,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2022-11-20 12:10:44,627 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 37 [2022-11-20 12:10:44,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:44,628 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2022-11-20 12:10:44,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,628 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2022-11-20 12:10:44,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-20 12:10:44,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:44,629 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] [2022-11-20 12:10:44,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:10:44,630 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:44,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:44,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1643172726, now seen corresponding path program 1 times [2022-11-20 12:10:44,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:44,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249554057] [2022-11-20 12:10:44,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:44,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:10:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:44,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:44,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249554057] [2022-11-20 12:10:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249554057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:44,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:44,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:10:44,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969099058] [2022-11-20 12:10:44,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:44,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:10:44,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:44,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:10:44,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:44,740 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:44,794 INFO L93 Difference]: Finished difference Result 552 states and 701 transitions. [2022-11-20 12:10:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:10:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 37 [2022-11-20 12:10:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:44,797 INFO L225 Difference]: With dead ends: 552 [2022-11-20 12:10:44,797 INFO L226 Difference]: Without dead ends: 337 [2022-11-20 12:10:44,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:10:44,800 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:44,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 143 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:10:44,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-20 12:10:44,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2022-11-20 12:10:44,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 263 states have (on average 1.2661596958174905) internal successors, (333), 279 states have internal predecessors, (333), 38 states have call successors, (38), 38 states have call predecessors, (38), 35 states have return successors, (45), 35 states have call predecessors, (45), 38 states have call successors, (45) [2022-11-20 12:10:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 416 transitions. [2022-11-20 12:10:44,848 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 416 transitions. Word has length 37 [2022-11-20 12:10:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:44,849 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 416 transitions. [2022-11-20 12:10:44,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 12:10:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 416 transitions. [2022-11-20 12:10:44,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-20 12:10:44,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:44,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:44,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:10:44,852 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1641270256, now seen corresponding path program 1 times [2022-11-20 12:10:44,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:44,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475267188] [2022-11-20 12:10:44,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:44,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-20 12:10:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:10:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:10:44,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:10:44,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:10:44,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475267188] [2022-11-20 12:10:44,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475267188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:10:44,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:10:44,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:10:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316485711] [2022-11-20 12:10:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:10:44,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:10:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:10:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:10:44,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:10:44,997 INFO L87 Difference]: Start difference. First operand 337 states and 416 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:45,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:10:45,336 INFO L93 Difference]: Finished difference Result 1177 states and 1492 transitions. [2022-11-20 12:10:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 12:10:45,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-20 12:10:45,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:10:45,341 INFO L225 Difference]: With dead ends: 1177 [2022-11-20 12:10:45,341 INFO L226 Difference]: Without dead ends: 847 [2022-11-20 12:10:45,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-20 12:10:45,343 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 121 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:10:45,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 364 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:10:45,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2022-11-20 12:10:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 801. [2022-11-20 12:10:45,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 624 states have (on average 1.2307692307692308) internal successors, (768), 673 states have internal predecessors, (768), 92 states have call successors, (92), 76 states have call predecessors, (92), 84 states have return successors, (128), 86 states have call predecessors, (128), 92 states have call successors, (128) [2022-11-20 12:10:45,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 988 transitions. [2022-11-20 12:10:45,446 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 988 transitions. Word has length 41 [2022-11-20 12:10:45,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:10:45,446 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 988 transitions. [2022-11-20 12:10:45,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 12:10:45,447 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 988 transitions. [2022-11-20 12:10:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-20 12:10:45,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:10:45,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:45,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:10:45,449 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:10:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:10:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash 958495308, now seen corresponding path program 1 times [2022-11-20 12:10:45,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:10:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902770426] [2022-11-20 12:10:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:10:45,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:10:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:10:45,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:10:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:10:45,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:10:45,494 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:10:45,495 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:10:45,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:10:45,500 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:10:45,504 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:10:45,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:10:45 BoogieIcfgContainer [2022-11-20 12:10:45,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:10:45,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:10:45,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:10:45,547 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:10:45,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:42" (3/4) ... [2022-11-20 12:10:45,549 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 12:10:45,605 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:10:45,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:10:45,606 INFO L158 Benchmark]: Toolchain (without parser) took 4674.01ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 86.4MB in the beginning and 69.7MB in the end (delta: 16.6MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,607 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:10:45,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.51ms. Allocated memory is still 132.1MB. Free memory was 86.4MB in the beginning and 68.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.25ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 142.9MB in the end (delta: -74.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,608 INFO L158 Benchmark]: Boogie Preprocessor took 35.07ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 141.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,608 INFO L158 Benchmark]: RCFGBuilder took 622.77ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 125.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,608 INFO L158 Benchmark]: TraceAbstraction took 3419.44ms. Allocated memory is still 174.1MB. Free memory was 125.2MB in the beginning and 75.0MB in the end (delta: 50.2MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,609 INFO L158 Benchmark]: Witness Printer took 59.40ms. Allocated memory is still 174.1MB. Free memory was 75.0MB in the beginning and 69.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:10:45,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.51ms. Allocated memory is still 132.1MB. Free memory was 86.4MB in the beginning and 68.1MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.25ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 68.1MB in the beginning and 142.9MB in the end (delta: -74.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.07ms. Allocated memory is still 174.1MB. Free memory was 142.9MB in the beginning and 141.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.77ms. Allocated memory is still 174.1MB. Free memory was 141.0MB in the beginning and 125.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3419.44ms. Allocated memory is still 174.1MB. Free memory was 125.2MB in the beginning and 75.0MB in the end (delta: 50.2MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * Witness Printer took 59.40ms. Allocated memory is still 174.1MB. Free memory was 75.0MB in the beginning and 69.7MB in the end (delta: 5.2MB). 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: 155]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L260] int pumpRunning = 0; [L261] int systemActive = 1; [L465] int cleanupTimeShifts = 4; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L539] int tmp ; [L543] FCALL select_helpers() [L544] FCALL select_features() [L545] CALL, EXPR valid_product() [L456] int retValue_acc ; [L459] retValue_acc = 1 [L460] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L545] RET, EXPR valid_product() [L545] tmp = valid_product() [L547] COND TRUE \read(tmp) [L549] FCALL setup() [L550] CALL runTest() [L532] CALL test() [L191] int splverifierCounter ; [L192] int tmp ; [L193] int tmp___0 ; [L194] int tmp___1 ; [L195] int tmp___2 ; [L198] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L200] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L202] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L208] tmp = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L212] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L212] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L218] tmp___0 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L222] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L87] COND FALSE !(\read(methaneLevelCritical)) [L90] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L222] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L228] tmp___2 = __VERIFIER_nondet_int() [L230] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=-1, waterLevel=2] [L245] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L267] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L274] COND TRUE \read(systemActive) [L276] CALL processEnvironment() [L296] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L299] COND TRUE ! pumpRunning [L301] CALL, EXPR isHighWaterLevel() [L393] int retValue_acc ; [L394] int tmp ; [L395] int tmp___0 ; [L399] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND FALSE !(waterLevel < 2) [L144] retValue_acc = 0 [L145] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L399] RET, EXPR isHighWaterSensorDry() [L399] tmp = isHighWaterSensorDry() [L401] COND FALSE !(\read(tmp)) [L404] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L406] retValue_acc = tmp___0 [L407] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L301] RET, EXPR isHighWaterLevel() [L301] tmp = isHighWaterLevel() [L303] COND TRUE \read(tmp) [L305] CALL activatePump() [L324] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L305] RET activatePump() [L276] RET processEnvironment() [L282] CALL __utac_acc__Specification1_spec__1() [L162] int tmp ; [L163] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L167] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L167] tmp = isMethaneLevelCritical() [L169] COND TRUE \read(tmp) [L171] CALL, EXPR isPumpRunning() [L348] int retValue_acc ; [L351] retValue_acc = pumpRunning [L352] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L171] RET, EXPR isPumpRunning() [L171] tmp___0 = isPumpRunning() [L173] COND TRUE \read(tmp___0) [L175] CALL __automaton_fail() [L155] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 576 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 561 mSDsluCounter, 2300 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1539 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 761 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=801occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 199 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 545 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-11-20 12:10:45,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a31fd53-fa15-4f64-b839-4e6e4002281b/bin/uautomizer-ug76WZFUDN/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