./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.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_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/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_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/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_24bf5d27-c2b9-477f-807a-79ceafdbc518/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 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c --- 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 09:30:45,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:30:45,573 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:30:45,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:30:45,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:30:45,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:30:45,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:30:45,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:30:45,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:30:45,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:30:45,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:30:45,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:30:45,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:30:45,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:30:45,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:30:45,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:30:45,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:30:45,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:30:45,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:30:45,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:30:45,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:30:45,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:30:45,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:30:45,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:30:45,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:30:45,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:30:45,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:30:45,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:30:45,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:30:45,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:30:45,618 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:30:45,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:30:45,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:30:45,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:30:45,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:30:45,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:30:45,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:30:45,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:30:45,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:30:45,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:30:45,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:30:45,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 09:30:45,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:30:45,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:30:45,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:30:45,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:30:45,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:30:45,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:30:45,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:30:45,675 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:30:45,675 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:30:45,675 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:30:45,675 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:30:45,675 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:30:45,675 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:30:45,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:30:45,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:30:45,677 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:30:45,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:30:45,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:30:45,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:30:45,678 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_24bf5d27-c2b9-477f-807a-79ceafdbc518/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e5f42a5bbc52e8ca75c0ac5e2c6aad044a3ab94096d236f597eae12e8fb5e5c [2022-12-14 09:30:45,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:30:45,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:30:45,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:30:45,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:30:45,919 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:30:45,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-12-14 09:30:48,461 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:30:48,602 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:30:48,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2022-12-14 09:30:48,610 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/data/88035944a/535b7db5fe154ccd963d170d3f570b90/FLAGf0667daf8 [2022-12-14 09:30:48,620 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/data/88035944a/535b7db5fe154ccd963d170d3f570b90 [2022-12-14 09:30:48,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:30:48,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:30:48,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:30:48,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:30:48,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:30:48,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:48,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea3a1ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48, skipping insertion in model container [2022-12-14 09:30:48,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:48,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:30:48,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:30:48,817 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_24bf5d27-c2b9-477f-807a-79ceafdbc518/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2022-12-14 09:30:48,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:30:48,877 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:30:48,897 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_24bf5d27-c2b9-477f-807a-79ceafdbc518/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c[3936,3949] [2022-12-14 09:30:48,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:30:48,954 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:30:48,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48 WrapperNode [2022-12-14 09:30:48,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:30:48,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:30:48,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:30:48,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:30:48,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:48,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:48,995 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 201 [2022-12-14 09:30:48,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:30:48,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:30:48,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:30:48,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:30:49,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:30:49,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:30:49,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:30:49,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:30:49,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (1/1) ... [2022-12-14 09:30:49,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:30:49,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:30:49,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:30:49,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:30:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:30:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-12-14 09:30:49,081 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-12-14 09:30:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-12-14 09:30:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-12-14 09:30:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-12-14 09:30:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-12-14 09:30:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-12-14 09:30:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-12-14 09:30:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 09:30:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-12-14 09:30:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-12-14 09:30:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-12-14 09:30:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-12-14 09:30:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-12-14 09:30:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:30:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-12-14 09:30:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-12-14 09:30:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:30:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:30:49,142 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:30:49,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:30:49,346 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:30:49,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:30:49,418 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:30:49,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:30:49 BoogieIcfgContainer [2022-12-14 09:30:49,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:30:49,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:30:49,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:30:49,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:30:49,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:30:48" (1/3) ... [2022-12-14 09:30:49,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dd393d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:30:49, skipping insertion in model container [2022-12-14 09:30:49,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:30:48" (2/3) ... [2022-12-14 09:30:49,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25dd393d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:30:49, skipping insertion in model container [2022-12-14 09:30:49,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:30:49" (3/3) ... [2022-12-14 09:30:49,427 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2022-12-14 09:30:49,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:30:49,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:30:49,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:30:49,482 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;@22002b6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:30:49,482 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:30:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 09:30:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:30:49,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:49,492 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 09:30:49,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash -653211656, now seen corresponding path program 1 times [2022-12-14 09:30:49,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:49,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070267670] [2022-12-14 09:30:49,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:49,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:49,620 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 09:30:49,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:49,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070267670] [2022-12-14 09:30:49,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070267670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:49,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:49,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:30:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190482019] [2022-12-14 09:30:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:49,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:30:49,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:49,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:30:49,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:30:49,649 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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 09:30:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:49,704 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-12-14 09:30:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:30:49,706 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 09:30:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:49,712 INFO L225 Difference]: With dead ends: 130 [2022-12-14 09:30:49,713 INFO L226 Difference]: Without dead ends: 61 [2022-12-14 09:30:49,715 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 09:30:49,718 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:49,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:30:49,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-14 09:30:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-12-14 09:30:49,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 09:30:49,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-12-14 09:30:49,749 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2022-12-14 09:30:49,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:49,750 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-12-14 09:30:49,750 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 09:30:49,750 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-12-14 09:30:49,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:30:49,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:49,751 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 09:30:49,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:30:49,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash 837008321, now seen corresponding path program 1 times [2022-12-14 09:30:49,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:49,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130930915] [2022-12-14 09:30:49,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:49,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:49,847 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 09:30:49,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:49,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130930915] [2022-12-14 09:30:49,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130930915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:49,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:49,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:30:49,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131285103] [2022-12-14 09:30:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:49,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:30:49,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:49,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:30:49,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:30:49,850 INFO L87 Difference]: Start difference. First operand 61 states and 80 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 09:30:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:49,889 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-12-14 09:30:49,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:30:49,890 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 09:30:49,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:49,891 INFO L225 Difference]: With dead ends: 94 [2022-12-14 09:30:49,891 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 09:30:49,891 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 09:30:49,892 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 14 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:49,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 90 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:30:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 09:30:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-14 09:30:49,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 09:30:49,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-12-14 09:30:49,900 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2022-12-14 09:30:49,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:49,901 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-12-14 09:30:49,901 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 09:30:49,901 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-12-14 09:30:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:30:49,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:49,902 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 09:30:49,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:30:49,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:49,903 INFO L85 PathProgramCache]: Analyzing trace with hash -793271292, now seen corresponding path program 1 times [2022-12-14 09:30:49,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344557232] [2022-12-14 09:30:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:49,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:50,005 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 09:30:50,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:50,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344557232] [2022-12-14 09:30:50,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344557232] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:50,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:50,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:30:50,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146457896] [2022-12-14 09:30:50,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:50,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:30:50,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:50,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:30:50,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:30:50,007 INFO L87 Difference]: Start difference. First operand 53 states and 69 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 09:30:50,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:50,090 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2022-12-14 09:30:50,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:30:50,091 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 09:30:50,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:50,092 INFO L225 Difference]: With dead ends: 138 [2022-12-14 09:30:50,092 INFO L226 Difference]: Without dead ends: 87 [2022-12-14 09:30:50,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 09:30:50,094 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 92 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:50,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 136 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:30:50,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-12-14 09:30:50,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-12-14 09:30:50,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 66 states have internal predecessors, (76), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2022-12-14 09:30:50,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-12-14 09:30:50,109 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 21 [2022-12-14 09:30:50,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:50,109 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-12-14 09:30:50,109 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 09:30:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-12-14 09:30:50,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:30:50,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:50,110 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 09:30:50,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:30:50,110 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:50,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1827981316, now seen corresponding path program 1 times [2022-12-14 09:30:50,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:50,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484146247] [2022-12-14 09:30:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:50,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:30:50,264 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 09:30:50,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:30:50,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484146247] [2022-12-14 09:30:50,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484146247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:30:50,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:30:50,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:30:50,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251888018] [2022-12-14 09:30:50,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:30:50,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:30:50,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:30:50,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:30:50,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:30:50,267 INFO L87 Difference]: Start difference. First operand 84 states and 109 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 09:30:50,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:30:50,380 INFO L93 Difference]: Finished difference Result 267 states and 354 transitions. [2022-12-14 09:30:50,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:30:50,381 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 09:30:50,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:30:50,382 INFO L225 Difference]: With dead ends: 267 [2022-12-14 09:30:50,382 INFO L226 Difference]: Without dead ends: 185 [2022-12-14 09:30:50,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:30:50,383 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:30:50,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 202 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:30:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-12-14 09:30:50,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 170. [2022-12-14 09:30:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 117 states have (on average 1.3333333333333333) internal successors, (156), 132 states have internal predecessors, (156), 27 states have call successors, (27), 23 states have call predecessors, (27), 25 states have return successors, (32), 25 states have call predecessors, (32), 27 states have call successors, (32) [2022-12-14 09:30:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 215 transitions. [2022-12-14 09:30:50,401 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 215 transitions. Word has length 24 [2022-12-14 09:30:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:30:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 215 transitions. [2022-12-14 09:30:50,401 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 09:30:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 215 transitions. [2022-12-14 09:30:50,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 09:30:50,402 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:30:50,402 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 09:30:50,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:30:50,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:30:50,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:30:50,403 INFO L85 PathProgramCache]: Analyzing trace with hash -930958065, now seen corresponding path program 1 times [2022-12-14 09:30:50,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:30:50,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556663312] [2022-12-14 09:30:50,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:30:50,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:30:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:30:50,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:30:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:30:50,436 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:30:50,436 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:30:50,437 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 09:30:50,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:30:50,441 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 09:30:50,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:30:50,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:30:50 BoogieIcfgContainer [2022-12-14 09:30:50,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:30:50,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:30:50,465 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:30:50,465 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:30:50,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:30:49" (3/4) ... [2022-12-14 09:30:50,467 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 09:30:50,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:30:50,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:30:50,501 INFO L158 Benchmark]: Toolchain (without parser) took 1878.20ms. Allocated memory was 121.6MB in the beginning and 216.0MB in the end (delta: 94.4MB). Free memory was 80.9MB in the beginning and 164.9MB in the end (delta: -84.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,501 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 89.0MB in the beginning and 88.8MB in the end (delta: 134.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.22ms. Allocated memory is still 121.6MB. Free memory was 80.5MB in the beginning and 62.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.07ms. Allocated memory is still 121.6MB. Free memory was 62.0MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,502 INFO L158 Benchmark]: Boogie Preprocessor took 23.42ms. Allocated memory is still 121.6MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,502 INFO L158 Benchmark]: RCFGBuilder took 400.45ms. Allocated memory was 121.6MB in the beginning and 216.0MB in the end (delta: 94.4MB). Free memory was 58.3MB in the beginning and 187.7MB in the end (delta: -129.4MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,502 INFO L158 Benchmark]: TraceAbstraction took 1041.96ms. Allocated memory is still 216.0MB. Free memory was 186.6MB in the beginning and 168.0MB in the end (delta: 18.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,502 INFO L158 Benchmark]: Witness Printer took 35.72ms. Allocated memory is still 216.0MB. Free memory was 168.0MB in the beginning and 164.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:30:50,504 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 89.0MB in the beginning and 88.8MB in the end (delta: 134.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.22ms. Allocated memory is still 121.6MB. Free memory was 80.5MB in the beginning and 62.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.07ms. Allocated memory is still 121.6MB. Free memory was 62.0MB in the beginning and 60.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.42ms. Allocated memory is still 121.6MB. Free memory was 60.0MB in the beginning and 58.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.45ms. Allocated memory was 121.6MB in the beginning and 216.0MB in the end (delta: 94.4MB). Free memory was 58.3MB in the beginning and 187.7MB in the end (delta: -129.4MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1041.96ms. Allocated memory is still 216.0MB. Free memory was 186.6MB in the beginning and 168.0MB in the end (delta: 18.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Witness Printer took 35.72ms. Allocated memory is still 216.0MB. Free memory was 168.0MB in the beginning and 164.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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: 231]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L337] int pumpRunning = 0; [L338] int systemActive = 1; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L539] int splverifierCounter ; [L540] int tmp ; [L541] int tmp___0 ; [L542] int tmp___1 ; [L543] int tmp___2 ; [L546] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L548] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L550] COND TRUE splverifierCounter < 4 [L556] tmp = __VERIFIER_nondet_int() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L560] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 [L560] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L566] tmp___0 = __VERIFIER_nondet_int() [L568] 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] [L576] tmp___2 = __VERIFIER_nondet_int() [L578] COND FALSE !(\read(tmp___2)) [L584] tmp___1 = __VERIFIER_nondet_int() [L586] COND TRUE \read(tmp___1) [L588] CALL stopSystem() [L518] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] systemActive = 0 [L588] RET stopSystem() [L595] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L344] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L351] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L359] CALL __utac_acc__Specification3_spec__1() [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L200] 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] [L200] tmp = isMethaneLevelCritical() [L202] COND FALSE !(\read(tmp)) [L206] CALL, EXPR getWaterLevel() [L310] int retValue_acc ; [L313] retValue_acc = waterLevel [L314] return (retValue_acc); [L206] RET, EXPR getWaterLevel() [L206] tmp___0 = getWaterLevel() [L208] COND TRUE tmp___0 == 2 [L210] CALL, EXPR isPumpRunning() [L451] int retValue_acc ; [L454] retValue_acc = pumpRunning [L455] return (retValue_acc); [L210] RET, EXPR isPumpRunning() [L210] tmp___1 = isPumpRunning() [L212] COND FALSE !(\read(tmp___1)) [L216] CALL __automaton_fail() [L231] 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 495 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 178 IncrementalHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 248 mSDtfsCounter, 178 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 181 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 09:30:50,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24bf5d27-c2b9-477f-807a-79ceafdbc518/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