./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:34:33,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:34:33,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:34:33,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:34:33,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:34:33,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:34:33,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:34:33,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:34:33,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:34:33,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:34:33,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:34:33,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:34:33,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:34:33,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:34:33,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:34:33,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:34:33,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:34:33,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:34:33,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:34:33,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:34:33,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:34:33,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:34:33,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:34:33,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:34:34,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:34:34,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:34:34,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:34:34,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:34:34,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:34:34,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:34:34,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:34:34,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:34:34,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:34:34,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:34:34,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:34:34,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:34:34,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:34:34,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:34:34,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:34:34,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:34:34,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:34:34,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:34:34,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:34:34,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:34:34,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:34:34,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:34:34,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:34:34,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:34:34,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:34:34,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:34:34,055 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:34:34,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:34:34,057 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:34:34,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:34:34,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:34:34,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:34:34,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:34:34,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:34:34,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:34:34,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:34:34,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:34:34,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:34:34,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:34:34,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:34:34,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:34:34,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:34:34,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:34,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:34:34,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:34:34,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:34:34,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:34:34,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:34:34,062 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:34:34,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:34:34,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:34:34,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5df7e7a530538a677becf014bfb990c6b0570c5e1058d85d7e78cec25f53253 [2022-11-20 10:34:34,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:34:34,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:34:34,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:34:34,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:34:34,449 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:34:34,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-11-20 10:34:37,552 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:34:37,797 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:34:37,798 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2022-11-20 10:34:37,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/data/06b745d1b/dff624177b2b437fa0f463a3d333fcbd/FLAGa6cfca991 [2022-11-20 10:34:37,825 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/data/06b745d1b/dff624177b2b437fa0f463a3d333fcbd [2022-11-20 10:34:37,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:34:37,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:34:37,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:37,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:34:37,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:34:37,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:37" (1/1) ... [2022-11-20 10:34:37,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d08e41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:37, skipping insertion in model container [2022-11-20 10:34:37,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:34:37" (1/1) ... [2022-11-20 10:34:37,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:34:37,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:34:38,313 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_03cf52ee-7490-426b-b94f-42d203afa435/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2022-11-20 10:34:38,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:38,333 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:34:38,433 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_03cf52ee-7490-426b-b94f-42d203afa435/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[19170,19183] [2022-11-20 10:34:38,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:34:38,469 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:34:38,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38 WrapperNode [2022-11-20 10:34:38,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:34:38,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:38,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:34:38,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:34:38,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,548 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 223 [2022-11-20 10:34:38,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:34:38,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:34:38,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:34:38,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:34:38,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:34:38,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:34:38,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:34:38,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:34:38,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (1/1) ... [2022-11-20 10:34:38,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:34:38,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:38,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:34:38,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:34:38,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:34:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 10:34:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 10:34:38,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 10:34:38,690 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 10:34:38,691 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 10:34:38,692 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 10:34:38,693 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-20 10:34:38,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-20 10:34:38,694 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 10:34:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 10:34:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 10:34:38,695 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 10:34:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:34:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 10:34:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 10:34:38,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:34:38,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:34:38,813 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:34:38,817 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:34:39,184 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:34:39,193 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:34:39,193 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 10:34:39,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:39 BoogieIcfgContainer [2022-11-20 10:34:39,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:34:39,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:34:39,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:34:39,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:34:39,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:34:37" (1/3) ... [2022-11-20 10:34:39,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765fa02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:39, skipping insertion in model container [2022-11-20 10:34:39,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:34:38" (2/3) ... [2022-11-20 10:34:39,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765fa02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:34:39, skipping insertion in model container [2022-11-20 10:34:39,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:39" (3/3) ... [2022-11-20 10:34:39,206 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2022-11-20 10:34:39,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:34:39,229 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:34:39,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:34:39,294 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;@5df0f16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:34:39,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:34:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-20 10:34:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 10:34:39,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:39,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:39,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:39,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1936540556, now seen corresponding path program 1 times [2022-11-20 10:34:39,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:39,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825711693] [2022-11-20 10:34:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:39,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:39,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-20 10:34:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:39,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:39,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825711693] [2022-11-20 10:34:39,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825711693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:39,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:39,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:34:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898124803] [2022-11-20 10:34:39,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:39,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:34:39,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:39,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:34:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:34:39,644 INFO L87 Difference]: Start difference. First operand has 94 states, 73 states have (on average 1.3835616438356164) internal successors, (101), 81 states have internal predecessors, (101), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:39,687 INFO L93 Difference]: Finished difference Result 179 states and 244 transitions. [2022-11-20 10:34:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:34:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-20 10:34:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:39,698 INFO L225 Difference]: With dead ends: 179 [2022-11-20 10:34:39,699 INFO L226 Difference]: Without dead ends: 85 [2022-11-20 10:34:39,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:34:39,707 INFO L413 NwaCegarLoop]: 119 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, 119 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:39,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:34:39,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-20 10:34:39,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-20 10:34:39,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 73 states have internal predecessors, (87), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 10:34:39,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2022-11-20 10:34:39,754 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 25 [2022-11-20 10:34:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:39,755 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2022-11-20 10:34:39,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2022-11-20 10:34:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 10:34:39,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:39,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:39,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:34:39,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:39,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash -433728910, now seen corresponding path program 1 times [2022-11-20 10:34:39,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:39,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513674732] [2022-11-20 10:34:39,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:39,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-20 10:34:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:39,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:39,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513674732] [2022-11-20 10:34:39,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513674732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:39,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:39,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:39,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703991183] [2022-11-20 10:34:39,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:39,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:39,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:39,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:39,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:39,945 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:39,968 INFO L93 Difference]: Finished difference Result 134 states and 174 transitions. [2022-11-20 10:34:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:39,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-20 10:34:39,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:39,970 INFO L225 Difference]: With dead ends: 134 [2022-11-20 10:34:39,970 INFO L226 Difference]: Without dead ends: 76 [2022-11-20 10:34:39,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:39,973 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:39,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:34:39,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-20 10:34:39,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-20 10:34:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3333333333333333) internal successors, (80), 67 states have internal predecessors, (80), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 10:34:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2022-11-20 10:34:39,987 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 26 [2022-11-20 10:34:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:39,988 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2022-11-20 10:34:39,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:39,988 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2022-11-20 10:34:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-20 10:34:39,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:39,990 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] [2022-11-20 10:34:39,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:34:39,990 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:39,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:39,991 INFO L85 PathProgramCache]: Analyzing trace with hash -960870689, now seen corresponding path program 1 times [2022-11-20 10:34:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:39,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968139686] [2022-11-20 10:34:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:40,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:40,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968139686] [2022-11-20 10:34:40,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968139686] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:40,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:40,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:40,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569738726] [2022-11-20 10:34:40,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:40,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:40,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:40,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:40,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:40,231 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:40,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:40,324 INFO L93 Difference]: Finished difference Result 144 states and 189 transitions. [2022-11-20 10:34:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:34:40,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2022-11-20 10:34:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:40,327 INFO L225 Difference]: With dead ends: 144 [2022-11-20 10:34:40,327 INFO L226 Difference]: Without dead ends: 76 [2022-11-20 10:34:40,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:34:40,329 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 125 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:40,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 239 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:34:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-20 10:34:40,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-20 10:34:40,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 67 states have internal predecessors, (79), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 10:34:40,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2022-11-20 10:34:40,346 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 31 [2022-11-20 10:34:40,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:40,346 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2022-11-20 10:34:40,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:40,347 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2022-11-20 10:34:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-20 10:34:40,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:40,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:40,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:34:40,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1051649323, now seen corresponding path program 1 times [2022-11-20 10:34:40,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:40,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531794168] [2022-11-20 10:34:40,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:40,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-20 10:34:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:40,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:40,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531794168] [2022-11-20 10:34:40,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531794168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:40,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:40,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:34:40,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813966862] [2022-11-20 10:34:40,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:40,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:40,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:40,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:40,520 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:40,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:40,568 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2022-11-20 10:34:40,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:40,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 39 [2022-11-20 10:34:40,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:40,570 INFO L225 Difference]: With dead ends: 189 [2022-11-20 10:34:40,571 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 10:34:40,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:34:40,573 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 60 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:40,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 173 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:34:40,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 10:34:40,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2022-11-20 10:34:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 101 states have internal predecessors, (121), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2022-11-20 10:34:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 151 transitions. [2022-11-20 10:34:40,597 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 151 transitions. Word has length 39 [2022-11-20 10:34:40,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:40,598 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 151 transitions. [2022-11-20 10:34:40,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 10:34:40,598 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 151 transitions. [2022-11-20 10:34:40,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 10:34:40,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:40,600 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, 1] [2022-11-20 10:34:40,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:34:40,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:40,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1776043399, now seen corresponding path program 1 times [2022-11-20 10:34:40,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:40,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451047330] [2022-11-20 10:34:40,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 10:34:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:40,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:40,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:40,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451047330] [2022-11-20 10:34:40,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451047330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:40,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:40,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:40,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829704129] [2022-11-20 10:34:40,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:40,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:40,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:40,745 INFO L87 Difference]: Start difference. First operand 119 states and 151 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:34:41,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:41,005 INFO L93 Difference]: Finished difference Result 273 states and 359 transitions. [2022-11-20 10:34:41,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:34:41,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-11-20 10:34:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:41,008 INFO L225 Difference]: With dead ends: 273 [2022-11-20 10:34:41,013 INFO L226 Difference]: Without dead ends: 162 [2022-11-20 10:34:41,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:34:41,016 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 92 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:41,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 289 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:34:41,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-20 10:34:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 145. [2022-11-20 10:34:41,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.2982456140350878) internal successors, (148), 122 states have internal predecessors, (148), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-20 10:34:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 185 transitions. [2022-11-20 10:34:41,064 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 185 transitions. Word has length 47 [2022-11-20 10:34:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:41,064 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 185 transitions. [2022-11-20 10:34:41,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:34:41,065 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 185 transitions. [2022-11-20 10:34:41,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 10:34:41,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:41,070 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, 1] [2022-11-20 10:34:41,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:34:41,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:41,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:41,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1353341573, now seen corresponding path program 1 times [2022-11-20 10:34:41,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:41,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155443178] [2022-11-20 10:34:41,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:41,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-20 10:34:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:34:41,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:41,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155443178] [2022-11-20 10:34:41,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155443178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:41,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:41,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:34:41,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362258254] [2022-11-20 10:34:41,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:41,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:34:41,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:41,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:34:41,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:34:41,207 INFO L87 Difference]: Start difference. First operand 145 states and 185 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:34:41,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:41,446 INFO L93 Difference]: Finished difference Result 294 states and 376 transitions. [2022-11-20 10:34:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:34:41,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2022-11-20 10:34:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:41,453 INFO L225 Difference]: With dead ends: 294 [2022-11-20 10:34:41,454 INFO L226 Difference]: Without dead ends: 157 [2022-11-20 10:34:41,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:34:41,459 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 116 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:41,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 399 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:34:41,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-20 10:34:41,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2022-11-20 10:34:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 120 states have internal predecessors, (142), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-20 10:34:41,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 179 transitions. [2022-11-20 10:34:41,512 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 179 transitions. Word has length 47 [2022-11-20 10:34:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:41,513 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 179 transitions. [2022-11-20 10:34:41,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-20 10:34:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 179 transitions. [2022-11-20 10:34:41,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:34:41,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:41,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:41,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:34:41,520 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:41,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1275147008, now seen corresponding path program 1 times [2022-11-20 10:34:41,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:41,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627007486] [2022-11-20 10:34:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:41,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:34:41,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:41,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:34:41,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:41,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627007486] [2022-11-20 10:34:41,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627007486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:41,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:41,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:34:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683483247] [2022-11-20 10:34:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:34:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:34:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:34:41,672 INFO L87 Difference]: Start difference. First operand 143 states and 179 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:34:41,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:41,849 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-11-20 10:34:41,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:34:41,850 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 53 [2022-11-20 10:34:41,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:41,853 INFO L225 Difference]: With dead ends: 288 [2022-11-20 10:34:41,853 INFO L226 Difference]: Without dead ends: 153 [2022-11-20 10:34:41,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-20 10:34:41,856 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 66 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:41,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 369 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 10:34:41,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-20 10:34:41,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2022-11-20 10:34:41,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 123 states have internal predecessors, (145), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2022-11-20 10:34:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 182 transitions. [2022-11-20 10:34:41,899 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 182 transitions. Word has length 53 [2022-11-20 10:34:41,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:41,901 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 182 transitions. [2022-11-20 10:34:41,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 10:34:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 182 transitions. [2022-11-20 10:34:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-20 10:34:41,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:41,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:41,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:34:41,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:41,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:41,910 INFO L85 PathProgramCache]: Analyzing trace with hash 2034284420, now seen corresponding path program 1 times [2022-11-20 10:34:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:41,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275600512] [2022-11-20 10:34:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-20 10:34:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:34:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:42,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275600512] [2022-11-20 10:34:42,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275600512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:42,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:42,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:34:42,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653534080] [2022-11-20 10:34:42,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:42,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:34:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:34:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:34:42,042 INFO L87 Difference]: Start difference. First operand 146 states and 182 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:34:42,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:42,337 INFO L93 Difference]: Finished difference Result 404 states and 525 transitions. [2022-11-20 10:34:42,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:34:42,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 53 [2022-11-20 10:34:42,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:42,340 INFO L225 Difference]: With dead ends: 404 [2022-11-20 10:34:42,341 INFO L226 Difference]: Without dead ends: 266 [2022-11-20 10:34:42,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:34:42,342 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 191 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:42,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 310 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:34:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-20 10:34:42,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 264. [2022-11-20 10:34:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 204 states have (on average 1.2352941176470589) internal successors, (252), 216 states have internal predecessors, (252), 30 states have call successors, (30), 28 states have call predecessors, (30), 29 states have return successors, (49), 30 states have call predecessors, (49), 30 states have call successors, (49) [2022-11-20 10:34:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 331 transitions. [2022-11-20 10:34:42,381 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 331 transitions. Word has length 53 [2022-11-20 10:34:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:42,382 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 331 transitions. [2022-11-20 10:34:42,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-20 10:34:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 331 transitions. [2022-11-20 10:34:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-20 10:34:42,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:42,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:42,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:34:42,384 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:42,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:42,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1253719722, now seen corresponding path program 1 times [2022-11-20 10:34:42,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:42,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454838222] [2022-11-20 10:34:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:42,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:34:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:34:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-20 10:34:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:34:42,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:42,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454838222] [2022-11-20 10:34:42,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454838222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:42,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:42,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:34:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894077289] [2022-11-20 10:34:42,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:42,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:34:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:34:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:34:42,653 INFO L87 Difference]: Start difference. First operand 264 states and 331 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:34:43,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:43,493 INFO L93 Difference]: Finished difference Result 874 states and 1153 transitions. [2022-11-20 10:34:43,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-20 10:34:43,494 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2022-11-20 10:34:43,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:43,500 INFO L225 Difference]: With dead ends: 874 [2022-11-20 10:34:43,500 INFO L226 Difference]: Without dead ends: 618 [2022-11-20 10:34:43,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=720, Unknown=0, NotChecked=0, Total=930 [2022-11-20 10:34:43,504 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 376 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:43,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 566 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-20 10:34:43,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-11-20 10:34:43,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 569. [2022-11-20 10:34:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 435 states have (on average 1.2022988505747128) internal successors, (523), 465 states have internal predecessors, (523), 69 states have call successors, (69), 54 states have call predecessors, (69), 64 states have return successors, (132), 71 states have call predecessors, (132), 69 states have call successors, (132) [2022-11-20 10:34:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 724 transitions. [2022-11-20 10:34:43,588 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 724 transitions. Word has length 57 [2022-11-20 10:34:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:43,588 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 724 transitions. [2022-11-20 10:34:43,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 10:34:43,589 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 724 transitions. [2022-11-20 10:34:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-20 10:34:43,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:43,593 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:43,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:34:43,593 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:43,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:43,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1972813179, now seen corresponding path program 1 times [2022-11-20 10:34:43,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:43,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976448371] [2022-11-20 10:34:43,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:43,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:34:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:34:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:34:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:34:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-20 10:34:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:34:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-20 10:34:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 10:34:43,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:43,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976448371] [2022-11-20 10:34:43,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976448371] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:34:43,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314820787] [2022-11-20 10:34:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:43,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:34:43,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:43,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:34:43,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:34:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:43,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 10:34:43,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:34:44,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:34:44,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314820787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:44,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 10:34:44,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2022-11-20 10:34:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989653656] [2022-11-20 10:34:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:44,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:34:44,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:34:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:34:44,069 INFO L87 Difference]: Start difference. First operand 569 states and 724 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:34:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:44,159 INFO L93 Difference]: Finished difference Result 888 states and 1165 transitions. [2022-11-20 10:34:44,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:34:44,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 100 [2022-11-20 10:34:44,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:44,166 INFO L225 Difference]: With dead ends: 888 [2022-11-20 10:34:44,166 INFO L226 Difference]: Without dead ends: 886 [2022-11-20 10:34:44,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:34:44,168 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 45 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:44,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 191 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:34:44,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-11-20 10:34:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 802. [2022-11-20 10:34:44,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 613 states have (on average 1.2185970636215335) internal successors, (747), 658 states have internal predecessors, (747), 100 states have call successors, (100), 76 states have call predecessors, (100), 88 states have return successors, (220), 94 states have call predecessors, (220), 100 states have call successors, (220) [2022-11-20 10:34:44,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1067 transitions. [2022-11-20 10:34:44,277 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1067 transitions. Word has length 100 [2022-11-20 10:34:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:44,279 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 1067 transitions. [2022-11-20 10:34:44,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:34:44,279 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1067 transitions. [2022-11-20 10:34:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-20 10:34:44,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:44,293 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:44,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:44,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:34:44,500 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:44,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1133837867, now seen corresponding path program 1 times [2022-11-20 10:34:44,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:44,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22687459] [2022-11-20 10:34:44,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:44,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:34:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:34:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:34:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:34:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 10:34:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:34:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:34:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:34:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-20 10:34:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:34:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-20 10:34:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 59 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 10:34:45,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:45,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22687459] [2022-11-20 10:34:45,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22687459] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:34:45,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120246678] [2022-11-20 10:34:45,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:45,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:34:45,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:34:45,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:34:45,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:34:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:45,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 10:34:45,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:34:45,533 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 82 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 10:34:45,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:34:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-20 10:34:45,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120246678] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:34:45,881 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:34:45,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 18 [2022-11-20 10:34:45,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403980791] [2022-11-20 10:34:45,882 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:34:45,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:34:45,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:45,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:34:45,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:34:45,885 INFO L87 Difference]: Start difference. First operand 802 states and 1067 transitions. Second operand has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 10:34:48,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:48,908 INFO L93 Difference]: Finished difference Result 2582 states and 4324 transitions. [2022-11-20 10:34:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-11-20 10:34:48,909 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 142 [2022-11-20 10:34:48,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:48,926 INFO L225 Difference]: With dead ends: 2582 [2022-11-20 10:34:48,927 INFO L226 Difference]: Without dead ends: 1884 [2022-11-20 10:34:48,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 308 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=616, Invalid=1934, Unknown=0, NotChecked=0, Total=2550 [2022-11-20 10:34:48,938 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 1121 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:48,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 774 Invalid, 2552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-20 10:34:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-11-20 10:34:49,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1197. [2022-11-20 10:34:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 910 states have (on average 1.2076923076923076) internal successors, (1099), 969 states have internal predecessors, (1099), 150 states have call successors, (150), 125 states have call predecessors, (150), 136 states have return successors, (299), 140 states have call predecessors, (299), 150 states have call successors, (299) [2022-11-20 10:34:49,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1548 transitions. [2022-11-20 10:34:49,156 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1548 transitions. Word has length 142 [2022-11-20 10:34:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:49,157 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1548 transitions. [2022-11-20 10:34:49,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.11111111111111) internal successors, (146), 15 states have internal predecessors, (146), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-11-20 10:34:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1548 transitions. [2022-11-20 10:34:49,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-20 10:34:49,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:34:49,164 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:49,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:34:49,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:34:49,371 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:34:49,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:34:49,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1357031557, now seen corresponding path program 1 times [2022-11-20 10:34:49,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:34:49,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444844189] [2022-11-20 10:34:49,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:34:49,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:34:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-20 10:34:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-20 10:34:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 10:34:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:34:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-20 10:34:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 10:34:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-20 10:34:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-20 10:34:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:34:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:34:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-20 10:34:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-20 10:34:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:34:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-11-20 10:34:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:34:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-11-20 10:34:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:34:49,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444844189] [2022-11-20 10:34:49,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444844189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:34:49,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:34:49,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:34:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094963949] [2022-11-20 10:34:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:34:49,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:34:49,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:34:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:34:49,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:34:49,622 INFO L87 Difference]: Start difference. First operand 1197 states and 1548 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:34:50,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:34:50,192 INFO L93 Difference]: Finished difference Result 1652 states and 2094 transitions. [2022-11-20 10:34:50,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:34:50,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 146 [2022-11-20 10:34:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:34:50,194 INFO L225 Difference]: With dead ends: 1652 [2022-11-20 10:34:50,194 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 10:34:50,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2022-11-20 10:34:50,199 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 285 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:34:50,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 166 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 10:34:50,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 10:34:50,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 10:34:50,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:34:50,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 10:34:50,201 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 146 [2022-11-20 10:34:50,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:34:50,201 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 10:34:50,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-20 10:34:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 10:34:50,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 10:34:50,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 10:34:50,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:34:50,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 10:34:55,763 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2022-11-20 10:34:55,764 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2022-11-20 10:34:55,764 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 84 95) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or (not (= |old(~methaneLevelCritical~0)| 0)) .cse0 (not (<= 2 ~waterLevel~0)) .cse1 .cse2))) [2022-11-20 10:34:55,764 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2022-11-20 10:34:55,764 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2022-11-20 10:34:55,764 INFO L902 garLoopResultBuilder]: At program point L929(lines 904 933) the Hoare annotation is: true [2022-11-20 10:34:55,764 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 904 933) no Hoare annotation was computed. [2022-11-20 10:34:55,765 INFO L899 garLoopResultBuilder]: For program point L925(line 925) no Hoare annotation was computed. [2022-11-20 10:34:55,765 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 904 933) the Hoare annotation is: true [2022-11-20 10:34:55,765 INFO L899 garLoopResultBuilder]: For program point L918(lines 918 922) no Hoare annotation was computed. [2022-11-20 10:34:55,765 INFO L902 garLoopResultBuilder]: At program point L918-1(lines 918 922) the Hoare annotation is: true [2022-11-20 10:34:55,765 INFO L899 garLoopResultBuilder]: For program point L915(line 915) no Hoare annotation was computed. [2022-11-20 10:34:55,766 INFO L902 garLoopResultBuilder]: At program point L914-2(lines 914 928) the Hoare annotation is: true [2022-11-20 10:34:55,766 INFO L902 garLoopResultBuilder]: At program point L910(line 910) the Hoare annotation is: true [2022-11-20 10:34:55,766 INFO L899 garLoopResultBuilder]: For program point L910-1(line 910) no Hoare annotation was computed. [2022-11-20 10:34:55,766 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2022-11-20 10:34:55,766 INFO L899 garLoopResultBuilder]: For program point L609-1(lines 608 627) no Hoare annotation was computed. [2022-11-20 10:34:55,766 INFO L899 garLoopResultBuilder]: For program point L671(lines 671 679) no Hoare annotation was computed. [2022-11-20 10:34:55,767 INFO L895 garLoopResultBuilder]: At program point L64-2(lines 60 71) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-20 10:34:55,767 INFO L899 garLoopResultBuilder]: For program point L667(lines 667 684) no Hoare annotation was computed. [2022-11-20 10:34:55,767 INFO L895 garLoopResultBuilder]: At program point L812(lines 797 815) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~methAndRunningLastTime~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-20 10:34:55,768 INFO L895 garLoopResultBuilder]: At program point L841(line 841) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0)) (.cse7 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse1 (or (and .cse0 .cse7 .cse5) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse7 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) .cse5)))) (or (and .cse0 .cse1) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|) .cse1) .cse2 (and .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 (and .cse3 .cse4 .cse8) .cse6 (and .cse7 .cse8 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)))))) [2022-11-20 10:34:55,768 INFO L899 garLoopResultBuilder]: For program point L841-1(line 841) no Hoare annotation was computed. [2022-11-20 10:34:55,768 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 605 628) no Hoare annotation was computed. [2022-11-20 10:34:55,769 INFO L895 garLoopResultBuilder]: At program point L738(lines 733 741) the Hoare annotation is: (let ((.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_isPumpRunning_#res#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) .cse4) (or .cse1 .cse5 .cse4 .cse6) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (let ((.cse8 (let ((.cse9 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse10 (not .cse4))) (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 .cse3 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) .cse9 .cse10) (and .cse7 .cse2 .cse3 .cse9 .cse10))))) (or .cse1 (and .cse7 .cse8) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) .cse8 (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse4 .cse6))) (or .cse0 .cse1 .cse5 .cse4))) [2022-11-20 10:34:55,769 INFO L895 garLoopResultBuilder]: At program point L156(lines 151 159) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~methAndRunningLastTime~0 0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 10:34:55,769 INFO L895 garLoopResultBuilder]: At program point L677(line 677) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 10:34:55,769 INFO L895 garLoopResultBuilder]: At program point L719(lines 714 721) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-11-20 10:34:55,770 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 857) no Hoare annotation was computed. [2022-11-20 10:34:55,770 INFO L899 garLoopResultBuilder]: For program point L1004(line 1004) no Hoare annotation was computed. [2022-11-20 10:34:55,770 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 860) no Hoare annotation was computed. [2022-11-20 10:34:55,770 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 10:34:55,771 INFO L895 garLoopResultBuilder]: At program point L843-1(lines 835 863) the Hoare annotation is: (let ((.cse10 (= ~methaneLevelCritical~0 0))) (let ((.cse5 (<= 2 ~waterLevel~0)) (.cse9 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (not .cse10)) (.cse8 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~9#1| 0)) (.cse6 (= 0 ~systemActive~0))) (and (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (and .cse5 .cse4) .cse6)) (or .cse1 .cse7 .cse8 .cse6 .cse9) (let ((.cse13 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse11 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse12 (let ((.cse14 (not .cse6))) (or (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse2 .cse3 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) .cse11 .cse14) (and .cse13 .cse2 .cse3 .cse11 .cse14))))) (or .cse1 (and .cse3 .cse10 .cse5 .cse11) (and .cse12 .cse13) .cse6 (and .cse12 (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse9))) (or .cse0 .cse1 .cse7 .cse8 .cse6)))) [2022-11-20 10:34:55,771 INFO L895 garLoopResultBuilder]: At program point L682-1(lines 663 687) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0)) (.cse7 (= ~pumpRunning~0 0))) (and (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (let ((.cse1 (or (and .cse0 .cse7 .cse5) (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse7 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) .cse5)))) (or (and .cse0 .cse1) (and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|) .cse1) .cse2 (and .cse3 .cse4 .cse5) .cse6 (not (<= 2 |old(~waterLevel~0)|))))) (let ((.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 (and .cse3 .cse4 .cse8) .cse6 (and .cse7 .cse8 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)))))) [2022-11-20 10:34:55,771 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 616 622) no Hoare annotation was computed. [2022-11-20 10:34:55,771 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 810) no Hoare annotation was computed. [2022-11-20 10:34:55,771 INFO L899 garLoopResultBuilder]: For program point L806-2(lines 806 810) no Hoare annotation was computed. [2022-11-20 10:34:55,772 INFO L899 garLoopResultBuilder]: For program point L848(lines 848 854) no Hoare annotation was computed. [2022-11-20 10:34:55,772 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 605 628) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 (and (= ~pumpRunning~0 0) .cse2 .cse3)) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3) .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 10:34:55,772 INFO L895 garLoopResultBuilder]: At program point L1005(lines 1000 1007) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 10:34:55,772 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 605 628) no Hoare annotation was computed. [2022-11-20 10:34:55,772 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2022-11-20 10:34:55,773 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 96 104) the Hoare annotation is: true [2022-11-20 10:34:55,773 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 96 104) no Hoare annotation was computed. [2022-11-20 10:34:55,773 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 96 104) no Hoare annotation was computed. [2022-11-20 10:34:55,773 INFO L895 garLoopResultBuilder]: At program point L832(lines 827 834) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-11-20 10:34:55,773 INFO L895 garLoopResultBuilder]: At program point L890(lines 886 892) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-20 10:34:55,774 INFO L899 garLoopResultBuilder]: For program point L560(lines 560 566) no Hoare annotation was computed. [2022-11-20 10:34:55,774 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 560 566) no Hoare annotation was computed. [2022-11-20 10:34:55,774 INFO L902 garLoopResultBuilder]: At program point L973(lines 965 975) the Hoare annotation is: true [2022-11-20 10:34:55,774 INFO L895 garLoopResultBuilder]: At program point L585(lines 540 587) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-20 10:34:55,774 INFO L895 garLoopResultBuilder]: At program point L552(line 552) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-20 10:34:55,774 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 10:34:55,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 10:34:55,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 10:34:55,775 INFO L899 garLoopResultBuilder]: For program point L986(lines 986 993) no Hoare annotation was computed. [2022-11-20 10:34:55,775 INFO L899 garLoopResultBuilder]: For program point L986-2(lines 986 993) no Hoare annotation was computed. [2022-11-20 10:34:55,775 INFO L895 garLoopResultBuilder]: At program point L821(lines 816 823) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4))) [2022-11-20 10:34:55,776 INFO L895 garLoopResultBuilder]: At program point L883(lines 879 885) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-20 10:34:55,776 INFO L902 garLoopResultBuilder]: At program point L995(lines 976 998) the Hoare annotation is: true [2022-11-20 10:34:55,776 INFO L895 garLoopResultBuilder]: At program point L962(lines 958 964) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~10#1| 1) (not (= 0 ~systemActive~0))) [2022-11-20 10:34:55,776 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 582) no Hoare annotation was computed. [2022-11-20 10:34:55,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 10:34:55,776 INFO L895 garLoopResultBuilder]: At program point L578-2(lines 570 583) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4))) [2022-11-20 10:34:55,777 INFO L899 garLoopResultBuilder]: For program point L541(lines 540 587) no Hoare annotation was computed. [2022-11-20 10:34:55,777 INFO L899 garLoopResultBuilder]: For program point L570(lines 570 583) no Hoare annotation was computed. [2022-11-20 10:34:55,777 INFO L895 garLoopResultBuilder]: At program point L562(line 562) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~10#1| 1)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3 .cse4))) [2022-11-20 10:34:55,777 INFO L902 garLoopResultBuilder]: At program point L591(lines 530 595) the Hoare annotation is: true [2022-11-20 10:34:55,777 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 556) no Hoare annotation was computed. [2022-11-20 10:34:55,778 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 550 556) no Hoare annotation was computed. [2022-11-20 10:34:55,778 INFO L899 garLoopResultBuilder]: For program point L542(lines 542 546) no Hoare annotation was computed. [2022-11-20 10:34:55,778 INFO L895 garLoopResultBuilder]: At program point L588(lines 539 589) the Hoare annotation is: false [2022-11-20 10:34:55,778 INFO L895 garLoopResultBuilder]: At program point L898(lines 893 901) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2022-11-20 10:34:55,778 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 637 661) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse2 .cse3))) [2022-11-20 10:34:55,779 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 710) no Hoare annotation was computed. [2022-11-20 10:34:55,779 INFO L895 garLoopResultBuilder]: At program point L704-2(lines 697 713) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (let ((.cse3 (<= 2 ~waterLevel~0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse1 .cse3) .cse2 (and (= ~pumpRunning~0 0) .cse3 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_~tmp~6#1|) (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0)) .cse4)) (or .cse0 .cse2 .cse4))) [2022-11-20 10:34:55,779 INFO L895 garLoopResultBuilder]: At program point L793(lines 778 796) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse4 (= ~pumpRunning~0 0)) (.cse5 (not .cse2))) (let ((.cse1 (not (= ~waterLevel~0 0))) (.cse0 (and .cse3 .cse4 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) .cse5)) (.cse6 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (and .cse3 .cse4 .cse5) .cse1 .cse2 .cse6) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse3 .cse4 (<= 2 ~waterLevel~0) .cse5) .cse2 .cse6))))) [2022-11-20 10:34:55,779 INFO L895 garLoopResultBuilder]: At program point L729(lines 722 732) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (or .cse1 (= |processEnvironment__wrappee__highWaterSensor_isMethaneAlarm_#res#1| ~methaneLevelCritical~0))) .cse2 .cse3) (or .cse0 .cse2 .cse3))) [2022-11-20 10:34:55,780 INFO L895 garLoopResultBuilder]: At program point L727(line 727) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or .cse0 .cse1 .cse2) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) .cse1 .cse2))) [2022-11-20 10:34:55,780 INFO L899 garLoopResultBuilder]: For program point L727-1(line 727) no Hoare annotation was computed. [2022-11-20 10:34:55,780 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-11-20 10:34:55,780 INFO L899 garLoopResultBuilder]: For program point L787-2(lines 787 791) no Hoare annotation was computed. [2022-11-20 10:34:55,780 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2022-11-20 10:34:55,781 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (not .cse2))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 .cse3)))) [2022-11-20 10:34:55,781 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 653) no Hoare annotation was computed. [2022-11-20 10:34:55,781 INFO L899 garLoopResultBuilder]: For program point L641(lines 641 658) no Hoare annotation was computed. [2022-11-20 10:34:55,781 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 637 661) no Hoare annotation was computed. [2022-11-20 10:34:55,781 INFO L895 garLoopResultBuilder]: At program point L693(lines 688 695) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not .cse1) .cse2) (or .cse0 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse1 (<= 2 ~waterLevel~0)) .cse2 .cse3))) [2022-11-20 10:34:55,781 INFO L895 garLoopResultBuilder]: At program point L146(lines 137 150) the Hoare annotation is: (let ((.cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) (.cse4 (not (= ~waterLevel~0 0))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1) (and .cse0 (<= 2 ~waterLevel~0)) .cse2 .cse3) (or .cse4 (and .cse5 .cse0 .cse1) (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse4 (and .cse5 .cse0) .cse2 .cse3))) [2022-11-20 10:34:55,782 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse3))) [2022-11-20 10:34:55,782 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 637 661) no Hoare annotation was computed. [2022-11-20 10:34:55,782 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2022-11-20 10:34:55,782 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2022-11-20 10:34:55,782 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 72 83) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2))) [2022-11-20 10:34:55,786 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:34:55,788 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 10:34:55,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:34:55 BoogieIcfgContainer [2022-11-20 10:34:55,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 10:34:55,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:34:55,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:34:55,818 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:34:55,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:34:39" (3/4) ... [2022-11-20 10:34:55,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 10:34:55,828 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 10:34:55,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 10:34:55,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 10:34:55,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 10:34:55,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-20 10:34:55,829 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-20 10:34:55,830 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 10:34:55,836 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-20 10:34:55,836 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 10:34:55,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 10:34:55,837 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:34:55,838 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 10:34:55,863 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2022-11-20 10:34:55,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-11-20 10:34:55,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) [2022-11-20 10:34:55,864 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-11-20 10:34:55,865 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) [2022-11-20 10:34:55,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == \old(pumpRunning) && (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) <= waterLevel + 1) || (((\result == 0 && pumpRunning == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1))) || (((1 <= tmp && 1 <= \result) && 1 <= tmp___0) && (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) <= waterLevel + 1) || (((\result == 0 && pumpRunning == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)))) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) [2022-11-20 10:34:55,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((methAndRunningLastTime == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) [2022-11-20 10:34:55,866 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((((!(\old(methAndRunningLastTime) == 0) || (((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && \old(waterLevel) <= waterLevel + 1)) || (((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))) && pumpRunning == \old(pumpRunning))) || 0 == systemActive) || (((((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))) && 1 <= tmp) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) [2022-11-20 10:34:55,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= waterLevel) && (methaneLevelCritical == 0 || \result == methaneLevelCritical))) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-20 10:34:55,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || 0 == systemActive) && (((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && ((((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))))) || (((1 <= tmp && 1 <= \result) && ((((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)))) && 1 <= tmp___0)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) [2022-11-20 10:34:55,867 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) && (((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-20 10:34:55,868 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || 0 == systemActive) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp) && \result == methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-20 10:34:55,868 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 1)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 1)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(waterLevel == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-20 10:34:55,868 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-20 10:34:55,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(methAndRunningLastTime) == 0) || ((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) [2022-11-20 10:34:55,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) && ((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-20 10:34:55,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(methAndRunningLastTime == 0)) [2022-11-20 10:34:55,869 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) [2022-11-20 10:34:55,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:34:55,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:34:55,912 INFO L158 Benchmark]: Toolchain (without parser) took 18080.54ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 94.5MB in the beginning and 212.3MB in the end (delta: -117.8MB). Peak memory consumption was 136.4MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,912 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:34:55,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.91ms. Allocated memory is still 136.3MB. Free memory was 94.5MB in the beginning and 75.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.85ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,913 INFO L158 Benchmark]: Boogie Preprocessor took 46.18ms. Allocated memory is still 136.3MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,914 INFO L158 Benchmark]: RCFGBuilder took 599.75ms. Allocated memory is still 136.3MB. Free memory was 71.4MB in the beginning and 54.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,914 INFO L158 Benchmark]: TraceAbstraction took 16618.46ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 53.6MB in the beginning and 75.1MB in the end (delta: -21.5MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,914 INFO L158 Benchmark]: Witness Printer took 94.14ms. Allocated memory is still 243.3MB. Free memory was 75.1MB in the beginning and 212.3MB in the end (delta: -137.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:34:55,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.91ms. Allocated memory is still 136.3MB. Free memory was 94.5MB in the beginning and 75.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.85ms. Allocated memory is still 136.3MB. Free memory was 75.6MB in the beginning and 73.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.18ms. Allocated memory is still 136.3MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 599.75ms. Allocated memory is still 136.3MB. Free memory was 71.4MB in the beginning and 54.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16618.46ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 53.6MB in the beginning and 75.1MB in the end (delta: -21.5MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * Witness Printer took 94.14ms. Allocated memory is still 243.3MB. Free memory was 75.1MB in the beginning and 212.3MB in the end (delta: -137.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2530 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2490 mSDsluCounter, 3772 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2626 mSDsCounter, 944 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3721 IncrementalHoareTripleChecker+Invalid, 4665 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 944 mSolverCounterUnsat, 1146 mSDtfsCounter, 3721 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 664 GetRequests, 522 SyntacticMatches, 5 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1197occurred in iteration=11, InterpolantAutomatonStates: 128, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 862 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 1730 PreInvPairs, 2038 NumberOfFragments, 1850 HoareAnnotationTreeSize, 1730 FomulaSimplifications, 354 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 44 FomulaSimplificationsInter, 19091 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1008 NumberOfCodeBlocks, 1008 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1135 ConstructedInterpolants, 0 QuantifiedInterpolants, 2187 SizeOfPredicates, 4 NumberOfNonLiveVariables, 808 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 438/479 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 976]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && (((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 663]: Loop Invariant Derived loop invariant: ((((((pumpRunning == \old(pumpRunning) && (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) <= waterLevel + 1) || (((\result == 0 && pumpRunning == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1))) || (((1 <= tmp && 1 <= \result) && 1 <= tmp___0) && (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \old(waterLevel) <= waterLevel + 1) || (((\result == 0 && pumpRunning == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1)))) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && 2 <= waterLevel) && \old(waterLevel) == waterLevel)) || 0 == systemActive) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && ((((!(\old(pumpRunning) == 0) || (methaneLevelCritical == 0 && 2 <= waterLevel)) || 0 == systemActive) || (((pumpRunning == 0 && 2 <= waterLevel) && methaneLevelCritical == tmp) && \result == methaneLevelCritical)) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: ((((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || 0 == systemActive) && ((((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((((!(\old(methAndRunningLastTime) == 0) || (((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 2 <= waterLevel) && \old(waterLevel) <= waterLevel + 1)) || (((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))) && pumpRunning == \old(pumpRunning))) || 0 == systemActive) || (((((((((\result == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))) && 1 <= tmp) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) || 0 == systemActive) - InvariantResult [Line: 1000]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) && ((!(\old(methAndRunningLastTime) == 0) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 733]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel) && \old(methAndRunningLastTime) == methAndRunningLastTime)) || 0 == systemActive) && (((!(\old(methAndRunningLastTime) == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((((!(\old(methAndRunningLastTime) == 0) || (pumpRunning == \old(pumpRunning) && ((((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive))))) || (((1 <= tmp && 1 <= \result) && ((((((\result == 0 && pumpRunning == 0) && \result == 0) && tmp == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 0) && \old(waterLevel) <= waterLevel + 1) && !(0 == systemActive)))) && 1 <= tmp___0)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 904]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: (((((((((1 <= tmp && \result == 0) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 722]: Loop Invariant Derived loop invariant: (((!(waterLevel == 0) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= waterLevel) && (methaneLevelCritical == 0 || \result == methaneLevelCritical))) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((!(waterLevel == 0) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 797]: Loop Invariant Derived loop invariant: (((!(\old(methAndRunningLastTime) == 0) || ((((((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && tmp == 0) && 1 <= \result) && \old(waterLevel) <= waterLevel + 1) && 1 <= tmp___0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && \result == 1) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) || (((((methAndRunningLastTime == 0 && \result == 1) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && !(0 == systemActive)) - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && \result == 1) && waterLevel == 1) && tmp == 1) && !(0 == systemActive) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: (((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || 0 == systemActive) && (((!(\old(methAndRunningLastTime) == 0) || (((pumpRunning == \old(pumpRunning) && \result == 0) && methAndRunningLastTime == 0) && \old(waterLevel) <= waterLevel + 1)) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 1)) || (pumpRunning == 0 && 2 <= waterLevel)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 0) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && \result == 1)) || !(methaneLevelCritical == 0)) || 0 == systemActive)) && (((!(waterLevel == 0) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 778]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || !(methaneLevelCritical == 0)) || 0 == systemActive) && (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && !(0 == systemActive)) || !(waterLevel == 0)) || 0 == systemActive) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp___0 == 0) && \result == 0) && !(0 == systemActive))) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && 2 <= waterLevel) && !(0 == systemActive))) || 0 == systemActive) || !(methAndRunningLastTime == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-20 10:34:55,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03cf52ee-7490-426b-b94f-42d203afa435/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE