./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI --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 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a --- 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-5e519f3 [2022-11-03 02:53:37,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:53:37,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:53:37,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:53:37,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:53:37,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:53:37,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:53:37,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:53:37,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:53:37,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:53:37,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:53:37,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:53:37,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:53:37,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:53:37,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:53:37,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:53:37,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:53:37,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:53:37,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:53:37,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:53:37,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:53:37,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:53:37,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:53:37,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:53:37,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:53:37,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:53:37,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:53:37,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:53:37,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:53:37,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:53:37,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:53:37,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:53:37,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:53:37,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:53:37,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:53:37,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:53:37,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:53:37,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:53:37,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:53:37,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:53:37,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:53:37,962 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:53:37,999 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:53:38,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:53:38,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:53:38,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:53:38,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:53:38,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:53:38,003 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:53:38,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:53:38,003 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:53:38,003 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:53:38,005 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:53:38,005 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:53:38,005 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:53:38,006 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:53:38,006 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:53:38,006 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:53:38,007 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:53:38,007 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:53:38,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:53:38,008 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:53:38,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:53:38,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:53:38,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:53:38,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:53:38,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:53:38,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:53:38,010 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:53:38,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:53:38,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:53:38,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:53:38,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:53:38,012 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:53:38,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:53:38,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:53:38,012 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:53:38,013 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:53:38,013 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:53:38,013 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:53:38,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:53:38,014 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:53:38,014 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:53:38,014 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_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2022-11-03 02:53:38,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:53:38,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:53:38,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:53:38,390 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:53:38,391 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:53:38,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2022-11-03 02:53:38,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/data/23ada1f78/30669a34ebe540c1a19a3347d30123ab/FLAG4291bdcc4 [2022-11-03 02:53:39,232 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:53:39,238 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2022-11-03 02:53:39,251 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/data/23ada1f78/30669a34ebe540c1a19a3347d30123ab/FLAG4291bdcc4 [2022-11-03 02:53:39,535 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/data/23ada1f78/30669a34ebe540c1a19a3347d30123ab [2022-11-03 02:53:39,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:53:39,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:53:39,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:53:39,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:53:39,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:53:39,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:53:39" (1/1) ... [2022-11-03 02:53:39,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28120d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:39, skipping insertion in model container [2022-11-03 02:53:39,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:53:39" (1/1) ... [2022-11-03 02:53:39,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:53:39,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:53:39,870 WARN L230 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_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2022-11-03 02:53:39,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:53:40,008 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:53:40,028 WARN L230 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_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2022-11-03 02:53:40,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:53:40,131 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:53:40,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40 WrapperNode [2022-11-03 02:53:40,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:53:40,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:53:40,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:53:40,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:53:40,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,226 INFO L138 Inliner]: procedures = 50, calls = 146, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 195 [2022-11-03 02:53:40,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:53:40,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:53:40,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:53:40,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:53:40,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,272 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:53:40,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:53:40,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:53:40,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:53:40,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (1/1) ... [2022-11-03 02:53:40,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:53:40,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:53:40,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:53:40,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:53:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:53:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 02:53:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 02:53:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 02:53:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 02:53:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 02:53:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 02:53:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 02:53:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 02:53:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:53:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 02:53:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 02:53:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:53:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:53:40,495 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:53:40,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:53:40,990 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:53:41,164 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:53:41,164 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 02:53:41,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:53:41 BoogieIcfgContainer [2022-11-03 02:53:41,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:53:41,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:53:41,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:53:41,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:53:41,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:53:39" (1/3) ... [2022-11-03 02:53:41,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ee2603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:53:41, skipping insertion in model container [2022-11-03 02:53:41,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:53:40" (2/3) ... [2022-11-03 02:53:41,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ee2603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:53:41, skipping insertion in model container [2022-11-03 02:53:41,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:53:41" (3/3) ... [2022-11-03 02:53:41,191 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2022-11-03 02:53:41,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:53:41,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:53:41,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:53:41,326 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;@4dd0a0a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:53:41,339 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:53:41,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 02:53:41,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:53:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:53:41,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:53:41,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:53:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:53:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1334164938, now seen corresponding path program 1 times [2022-11-03 02:53:41,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:53:41,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030649230] [2022-11-03 02:53:41,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:41,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:53:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:53:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:53:41,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:53:41,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030649230] [2022-11-03 02:53:41,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030649230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:53:41,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:53:41,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:53:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968533430] [2022-11-03 02:53:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:53:41,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:53:41,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:53:41,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:53:41,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:53:41,848 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:41,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:53:41,936 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-03 02:53:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:53:41,939 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-11-03 02:53:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:53:41,949 INFO L225 Difference]: With dead ends: 78 [2022-11-03 02:53:41,949 INFO L226 Difference]: Without dead ends: 35 [2022-11-03 02:53:41,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:53:41,957 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:53:41,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:53:41,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-03 02:53:42,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-03 02:53:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-03 02:53:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-03 02:53:42,032 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-03 02:53:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:53:42,032 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-03 02:53:42,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:42,035 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-03 02:53:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:53:42,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:53:42,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:53:42,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:53:42,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:53:42,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:53:42,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1159609905, now seen corresponding path program 1 times [2022-11-03 02:53:42,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:53:42,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304834448] [2022-11-03 02:53:42,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:42,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:53:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:53:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:53:42,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:53:42,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304834448] [2022-11-03 02:53:42,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304834448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:53:42,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:53:42,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:53:42,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573550193] [2022-11-03 02:53:42,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:53:42,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:53:42,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:53:42,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:53:42,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:53:42,223 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:53:42,268 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-03 02:53:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:53:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16 [2022-11-03 02:53:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:53:42,271 INFO L225 Difference]: With dead ends: 47 [2022-11-03 02:53:42,271 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 02:53:42,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:53:42,273 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:53:42,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:53:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 02:53:42,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-03 02:53:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-03 02:53:42,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-03 02:53:42,281 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-03 02:53:42,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:53:42,282 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-03 02:53:42,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:42,282 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-03 02:53:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:53:42,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:53:42,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:53:42,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:53:42,284 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:53:42,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:53:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash 532146191, now seen corresponding path program 1 times [2022-11-03 02:53:42,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:53:42,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286044129] [2022-11-03 02:53:42,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:42,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:53:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:53:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:53:42,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:53:42,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286044129] [2022-11-03 02:53:42,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286044129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:53:42,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:53:42,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:53:42,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837513920] [2022-11-03 02:53:42,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:53:42,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:53:42,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:53:42,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:53:42,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:53:42,676 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:42,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:53:42,758 INFO L93 Difference]: Finished difference Result 75 states and 89 transitions. [2022-11-03 02:53:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:53:42,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 18 [2022-11-03 02:53:42,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:53:42,762 INFO L225 Difference]: With dead ends: 75 [2022-11-03 02:53:42,762 INFO L226 Difference]: Without dead ends: 50 [2022-11-03 02:53:42,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:53:42,764 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:53:42,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 69 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:53:42,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-03 02:53:42,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-11-03 02:53:42,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 35 states have internal predecessors, (39), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 02:53:42,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-11-03 02:53:42,779 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 18 [2022-11-03 02:53:42,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:53:42,779 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-11-03 02:53:42,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:53:42,780 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-11-03 02:53:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 02:53:42,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:53:42,781 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] [2022-11-03 02:53:42,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:53:42,781 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:53:42,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:53:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash -769505589, now seen corresponding path program 1 times [2022-11-03 02:53:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:53:42,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204225603] [2022-11-03 02:53:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:53:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:53:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:53:42,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:53:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:53:42,859 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:53:42,860 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:53:42,861 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:53:42,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:53:42,867 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 02:53:42,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:53:42,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:53:42 BoogieIcfgContainer [2022-11-03 02:53:42,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:53:42,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:53:42,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:53:42,905 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:53:42,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:53:41" (3/4) ... [2022-11-03 02:53:42,907 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:53:42,963 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:53:42,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:53:42,964 INFO L158 Benchmark]: Toolchain (without parser) took 3424.11ms. Allocated memory is still 127.9MB. Free memory was 94.3MB in the beginning and 81.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,965 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:53:42,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.93ms. Allocated memory is still 127.9MB. Free memory was 94.3MB in the beginning and 97.3MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,966 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.62ms. Allocated memory is still 127.9MB. Free memory was 97.3MB in the beginning and 95.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,966 INFO L158 Benchmark]: Boogie Preprocessor took 62.97ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 93.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,967 INFO L158 Benchmark]: RCFGBuilder took 883.65ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 68.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,967 INFO L158 Benchmark]: TraceAbstraction took 1722.08ms. Allocated memory is still 127.9MB. Free memory was 67.6MB in the beginning and 84.6MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:53:42,968 INFO L158 Benchmark]: Witness Printer took 59.35ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 81.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:53:42,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 86.0MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 25.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.93ms. Allocated memory is still 127.9MB. Free memory was 94.3MB in the beginning and 97.3MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.62ms. Allocated memory is still 127.9MB. Free memory was 97.3MB in the beginning and 95.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.97ms. Allocated memory is still 127.9MB. Free memory was 95.0MB in the beginning and 93.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 883.65ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 68.4MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1722.08ms. Allocated memory is still 127.9MB. Free memory was 67.6MB in the beginning and 84.6MB in the end (delta: -17.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.35ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 81.2MB in the end (delta: 3.4MB). 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: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L472] int pumpRunning = 0; [L473] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L789] int waterLevel = 1; [L790] int methaneLevelCritical = 0; [L766] int retValue_acc ; [L767] int tmp ; [L771] FCALL select_helpers() [L772] FCALL select_features() [L773] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L773] RET, EXPR valid_product() [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) [L777] FCALL setup() [L778] CALL runTest() [L760] CALL test() [L627] int splverifierCounter ; [L628] int tmp ; [L629] int tmp___0 ; [L630] int tmp___1 ; [L631] int tmp___2 ; [L634] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L636] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L638] COND TRUE splverifierCounter < 4 [L644] tmp = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L648] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] COND TRUE waterLevel < 2 [L808] waterLevel = waterLevel + 1 [L648] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L654] tmp___0 = __VERIFIER_nondet_int() [L656] 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] [L664] tmp___2 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___2) [L668] CALL startSystem() [L583] systemActive = 1 [L668] RET startSystem() [L681] CALL timeShift() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(pumpRunning)) [L487] COND TRUE \read(systemActive) [L489] FCALL processEnvironment() [L495] CALL __utac_acc__Specification3_spec__1() [L590] int tmp ; [L591] int tmp___0 ; [L592] int tmp___1 ; VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] CALL, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] int retValue_acc ; [L831] retValue_acc = methaneLevelCritical [L832] return (retValue_acc); [L596] RET, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isMethaneLevelCritical() [L598] COND FALSE !(\read(tmp)) [L602] CALL, EXPR getWaterLevel() [L860] int retValue_acc ; [L863] retValue_acc = waterLevel [L864] return (retValue_acc); [L602] RET, EXPR getWaterLevel() [L602] tmp___0 = getWaterLevel() [L604] COND TRUE tmp___0 == 2 [L606] CALL, EXPR isPumpRunning() [L535] int retValue_acc ; [L538] retValue_acc = pumpRunning [L539] return (retValue_acc); [L606] RET, EXPR isPumpRunning() [L606] tmp___1 = isPumpRunning() [L608] COND FALSE !(\read(tmp___1)) [L612] CALL __automaton_fail() [L92] reach_error() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 77 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 78 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-03 02:53:43,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84c18e8-4e75-405b-aeae-cdfb7dca00e6/bin/utaipan-7li7fVZpFI/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