./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a64b003b731919e31189fa64bb054d2c00bb1b0f73ef780cb3fb445d82092416 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 13:13:34,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:13:34,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:13:34,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:13:34,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:13:34,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:13:34,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:13:34,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:13:34,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:13:34,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:13:34,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:13:34,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:13:34,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:13:34,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:13:34,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:13:34,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:13:34,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:13:34,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:13:34,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:13:34,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:13:34,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:13:34,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:13:34,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:13:34,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:13:34,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:13:34,666 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:13:34,666 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:13:34,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:13:34,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:13:34,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:13:34,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:13:34,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:13:34,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:13:34,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:13:34,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:13:34,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:13:34,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:13:34,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:13:34,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:13:34,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:13:34,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:13:34,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:13:34,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:13:34,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:13:34,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:13:34,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:13:34,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:13:34,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:13:34,700 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:13:34,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:13:34,700 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:13:34,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:13:34,701 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:13:34,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:13:34,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:13:34,701 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:13:34,701 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:13:34,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:13:34,702 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:13:34,702 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:13:34,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:13:34,703 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:13:34,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:13:34,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:13:34,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:13:34,705 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:13:34,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:13:34,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:13:34,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:13:34,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:13:34,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:13:34,706 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:13:34,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:13:34,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:13:34,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:13:34,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:13:34,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:13:34,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:13:34,707 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_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a64b003b731919e31189fa64bb054d2c00bb1b0f73ef780cb3fb445d82092416 [2022-12-14 13:13:34,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:13:34,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:13:34,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:13:34,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:13:34,936 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:13:34,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2022-12-14 13:13:37,489 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:13:37,643 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:13:37,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2022-12-14 13:13:37,651 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/data/fa03d8c6b/8fa41ab9c68b4db4a725fb03c8ce3910/FLAG384cff132 [2022-12-14 13:13:37,661 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/data/fa03d8c6b/8fa41ab9c68b4db4a725fb03c8ce3910 [2022-12-14 13:13:37,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:13:37,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:13:37,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:13:37,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:13:37,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:13:37,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781defcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37, skipping insertion in model container [2022-12-14 13:13:37,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:13:37,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:13:37,805 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_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2022-12-14 13:13:37,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:13:37,879 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:13:37,889 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_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c[1605,1618] [2022-12-14 13:13:37,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:13:37,937 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:13:37,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37 WrapperNode [2022-12-14 13:13:37,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:13:37,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:13:37,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:13:37,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:13:37,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,969 INFO L138 Inliner]: procedures = 51, calls = 95, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 160 [2022-12-14 13:13:37,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:13:37,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:13:37,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:13:37,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:13:37,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:13:37,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:13:37,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:13:37,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:13:37,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (1/1) ... [2022-12-14 13:13:37,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:13:38,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:13:38,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:13:38,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:13:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:13:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 13:13:38,048 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 13:13:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:13:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 13:13:38,049 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 13:13:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:13:38,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:13:38,107 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:13:38,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:13:38,281 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:13:38,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:13:38,345 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 13:13:38,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:38 BoogieIcfgContainer [2022-12-14 13:13:38,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:13:38,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:13:38,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:13:38,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:13:38,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:13:37" (1/3) ... [2022-12-14 13:13:38,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3c1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:13:38, skipping insertion in model container [2022-12-14 13:13:38,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:13:37" (2/3) ... [2022-12-14 13:13:38,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a3c1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:13:38, skipping insertion in model container [2022-12-14 13:13:38,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:38" (3/3) ... [2022-12-14 13:13:38,353 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2022-12-14 13:13:38,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:13:38,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:13:38,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:13:38,407 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=FINITE_AUTOMATA, 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;@1738e1aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:13:38,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:13:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 13:13:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 13:13:38,417 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:13:38,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:13:38,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:13:38,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:13:38,421 INFO L85 PathProgramCache]: Analyzing trace with hash 234426945, now seen corresponding path program 1 times [2022-12-14 13:13:38,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:13:38,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831391320] [2022-12-14 13:13:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:13:38,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:13:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:13:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:13:38,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:13:38,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831391320] [2022-12-14 13:13:38,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831391320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:13:38,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:13:38,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:13:38,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248914378] [2022-12-14 13:13:38,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:13:38,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:13:38,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:13:38,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:13:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:13:38,580 INFO L87 Difference]: Start difference. First operand has 59 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 45 states have internal predecessors, (55), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:13:38,628 INFO L93 Difference]: Finished difference Result 116 states and 159 transitions. [2022-12-14 13:13:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:13:38,630 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-14 13:13:38,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:13:38,636 INFO L225 Difference]: With dead ends: 116 [2022-12-14 13:13:38,636 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 13:13:38,639 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 [2022-12-14 13:13:38,641 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:13:38,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:13:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 13:13:38,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-12-14 13:13:38,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 41 states have internal predecessors, (47), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 13:13:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2022-12-14 13:13:38,670 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 17 [2022-12-14 13:13:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:13:38,670 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2022-12-14 13:13:38,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2022-12-14 13:13:38,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 13:13:38,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:13:38,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:13:38,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:13:38,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:13:38,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:13:38,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1150912287, now seen corresponding path program 1 times [2022-12-14 13:13:38,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:13:38,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798007462] [2022-12-14 13:13:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:13:38,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:13:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:13:38,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:13:38,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:13:38,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798007462] [2022-12-14 13:13:38,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798007462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:13:38,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:13:38,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:13:38,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867027367] [2022-12-14 13:13:38,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:13:38,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:13:38,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:13:38,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:13:38,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:13:38,743 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:13:38,773 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2022-12-14 13:13:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:13:38,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-12-14 13:13:38,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:13:38,774 INFO L225 Difference]: With dead ends: 80 [2022-12-14 13:13:38,774 INFO L226 Difference]: Without dead ends: 46 [2022-12-14 13:13:38,774 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 [2022-12-14 13:13:38,775 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 14 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:13:38,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 75 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:13:38,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-14 13:13:38,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-12-14 13:13:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 36 states have internal predecessors, (41), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 13:13:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-12-14 13:13:38,781 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 18 [2022-12-14 13:13:38,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:13:38,781 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-12-14 13:13:38,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,781 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-12-14 13:13:38,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 13:13:38,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:13:38,782 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] [2022-12-14 13:13:38,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:13:38,782 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:13:38,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:13:38,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1067510655, now seen corresponding path program 1 times [2022-12-14 13:13:38,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:13:38,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587525041] [2022-12-14 13:13:38,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:13:38,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:13:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:13:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:13:38,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:13:38,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587525041] [2022-12-14 13:13:38,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587525041] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:13:38,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:13:38,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:13:38,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45482201] [2022-12-14 13:13:38,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:13:38,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:13:38,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:13:38,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:13:38,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:13:38,870 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:13:38,966 INFO L93 Difference]: Finished difference Result 138 states and 184 transitions. [2022-12-14 13:13:38,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:13:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2022-12-14 13:13:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:13:38,968 INFO L225 Difference]: With dead ends: 138 [2022-12-14 13:13:38,969 INFO L226 Difference]: Without dead ends: 94 [2022-12-14 13:13:38,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:13:38,970 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 73 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:13:38,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 141 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:13:38,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-12-14 13:13:38,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2022-12-14 13:13:38,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 60 states have internal predecessors, (70), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (15), 11 states have call predecessors, (15), 14 states have call successors, (15) [2022-12-14 13:13:38,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2022-12-14 13:13:38,981 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 21 [2022-12-14 13:13:38,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:13:38,982 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2022-12-14 13:13:38,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:38,982 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2022-12-14 13:13:38,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 13:13:38,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:13:38,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:13:38,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:13:38,983 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:13:38,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:13:38,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1463038178, now seen corresponding path program 1 times [2022-12-14 13:13:38,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:13:38,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145414962] [2022-12-14 13:13:38,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:13:38,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:13:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:13:39,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:13:39,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:13:39,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145414962] [2022-12-14 13:13:39,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145414962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:13:39,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:13:39,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:13:39,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906481972] [2022-12-14 13:13:39,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:13:39,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:13:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:13:39,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:13:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:13:39,138 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:39,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:13:39,232 INFO L93 Difference]: Finished difference Result 247 states and 333 transitions. [2022-12-14 13:13:39,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:13:39,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 24 [2022-12-14 13:13:39,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:13:39,234 INFO L225 Difference]: With dead ends: 247 [2022-12-14 13:13:39,234 INFO L226 Difference]: Without dead ends: 172 [2022-12-14 13:13:39,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:13:39,235 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 61 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:13:39,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 218 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:13:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-14 13:13:39,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 153. [2022-12-14 13:13:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 104 states have (on average 1.3653846153846154) internal successors, (142), 119 states have internal predecessors, (142), 27 states have call successors, (27), 21 states have call predecessors, (27), 21 states have return successors, (29), 21 states have call predecessors, (29), 27 states have call successors, (29) [2022-12-14 13:13:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 198 transitions. [2022-12-14 13:13:39,254 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 198 transitions. Word has length 24 [2022-12-14 13:13:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:13:39,254 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 198 transitions. [2022-12-14 13:13:39,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 13:13:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 198 transitions. [2022-12-14 13:13:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 13:13:39,255 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:13:39,255 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] [2022-12-14 13:13:39,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:13:39,255 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:13:39,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:13:39,256 INFO L85 PathProgramCache]: Analyzing trace with hash -385902864, now seen corresponding path program 1 times [2022-12-14 13:13:39,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:13:39,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482960891] [2022-12-14 13:13:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:13:39,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:13:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:13:39,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:13:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:13:39,293 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:13:39,293 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:13:39,294 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 13:13:39,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:13:39,298 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 13:13:39,301 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:13:39,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:13:39 BoogieIcfgContainer [2022-12-14 13:13:39,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:13:39,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:13:39,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:13:39,324 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:13:39,325 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:13:38" (3/4) ... [2022-12-14 13:13:39,327 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 13:13:39,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:13:39,376 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:13:39,376 INFO L158 Benchmark]: Toolchain (without parser) took 1712.03ms. Allocated memory is still 161.5MB. Free memory was 124.4MB in the beginning and 97.5MB in the end (delta: 26.9MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,377 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:13:39,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.56ms. Allocated memory is still 161.5MB. Free memory was 123.9MB in the beginning and 106.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,377 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.82ms. Allocated memory is still 161.5MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,377 INFO L158 Benchmark]: Boogie Preprocessor took 17.83ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,378 INFO L158 Benchmark]: RCFGBuilder took 359.06ms. Allocated memory is still 161.5MB. Free memory was 102.4MB in the beginning and 82.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,378 INFO L158 Benchmark]: TraceAbstraction took 974.85ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 100.7MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:13:39,378 INFO L158 Benchmark]: Witness Printer took 52.06ms. Allocated memory is still 161.5MB. Free memory was 100.7MB in the beginning and 97.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:13:39,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.56ms. Allocated memory is still 161.5MB. Free memory was 123.9MB in the beginning and 106.1MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.82ms. Allocated memory is still 161.5MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.83ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 102.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 359.06ms. Allocated memory is still 161.5MB. Free memory was 102.4MB in the beginning and 82.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 974.85ms. Allocated memory is still 161.5MB. Free memory was 81.9MB in the beginning and 100.7MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.06ms. Allocated memory is still 161.5MB. Free memory was 100.7MB in the beginning and 97.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L97] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L606] int pumpRunning = 0; [L607] int systemActive = 1; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; [L175] int retValue_acc ; [L176] int tmp ; [L180] FCALL select_helpers() [L181] FCALL select_features() [L182] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L182] RET, EXPR valid_product() [L182] tmp = valid_product() [L184] COND TRUE \read(tmp) [L186] FCALL setup() [L187] CALL runTest() [L169] CALL test() [L755] int splverifierCounter ; [L756] int tmp ; [L757] int tmp___0 ; [L758] int tmp___1 ; [L759] int tmp___2 ; [L762] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L764] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L766] COND TRUE splverifierCounter < 4 [L772] tmp = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L776] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 [L776] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L782] tmp___0 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L792] tmp___2 = __VERIFIER_nondet_int() [L794] COND FALSE !(\read(tmp___2)) [L798] tmp___1 = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp___1) [L802] CALL stopSystem() [L742] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] systemActive = 0 [L802] RET stopSystem() [L809] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L613] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L620] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L628] CALL __utac_acc__Specification3_spec__1() [L568] int tmp ; [L569] int tmp___0 ; [L570] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L574] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); [L574] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L574] tmp = isMethaneLevelCritical() [L576] COND FALSE !(\read(tmp)) [L580] CALL, EXPR getWaterLevel() [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); [L580] RET, EXPR getWaterLevel() [L580] tmp___0 = getWaterLevel() [L582] COND TRUE tmp___0 == 2 [L584] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L584] RET, EXPR isPumpRunning() [L584] tmp___1 = isPumpRunning() [L586] COND FALSE !(\read(tmp___1)) [L590] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148 mSDsluCounter, 494 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 269 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 184 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 225 mSDtfsCounter, 184 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 13:13:39,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b68d0a-44ed-4c96-b8d7-de0aeed8f7ae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE