./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a --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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d --- 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-b5237d8 [2022-11-21 17:17:22,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:17:22,607 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:17:22,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:17:22,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:17:22,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:17:22,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:17:22,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:17:22,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:17:22,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:17:22,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:17:22,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:17:22,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:17:22,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:17:22,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:17:22,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:17:22,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:17:22,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:17:22,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:17:22,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:17:22,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:17:22,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:17:22,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:17:22,696 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:17:22,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:17:22,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:17:22,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:17:22,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:17:22,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:17:22,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:17:22,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:17:22,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:17:22,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:17:22,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:17:22,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:17:22,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:17:22,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:17:22,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:17:22,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:17:22,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:17:22,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:17:22,723 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:17:22,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:17:22,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:17:22,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:17:22,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:17:22,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:17:22,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:17:22,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:17:22,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:17:22,769 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:17:22,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:17:22,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:17:22,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:17:22,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:17:22,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:17:22,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:17:22,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:17:22,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:17:22,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:17:22,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:17:22,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:17:22,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:17:22,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:17:22,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:17:22,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:17:22,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:17:22,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:17:22,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:17:22,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:17:22,776 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:17:22,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:17:22,776 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:17:22,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:17:22,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:17:22,777 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_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2022-11-21 17:17:23,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:17:23,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:17:23,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:17:23,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:17:23,084 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:17:23,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2022-11-21 17:17:26,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:17:26,311 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:17:26,312 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2022-11-21 17:17:26,330 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/data/bba3aea36/beeda1cec572470e89461c03be1a07bb/FLAGbb5b2c859 [2022-11-21 17:17:26,351 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/data/bba3aea36/beeda1cec572470e89461c03be1a07bb [2022-11-21 17:17:26,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:17:26,356 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:17:26,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:26,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:17:26,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:17:26,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:26,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc58221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26, skipping insertion in model container [2022-11-21 17:17:26,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:26,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:17:26,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:17:26,801 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_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2022-11-21 17:17:26,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:26,863 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:17:26,926 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_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2022-11-21 17:17:26,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:17:26,954 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:17:26,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26 WrapperNode [2022-11-21 17:17:26,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:17:26,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:26,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:17:26,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:17:26,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:26,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:26,999 INFO L138 Inliner]: procedures = 51, calls = 94, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 157 [2022-11-21 17:17:27,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:17:27,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:17:27,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:17:27,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:17:27,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:17:27,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:17:27,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:17:27,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:17:27,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (1/1) ... [2022-11-21 17:17:27,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:17:27,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:17:27,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:17:27,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:17:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:17:27,139 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-21 17:17:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-21 17:17:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-21 17:17:27,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-21 17:17:27,140 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-21 17:17:27,141 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-21 17:17:27,141 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 17:17:27,142 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-21 17:17:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-21 17:17:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-21 17:17:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:17:27,143 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-21 17:17:27,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-21 17:17:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:17:27,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:17:27,222 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:17:27,224 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:17:27,471 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:17:27,486 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:17:27,486 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:17:27,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:27 BoogieIcfgContainer [2022-11-21 17:17:27,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:17:27,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:17:27,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:17:27,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:17:27,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:17:26" (1/3) ... [2022-11-21 17:17:27,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424db239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:17:27, skipping insertion in model container [2022-11-21 17:17:27,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:17:26" (2/3) ... [2022-11-21 17:17:27,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@424db239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:17:27, skipping insertion in model container [2022-11-21 17:17:27,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:27" (3/3) ... [2022-11-21 17:17:27,512 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2022-11-21 17:17:27,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:17:27,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:17:27,647 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:17:27,654 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;@418cf57b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:17:27,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:17:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-21 17:17:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 17:17:27,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:27,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:27,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:27,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash -250715153, now seen corresponding path program 1 times [2022-11-21 17:17:27,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:27,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697248906] [2022-11-21 17:17:27,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:27,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:27,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697248906] [2022-11-21 17:17:27,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697248906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:27,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:27,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:17:27,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462803907] [2022-11-21 17:17:27,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:27,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:17:27,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:27,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:17:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:17:27,902 INFO L87 Difference]: Start difference. First operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:27,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:27,933 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2022-11-21 17:17:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:17:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-21 17:17:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:27,944 INFO L225 Difference]: With dead ends: 134 [2022-11-21 17:17:27,944 INFO L226 Difference]: Without dead ends: 62 [2022-11-21 17:17:27,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:17:27,952 INFO L413 NwaCegarLoop]: 87 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, 87 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 [2022-11-21 17:17:27,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:17:27,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-21 17:17:27,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-21 17:17:27,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.297872340425532) internal successors, (61), 52 states have internal predecessors, (61), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-21 17:17:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-21 17:17:27,995 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 19 [2022-11-21 17:17:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:27,996 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-21 17:17:27,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-21 17:17:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 17:17:27,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:27,999 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] [2022-11-21 17:17:27,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:17:27,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:28,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:28,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1134572943, now seen corresponding path program 1 times [2022-11-21 17:17:28,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:28,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770605631] [2022-11-21 17:17:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:28,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:28,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770605631] [2022-11-21 17:17:28,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770605631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:28,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:28,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:17:28,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396019611] [2022-11-21 17:17:28,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:28,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:17:28,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:28,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:17:28,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:28,215 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:28,231 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2022-11-21 17:17:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:17:28,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 17:17:28,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:28,233 INFO L225 Difference]: With dead ends: 90 [2022-11-21 17:17:28,233 INFO L226 Difference]: Without dead ends: 53 [2022-11-21 17:17:28,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:28,236 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 114 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 [2022-11-21 17:17:28,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:17:28,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-21 17:17:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-21 17:17:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-21 17:17:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2022-11-21 17:17:28,245 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 20 [2022-11-21 17:17:28,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:28,246 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2022-11-21 17:17:28,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:28,246 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-11-21 17:17:28,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 17:17:28,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:28,247 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:28,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:17:28,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1568040948, now seen corresponding path program 1 times [2022-11-21 17:17:28,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:28,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590972577] [2022-11-21 17:17:28,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:28,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:28,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590972577] [2022-11-21 17:17:28,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590972577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:28,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:28,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:17:28,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395019931] [2022-11-21 17:17:28,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:17:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:17:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:28,380 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:28,395 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2022-11-21 17:17:28,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:17:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-21 17:17:28,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:28,397 INFO L225 Difference]: With dead ends: 99 [2022-11-21 17:17:28,397 INFO L226 Difference]: Without dead ends: 53 [2022-11-21 17:17:28,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:28,400 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 64 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 [2022-11-21 17:17:28,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:17:28,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-21 17:17:28,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-21 17:17:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 46 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-21 17:17:28,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2022-11-21 17:17:28,413 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 24 [2022-11-21 17:17:28,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:28,413 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2022-11-21 17:17:28,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:17:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2022-11-21 17:17:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-21 17:17:28,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:28,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:28,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:17:28,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:28,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1290700286, now seen corresponding path program 1 times [2022-11-21 17:17:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:28,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178123377] [2022-11-21 17:17:28,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-21 17:17:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:28,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:28,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178123377] [2022-11-21 17:17:28,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178123377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:28,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:28,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:17:28,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406046779] [2022-11-21 17:17:28,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:28,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:17:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:28,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:17:28,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:17:28,577 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:17:28,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:28,662 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2022-11-21 17:17:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:17:28,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-11-21 17:17:28,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:28,665 INFO L225 Difference]: With dead ends: 138 [2022-11-21 17:17:28,665 INFO L226 Difference]: Without dead ends: 92 [2022-11-21 17:17:28,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:17:28,667 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 38 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:17:28,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 253 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:17:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-21 17:17:28,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-21 17:17:28,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 78 states have internal predecessors, (90), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-11-21 17:17:28,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2022-11-21 17:17:28,702 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 29 [2022-11-21 17:17:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:28,703 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2022-11-21 17:17:28,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:17:28,703 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2022-11-21 17:17:28,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-21 17:17:28,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:28,705 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] [2022-11-21 17:17:28,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:17:28,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:28,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1148145597, now seen corresponding path program 1 times [2022-11-21 17:17:28,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:28,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296455583] [2022-11-21 17:17:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-21 17:17:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:28,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:28,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296455583] [2022-11-21 17:17:28,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296455583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:28,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:28,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:17:28,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666231903] [2022-11-21 17:17:28,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:28,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:17:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:17:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:17:28,852 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (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) [2022-11-21 17:17:28,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:28,902 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2022-11-21 17:17:28,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:17:28,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (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 [2022-11-21 17:17:28,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:28,904 INFO L225 Difference]: With dead ends: 156 [2022-11-21 17:17:28,904 INFO L226 Difference]: Without dead ends: 71 [2022-11-21 17:17:28,905 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 [2022-11-21 17:17:28,907 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:17:28,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:17:28,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-21 17:17:28,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-21 17:17:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 59 states have internal predecessors, (68), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-21 17:17:28,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2022-11-21 17:17:28,921 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 31 [2022-11-21 17:17:28,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:28,921 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2022-11-21 17:17:28,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (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) [2022-11-21 17:17:28,922 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2022-11-21 17:17:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-21 17:17:28,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:17:28,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:17:28,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:17:28,924 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:17:28,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:17:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash 809516028, now seen corresponding path program 1 times [2022-11-21 17:17:28,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:17:28,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885000146] [2022-11-21 17:17:28,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:17:28,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:17:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:29,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 17:17:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-21 17:17:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:17:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:17:29,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:17:29,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885000146] [2022-11-21 17:17:29,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885000146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:17:29,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:17:29,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:17:29,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851343604] [2022-11-21 17:17:29,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:17:29,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:17:29,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:17:29,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:17:29,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:17:29,052 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:17:29,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:17:29,172 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2022-11-21 17:17:29,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:17:29,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-11-21 17:17:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:17:29,174 INFO L225 Difference]: With dead ends: 76 [2022-11-21 17:17:29,174 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 17:17:29,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:17:29,176 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 45 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:17:29,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 132 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:17:29,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 17:17:29,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 17:17:29,178 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) [2022-11-21 17:17:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 17:17:29,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-11-21 17:17:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:17:29,179 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 17:17:29,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-21 17:17:29,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 17:17:29,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 17:17:29,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:17:29,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:17:29,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 17:17:29,782 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2022-11-21 17:17:29,782 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-11-21 17:17:29,783 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-11-21 17:17:29,783 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2022-11-21 17:17:29,783 INFO L895 garLoopResultBuilder]: At program point L696(line 696) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,783 INFO L895 garLoopResultBuilder]: At program point L696-1(lines 677 701) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,783 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 645 668) no Hoare annotation was computed. [2022-11-21 17:17:29,784 INFO L895 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2022-11-21 17:17:29,784 INFO L895 garLoopResultBuilder]: At program point L507(lines 502 509) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,784 INFO L899 garLoopResultBuilder]: For program point L656-1(lines 656 662) no Hoare annotation was computed. [2022-11-21 17:17:29,784 INFO L895 garLoopResultBuilder]: At program point L751(lines 746 754) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-11-21 17:17:29,784 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 693) no Hoare annotation was computed. [2022-11-21 17:17:29,785 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 530) no Hoare annotation was computed. [2022-11-21 17:17:29,785 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 698) no Hoare annotation was computed. [2022-11-21 17:17:29,785 INFO L899 garLoopResultBuilder]: For program point L520(lines 520 533) no Hoare annotation was computed. [2022-11-21 17:17:29,785 INFO L895 garLoopResultBuilder]: At program point L520-1(lines 512 536) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-21 17:17:29,785 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-11-21 17:17:29,786 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,786 INFO L899 garLoopResultBuilder]: For program point L649-1(lines 648 667) no Hoare annotation was computed. [2022-11-21 17:17:29,786 INFO L895 garLoopResultBuilder]: At program point L732(lines 727 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,786 INFO L895 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,786 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 645 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,786 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-21 17:17:29,787 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 645 668) no Hoare annotation was computed. [2022-11-21 17:17:29,787 INFO L899 garLoopResultBuilder]: For program point L683-1(line 683) no Hoare annotation was computed. [2022-11-21 17:17:29,787 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2022-11-21 17:17:29,787 INFO L899 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2022-11-21 17:17:29,787 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 540 569) no Hoare annotation was computed. [2022-11-21 17:17:29,787 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 540 569) the Hoare annotation is: true [2022-11-21 17:17:29,788 INFO L902 garLoopResultBuilder]: At program point L565(lines 540 569) the Hoare annotation is: true [2022-11-21 17:17:29,788 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-11-21 17:17:29,788 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 558) no Hoare annotation was computed. [2022-11-21 17:17:29,788 INFO L902 garLoopResultBuilder]: At program point L554-1(lines 554 558) the Hoare annotation is: true [2022-11-21 17:17:29,788 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-21 17:17:29,788 INFO L902 garLoopResultBuilder]: At program point L550-2(lines 550 564) the Hoare annotation is: true [2022-11-21 17:17:29,793 INFO L902 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: true [2022-11-21 17:17:29,794 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 843) no Hoare annotation was computed. [2022-11-21 17:17:29,794 INFO L895 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:17:29,794 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 633) no Hoare annotation was computed. [2022-11-21 17:17:29,795 INFO L899 garLoopResultBuilder]: For program point L626-2(lines 626 633) no Hoare annotation was computed. [2022-11-21 17:17:29,795 INFO L895 garLoopResultBuilder]: At program point L845(lines 802 847) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:17:29,796 INFO L899 garLoopResultBuilder]: For program point L812(lines 812 818) no Hoare annotation was computed. [2022-11-21 17:17:29,796 INFO L899 garLoopResultBuilder]: For program point L812-1(lines 812 818) no Hoare annotation was computed. [2022-11-21 17:17:29,796 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 808) no Hoare annotation was computed. [2022-11-21 17:17:29,799 INFO L902 garLoopResultBuilder]: At program point L610(lines 603 612) the Hoare annotation is: true [2022-11-21 17:17:29,802 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 17:17:29,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 17:17:29,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 17:17:29,803 INFO L902 garLoopResultBuilder]: At program point L635(lines 616 638) the Hoare annotation is: true [2022-11-21 17:17:29,803 INFO L895 garLoopResultBuilder]: At program point L887(lines 882 890) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:17:29,804 INFO L895 garLoopResultBuilder]: At program point L879(lines 875 881) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:17:29,804 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2022-11-21 17:17:29,805 INFO L895 garLoopResultBuilder]: At program point L838-2(lines 832 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:17:29,805 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 17:17:29,806 INFO L895 garLoopResultBuilder]: At program point L599(lines 595 601) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:17:29,806 INFO L899 garLoopResultBuilder]: For program point L822(lines 822 828) no Hoare annotation was computed. [2022-11-21 17:17:29,807 INFO L899 garLoopResultBuilder]: For program point L822-1(lines 822 828) no Hoare annotation was computed. [2022-11-21 17:17:29,807 INFO L902 garLoopResultBuilder]: At program point L851(lines 792 855) the Hoare annotation is: true [2022-11-21 17:17:29,808 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-21 17:17:29,812 INFO L895 garLoopResultBuilder]: At program point L872(lines 868 874) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-21 17:17:29,812 INFO L895 garLoopResultBuilder]: At program point L848(lines 801 849) the Hoare annotation is: false [2022-11-21 17:17:29,812 INFO L899 garLoopResultBuilder]: For program point L803(lines 802 847) no Hoare annotation was computed. [2022-11-21 17:17:29,813 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-11-21 17:17:29,813 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-11-21 17:17:29,813 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-21 17:17:29,813 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 669 675) no Hoare annotation was computed. [2022-11-21 17:17:29,813 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 669 675) the Hoare annotation is: true [2022-11-21 17:17:29,814 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 735 745) the Hoare annotation is: true [2022-11-21 17:17:29,817 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 735 745) no Hoare annotation was computed. [2022-11-21 17:17:29,818 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 735 745) no Hoare annotation was computed. [2022-11-21 17:17:29,818 INFO L902 garLoopResultBuilder]: At program point L99(lines 94 102) the Hoare annotation is: true [2022-11-21 17:17:29,821 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 17:17:29,825 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:17:29,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:17:29 BoogieIcfgContainer [2022-11-21 17:17:29,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:17:29,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:17:29,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:17:29,853 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:17:29,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:17:27" (3/4) ... [2022-11-21 17:17:29,869 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:17:29,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-21 17:17:29,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-21 17:17:29,878 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-21 17:17:29,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-21 17:17:29,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-21 17:17:29,879 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-21 17:17:29,886 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-21 17:17:29,886 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 17:17:29,887 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:17:29,887 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:17:29,888 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:17:29,922 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-11-21 17:17:29,923 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) [2022-11-21 17:17:29,925 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2022-11-21 17:17:29,925 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-11-21 17:17:29,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2022-11-21 17:17:29,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-21 17:17:29,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-11-21 17:17:29,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:17:29,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:17:29,967 INFO L158 Benchmark]: Toolchain (without parser) took 3610.83ms. Allocated memory is still 192.9MB. Free memory was 159.5MB in the beginning and 138.9MB in the end (delta: 20.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,967 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 136.3MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:17:29,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 595.44ms. Allocated memory is still 192.9MB. Free memory was 159.5MB in the beginning and 141.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.46ms. Allocated memory is still 192.9MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,968 INFO L158 Benchmark]: Boogie Preprocessor took 52.70ms. Allocated memory is still 192.9MB. Free memory was 139.3MB in the beginning and 137.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,969 INFO L158 Benchmark]: RCFGBuilder took 434.37ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 123.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,969 INFO L158 Benchmark]: TraceAbstraction took 2361.55ms. Allocated memory is still 192.9MB. Free memory was 122.5MB in the beginning and 144.1MB in the end (delta: -21.6MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,970 INFO L158 Benchmark]: Witness Printer took 113.33ms. Allocated memory is still 192.9MB. Free memory was 144.1MB in the beginning and 138.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:17:29,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 136.3MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 595.44ms. Allocated memory is still 192.9MB. Free memory was 159.5MB in the beginning and 141.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.46ms. Allocated memory is still 192.9MB. Free memory was 141.4MB in the beginning and 139.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.70ms. Allocated memory is still 192.9MB. Free memory was 139.3MB in the beginning and 137.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.37ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 123.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2361.55ms. Allocated memory is still 192.9MB. Free memory was 122.5MB in the beginning and 144.1MB in the end (delta: -21.6MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Witness Printer took 113.33ms. Allocated memory is still 192.9MB. Free memory was 144.1MB in the beginning and 138.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 506]: 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 7 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 180 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 176 mSDsluCounter, 696 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 329 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 367 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 183 PreInvPairs, 205 NumberOfFragments, 301 HoareAnnotationTreeSize, 183 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 33 FomulaSimplificationsInter, 378 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-11-21 17:17:30,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9630fe21-36d3-41fd-9f89-3ea6d3af8c3d/bin/uautomizer-vX5HgA9Q3a/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