./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:57:06,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:57:06,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:57:06,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:57:06,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:57:06,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:57:06,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:57:06,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:57:06,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:57:06,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:57:06,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:57:06,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:57:06,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:57:06,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:57:06,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:57:06,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:57:06,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:57:06,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:57:06,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:57:06,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:57:06,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:57:06,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:57:06,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:57:06,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:57:06,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:57:06,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:57:06,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:57:06,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:57:06,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:57:06,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:57:06,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:57:06,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:57:06,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:57:06,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:57:06,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:57:06,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:57:06,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:57:06,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:57:06,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:57:06,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:57:06,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:57:06,460 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:57:06,473 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:57:06,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:57:06,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:57:06,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:57:06,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:57:06,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:57:06,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:57:06,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:57:06,480 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:57:06,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:57:06,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:57:06,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:57:06,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:57:06,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:57:06,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:57:06,483 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2022-12-13 14:57:06,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:57:06,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:57:06,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:57:06,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:57:06,672 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:57:06,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2022-12-13 14:57:09,192 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:57:09,347 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:57:09,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2022-12-13 14:57:09,355 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/data/058f8e332/f75589d762d045a5944e70efa826329f/FLAG51d6c3c5d [2022-12-13 14:57:09,366 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/data/058f8e332/f75589d762d045a5944e70efa826329f [2022-12-13 14:57:09,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:57:09,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:57:09,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:57:09,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:57:09,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:57:09,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b444c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09, skipping insertion in model container [2022-12-13 14:57:09,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:57:09,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:57:09,504 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_10dac9d8-7780-4c7d-8ed4-30931e581513/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2022-12-13 14:57:09,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:57:09,582 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:57:09,592 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_10dac9d8-7780-4c7d-8ed4-30931e581513/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2022-12-13 14:57:09,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:57:09,639 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:57:09,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09 WrapperNode [2022-12-13 14:57:09,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:57:09,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:57:09,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:57:09,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:57:09,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,670 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 171 [2022-12-13 14:57:09,670 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:57:09,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:57:09,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:57:09,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:57:09,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,686 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:57:09,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:57:09,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:57:09,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:57:09,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (1/1) ... [2022-12-13 14:57:09,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:57:09,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:57:09,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:57:09,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:57:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:57:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-13 14:57:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-13 14:57:09,748 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-13 14:57:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-13 14:57:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-13 14:57:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-13 14:57:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-13 14:57:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-13 14:57:09,749 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-13 14:57:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-13 14:57:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:57:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-13 14:57:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-13 14:57:09,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:57:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:57:09,809 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:57:09,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:57:10,007 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:57:10,012 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:57:10,013 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 14:57:10,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:57:10 BoogieIcfgContainer [2022-12-13 14:57:10,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:57:10,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:57:10,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:57:10,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:57:10,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:57:09" (1/3) ... [2022-12-13 14:57:10,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25723f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:57:10, skipping insertion in model container [2022-12-13 14:57:10,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:57:09" (2/3) ... [2022-12-13 14:57:10,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25723f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:57:10, skipping insertion in model container [2022-12-13 14:57:10,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:57:10" (3/3) ... [2022-12-13 14:57:10,021 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2022-12-13 14:57:10,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:57:10,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:57:10,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:57:10,074 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;@4beef223, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:57:10,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:57:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 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) [2022-12-13 14:57:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 14:57:10,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,084 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] [2022-12-13 14:57:10,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1839487273, now seen corresponding path program 1 times [2022-12-13 14:57:10,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805862632] [2022-12-13 14:57:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 14:57:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805862632] [2022-12-13 14:57:10,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805862632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:57:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374501997] [2022-12-13 14:57:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:57:10,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:57:10,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:57:10,250 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 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) [2022-12-13 14:57:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:10,275 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2022-12-13 14:57:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:57:10,277 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 [2022-12-13 14:57:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:10,285 INFO L225 Difference]: With dead ends: 150 [2022-12-13 14:57:10,285 INFO L226 Difference]: Without dead ends: 70 [2022-12-13 14:57:10,288 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 [2022-12-13 14:57:10,290 INFO L413 NwaCegarLoop]: 98 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, 98 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:10,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:10,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-13 14:57:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-12-13 14:57:10,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 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) [2022-12-13 14:57:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-12-13 14:57:10,322 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 23 [2022-12-13 14:57:10,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:10,322 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-12-13 14:57:10,323 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) [2022-12-13 14:57:10,323 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-12-13 14:57:10,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 14:57:10,324 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:57:10,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:57:10,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1995101318, now seen corresponding path program 1 times [2022-12-13 14:57:10,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181631902] [2022-12-13 14:57:10,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 14:57:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181631902] [2022-12-13 14:57:10,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181631902] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:57:10,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94069585] [2022-12-13 14:57:10,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:57:10,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:57:10,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:57:10,421 INFO L87 Difference]: Start difference. First operand 70 states and 89 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) [2022-12-13 14:57:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:10,431 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2022-12-13 14:57:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:57:10,432 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 [2022-12-13 14:57:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:10,433 INFO L225 Difference]: With dead ends: 101 [2022-12-13 14:57:10,433 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 14:57:10,433 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 [2022-12-13 14:57:10,434 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:10,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 14:57:10,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-13 14:57:10,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 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) [2022-12-13 14:57:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-12-13 14:57:10,441 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 24 [2022-12-13 14:57:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:10,441 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-12-13 14:57:10,441 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) [2022-12-13 14:57:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-12-13 14:57:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 14:57:10,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,442 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] [2022-12-13 14:57:10,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:57:10,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,443 INFO L85 PathProgramCache]: Analyzing trace with hash 613473394, now seen corresponding path program 1 times [2022-12-13 14:57:10,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245110978] [2022-12-13 14:57:10,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 14:57:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245110978] [2022-12-13 14:57:10,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245110978] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:57:10,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78421672] [2022-12-13 14:57:10,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:57:10,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:57:10,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:57:10,525 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-12-13 14:57:10,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:10,588 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2022-12-13 14:57:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:57:10,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 29 [2022-12-13 14:57:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:10,589 INFO L225 Difference]: With dead ends: 154 [2022-12-13 14:57:10,589 INFO L226 Difference]: Without dead ends: 100 [2022-12-13 14:57:10,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 14:57:10,591 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 145 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:10,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 264 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-12-13 14:57:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2022-12-13 14:57:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 82 states have internal predecessors, (101), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-12-13 14:57:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2022-12-13 14:57:10,603 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 29 [2022-12-13 14:57:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:10,603 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2022-12-13 14:57:10,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-12-13 14:57:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2022-12-13 14:57:10,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 14:57:10,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:57:10,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:57:10,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,613 INFO L85 PathProgramCache]: Analyzing trace with hash 2110247573, now seen corresponding path program 1 times [2022-12-13 14:57:10,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918109093] [2022-12-13 14:57:10,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 14:57:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918109093] [2022-12-13 14:57:10,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918109093] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:57:10,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389132888] [2022-12-13 14:57:10,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:57:10,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:57:10,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:57:10,702 INFO L87 Difference]: Start difference. First operand 95 states and 122 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) [2022-12-13 14:57:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:10,757 INFO L93 Difference]: Finished difference Result 228 states and 302 transitions. [2022-12-13 14:57:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:57:10,758 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 [2022-12-13 14:57:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:10,759 INFO L225 Difference]: With dead ends: 228 [2022-12-13 14:57:10,759 INFO L226 Difference]: Without dead ends: 140 [2022-12-13 14:57:10,760 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 [2022-12-13 14:57:10,761 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 50 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:10,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 296 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-13 14:57:10,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 131. [2022-12-13 14:57:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 110 states have internal predecessors, (132), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-12-13 14:57:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 164 transitions. [2022-12-13 14:57:10,777 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 164 transitions. Word has length 32 [2022-12-13 14:57:10,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:10,777 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 164 transitions. [2022-12-13 14:57:10,777 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) [2022-12-13 14:57:10,777 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 164 transitions. [2022-12-13 14:57:10,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 14:57:10,778 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,778 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] [2022-12-13 14:57:10,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:57:10,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,779 INFO L85 PathProgramCache]: Analyzing trace with hash -304840246, now seen corresponding path program 1 times [2022-12-13 14:57:10,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008093152] [2022-12-13 14:57:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 14:57:10,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008093152] [2022-12-13 14:57:10,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008093152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:57:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228052267] [2022-12-13 14:57:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 14:57:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 14:57:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 14:57:10,837 INFO L87 Difference]: Start difference. First operand 131 states and 164 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2022-12-13 14:57:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:10,881 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2022-12-13 14:57:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:57:10,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 38 [2022-12-13 14:57:10,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:10,883 INFO L225 Difference]: With dead ends: 269 [2022-12-13 14:57:10,883 INFO L226 Difference]: Without dead ends: 145 [2022-12-13 14:57:10,884 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 [2022-12-13 14:57:10,884 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 33 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 349 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 [2022-12-13 14:57:10,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 349 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-12-13 14:57:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 134. [2022-12-13 14:57:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 113 states have internal predecessors, (135), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-12-13 14:57:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2022-12-13 14:57:10,897 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 38 [2022-12-13 14:57:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:10,898 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2022-12-13 14:57:10,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2022-12-13 14:57:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2022-12-13 14:57:10,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 14:57:10,899 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:10,899 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] [2022-12-13 14:57:10,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:57:10,899 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:10,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:10,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1325908600, now seen corresponding path program 1 times [2022-12-13 14:57:10,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:10,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270261785] [2022-12-13 14:57:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:10,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 14:57:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:10,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:10,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270261785] [2022-12-13 14:57:10,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270261785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:10,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:10,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 14:57:10,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259774886] [2022-12-13 14:57:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:10,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:57:10,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:10,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:57:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:57:10,967 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-12-13 14:57:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:11,010 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-12-13 14:57:11,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 14:57:11,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 38 [2022-12-13 14:57:11,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:11,011 INFO L225 Difference]: With dead ends: 288 [2022-12-13 14:57:11,011 INFO L226 Difference]: Without dead ends: 161 [2022-12-13 14:57:11,012 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 [2022-12-13 14:57:11,013 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 382 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 [2022-12-13 14:57:11,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 382 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:11,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-13 14:57:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 136. [2022-12-13 14:57:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 107 states have (on average 1.280373831775701) internal successors, (137), 115 states have internal predecessors, (137), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-12-13 14:57:11,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 169 transitions. [2022-12-13 14:57:11,025 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 169 transitions. Word has length 38 [2022-12-13 14:57:11,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:11,026 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 169 transitions. [2022-12-13 14:57:11,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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) [2022-12-13 14:57:11,026 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 169 transitions. [2022-12-13 14:57:11,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 14:57:11,027 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:11,027 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] [2022-12-13 14:57:11,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:57:11,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:11,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash 974913990, now seen corresponding path program 1 times [2022-12-13 14:57:11,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:11,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753696412] [2022-12-13 14:57:11,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:11,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 14:57:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:11,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:11,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753696412] [2022-12-13 14:57:11,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753696412] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:11,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:11,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:57:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852734301] [2022-12-13 14:57:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:11,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:57:11,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:11,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:57:11,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:57:11,075 INFO L87 Difference]: Start difference. First operand 136 states and 169 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-13 14:57:11,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:11,096 INFO L93 Difference]: Finished difference Result 340 states and 431 transitions. [2022-12-13 14:57:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:57:11,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 38 [2022-12-13 14:57:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:11,097 INFO L225 Difference]: With dead ends: 340 [2022-12-13 14:57:11,097 INFO L226 Difference]: Without dead ends: 211 [2022-12-13 14:57:11,098 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 [2022-12-13 14:57:11,099 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 145 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 [2022-12-13 14:57:11,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 145 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:57:11,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-13 14:57:11,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-12-13 14:57:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2590361445783131) internal successors, (209), 176 states have internal predecessors, (209), 23 states have call successors, (23), 23 states have call predecessors, (23), 21 states have return successors, (28), 21 states have call predecessors, (28), 23 states have call successors, (28) [2022-12-13 14:57:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 260 transitions. [2022-12-13 14:57:11,116 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 260 transitions. Word has length 38 [2022-12-13 14:57:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:11,117 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 260 transitions. [2022-12-13 14:57:11,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-12-13 14:57:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 260 transitions. [2022-12-13 14:57:11,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 14:57:11,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:11,118 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] [2022-12-13 14:57:11,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:57:11,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:11,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:11,119 INFO L85 PathProgramCache]: Analyzing trace with hash -457608212, now seen corresponding path program 1 times [2022-12-13 14:57:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:11,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528393941] [2022-12-13 14:57:11,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:11,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 14:57:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 14:57:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:57:11,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:57:11,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:57:11,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528393941] [2022-12-13 14:57:11,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528393941] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:57:11,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:57:11,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 14:57:11,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218336912] [2022-12-13 14:57:11,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:57:11,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 14:57:11,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:57:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 14:57:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 14:57:11,222 INFO L87 Difference]: Start difference. First operand 211 states and 260 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-12-13 14:57:11,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:57:11,459 INFO L93 Difference]: Finished difference Result 712 states and 904 transitions. [2022-12-13 14:57:11,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 14:57:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 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 42 [2022-12-13 14:57:11,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:57:11,463 INFO L225 Difference]: With dead ends: 712 [2022-12-13 14:57:11,463 INFO L226 Difference]: Without dead ends: 508 [2022-12-13 14:57:11,464 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 [2022-12-13 14:57:11,465 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 121 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 14:57:11,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 370 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 14:57:11,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-12-13 14:57:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 481. [2022-12-13 14:57:11,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 376 states have (on average 1.2287234042553192) internal successors, (462), 405 states have internal predecessors, (462), 54 states have call successors, (54), 46 states have call predecessors, (54), 50 states have return successors, (77), 50 states have call predecessors, (77), 54 states have call successors, (77) [2022-12-13 14:57:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 593 transitions. [2022-12-13 14:57:11,531 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 593 transitions. Word has length 42 [2022-12-13 14:57:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:57:11,531 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 593 transitions. [2022-12-13 14:57:11,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 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) [2022-12-13 14:57:11,532 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 593 transitions. [2022-12-13 14:57:11,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 14:57:11,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:57:11,534 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, 1] [2022-12-13 14:57:11,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:57:11,535 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:57:11,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:57:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash -212622224, now seen corresponding path program 1 times [2022-12-13 14:57:11,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:57:11,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682075714] [2022-12-13 14:57:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:57:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:57:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:57:11,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:57:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:57:11,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:57:11,577 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:57:11,579 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 14:57:11,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 14:57:11,582 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:57:11,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:57:11,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:57:11 BoogieIcfgContainer [2022-12-13 14:57:11,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:57:11,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:57:11,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:57:11,625 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:57:11,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:57:10" (3/4) ... [2022-12-13 14:57:11,627 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 14:57:11,675 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 14:57:11,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:57:11,676 INFO L158 Benchmark]: Toolchain (without parser) took 2306.94ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 80.3MB in the beginning and 94.5MB in the end (delta: -14.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,676 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:57:11,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.99ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 61.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.91ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,677 INFO L158 Benchmark]: Boogie Preprocessor took 17.89ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 58.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:57:11,677 INFO L158 Benchmark]: RCFGBuilder took 325.48ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 58.3MB in the beginning and 120.7MB in the end (delta: -62.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,677 INFO L158 Benchmark]: TraceAbstraction took 1607.82ms. Allocated memory is still 151.0MB. Free memory was 120.1MB in the beginning and 98.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,678 INFO L158 Benchmark]: Witness Printer took 50.70ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:57:11,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.99ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 61.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.91ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 59.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.89ms. Allocated memory is still 117.4MB. Free memory was 59.6MB in the beginning and 58.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 325.48ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 58.3MB in the beginning and 120.7MB in the end (delta: -62.4MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1607.82ms. Allocated memory is still 151.0MB. Free memory was 120.1MB in the beginning and 98.7MB in the end (delta: 21.4MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 50.70ms. Allocated memory is still 151.0MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L354] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L356] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L362] tmp = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L366] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] COND TRUE waterLevel < 2 [L268] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L366] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L372] tmp___0 = __VERIFIER_nondet_int() [L374] 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] [L376] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methaneLevelCritical)) [L282] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L376] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L386] CALL startSystem() [L241] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L386] RET startSystem() [L401] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L107] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L110] COND TRUE ! pumpRunning [L112] CALL, EXPR isHighWaterLevel() [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; [L210] CALL, EXPR isHighWaterSensorDry() [L329] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L332] COND FALSE !(waterLevel < 2) [L336] retValue_acc = 0 [L337] 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] [L210] RET, EXPR isHighWaterSensorDry() [L210] tmp = isHighWaterSensorDry() [L212] COND FALSE !(\read(tmp)) [L215] 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] [L217] retValue_acc = tmp___0 [L218] 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] [L112] RET, EXPR isHighWaterLevel() [L112] tmp = isHighWaterLevel() [L114] COND TRUE \read(tmp) [L116] CALL activatePump() [L135] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L116] RET activatePump() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification1_spec__1() [L818] int tmp ; [L819] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] 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] [L823] 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] [L823] tmp = isMethaneLevelCritical() [L825] COND TRUE \read(tmp) [L827] CALL, EXPR isPumpRunning() [L159] int retValue_acc ; [L162] retValue_acc = pumpRunning [L163] 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] [L827] RET, EXPR isPumpRunning() [L827] tmp___0 = isPumpRunning() [L829] COND TRUE \read(tmp___0) [L831] CALL __automaton_fail() [L54] 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, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 500 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 485 mSDsluCounter, 2034 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1344 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 229 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 690 mSDtfsCounter, 229 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=8, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 77 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-13 14:57:11,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10dac9d8-7780-4c7d-8ed4-30931e581513/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE