./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.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_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/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_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/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_6cc48a70-0f3d-4451-9b32-4e01a785212e/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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- 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 04:09:18,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:09:18,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:09:18,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:09:18,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:09:18,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:09:18,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:09:18,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:09:18,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:09:18,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:09:18,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:09:18,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:09:18,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:09:18,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:09:18,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:09:18,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:09:18,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:09:18,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:09:18,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:09:18,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:09:18,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:09:18,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:09:18,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:09:18,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:09:18,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:09:18,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:09:18,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:09:18,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:09:18,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:09:18,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:09:18,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:09:18,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:09:18,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:09:18,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:09:18,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:09:18,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:09:18,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:09:18,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:09:18,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:09:18,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:09:18,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:09:18,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:09:18,846 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:09:18,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:09:18,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:09:18,848 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:09:18,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:09:18,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:09:18,850 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:09:18,850 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:09:18,850 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:09:18,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:09:18,852 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:09:18,852 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:09:18,852 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:09:18,853 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:09:18,853 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:09:18,853 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:09:18,853 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:09:18,854 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:09:18,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:09:18,855 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:09:18,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:09:18,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:09:18,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:09:18,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:09:18,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:09:18,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:09:18,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:09:18,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:09:18,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:09:18,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:09:18,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:09:18,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:09:18,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:09:18,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:09:18,866 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:09:18,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:09:18,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:09:18,866 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:09:18,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:09:18,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:09:18,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:09:18,867 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_6cc48a70-0f3d-4451-9b32-4e01a785212e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2022-11-03 04:09:19,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:09:19,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:09:19,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:09:19,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:09:19,200 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:09:19,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2022-11-03 04:09:19,286 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/data/eaaa9870c/4b0127436b8e47009e88abd3c4ed017c/FLAGf568134e6 [2022-11-03 04:09:19,808 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:09:19,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2022-11-03 04:09:19,822 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/data/eaaa9870c/4b0127436b8e47009e88abd3c4ed017c/FLAGf568134e6 [2022-11-03 04:09:20,288 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/data/eaaa9870c/4b0127436b8e47009e88abd3c4ed017c [2022-11-03 04:09:20,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:09:20,292 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:09:20,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:09:20,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:09:20,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:09:20,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e196c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20, skipping insertion in model container [2022-11-03 04:09:20,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:09:20,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:09:20,583 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_6cc48a70-0f3d-4451-9b32-4e01a785212e/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2022-11-03 04:09:20,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:20,698 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:09:20,728 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_6cc48a70-0f3d-4451-9b32-4e01a785212e/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2022-11-03 04:09:20,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:09:20,841 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:09:20,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20 WrapperNode [2022-11-03 04:09:20,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:09:20,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:20,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:09:20,844 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:09:20,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,893 INFO L138 Inliner]: procedures = 55, calls = 158, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 239 [2022-11-03 04:09:20,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:09:20,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:09:20,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:09:20,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:09:20,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,921 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:09:20,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:09:20,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:09:20,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:09:20,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (1/1) ... [2022-11-03 04:09:20,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:09:20,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:21,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:09:21,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:09:21,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:09:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 04:09:21,055 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 04:09:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 04:09:21,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 04:09:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 04:09:21,055 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 04:09:21,055 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 04:09:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 04:09:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 04:09:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 04:09:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:09:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 04:09:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 04:09:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 04:09:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 04:09:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 04:09:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:09:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 04:09:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 04:09:21,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:09:21,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:09:21,159 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:09:21,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:09:21,638 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:09:21,805 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:09:21,806 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 04:09:21,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:21 BoogieIcfgContainer [2022-11-03 04:09:21,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:09:21,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:09:21,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:09:21,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:09:21,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:09:20" (1/3) ... [2022-11-03 04:09:21,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b05873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:21, skipping insertion in model container [2022-11-03 04:09:21,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:20" (2/3) ... [2022-11-03 04:09:21,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b05873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:21, skipping insertion in model container [2022-11-03 04:09:21,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:21" (3/3) ... [2022-11-03 04:09:21,823 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2022-11-03 04:09:21,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:09:21,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:09:21,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:09:21,962 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;@624059de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:09:21,968 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:09:21,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 04:09:21,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 04:09:21,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:21,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:21,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:21,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1499619605, now seen corresponding path program 1 times [2022-11-03 04:09:22,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:22,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492189758] [2022-11-03 04:09:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:22,344 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 04:09:22,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:22,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492189758] [2022-11-03 04:09:22,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492189758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:22,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:22,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:09:22,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285741787] [2022-11-03 04:09:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:22,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 04:09:22,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:22,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 04:09:22,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 04:09:22,401 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-11-03 04:09:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:22,513 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2022-11-03 04:09:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 04:09:22,516 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 [2022-11-03 04:09:22,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:22,527 INFO L225 Difference]: With dead ends: 140 [2022-11-03 04:09:22,527 INFO L226 Difference]: Without dead ends: 66 [2022-11-03 04:09:22,532 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 04:09:22,536 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:22,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:22,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-03 04:09:22,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-03 04:09:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 49 states have internal predecessors, (55), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 04:09:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-11-03 04:09:22,626 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2022-11-03 04:09:22,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:22,628 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-11-03 04:09:22,629 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) [2022-11-03 04:09:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-03 04:09:22,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:09:22,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:22,635 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 04:09:22,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:09:22,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:22,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1584113840, now seen corresponding path program 1 times [2022-11-03 04:09:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:22,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963961705] [2022-11-03 04:09:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:22,808 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 04:09:22,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:22,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963961705] [2022-11-03 04:09:22,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963961705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:22,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:22,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:22,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724539024] [2022-11-03 04:09:22,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:22,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:22,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:22,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:22,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:22,820 INFO L87 Difference]: Start difference. First operand 66 states and 86 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) [2022-11-03 04:09:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:22,892 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2022-11-03 04:09:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:09:22,893 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 [2022-11-03 04:09:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:22,904 INFO L225 Difference]: With dead ends: 104 [2022-11-03 04:09:22,905 INFO L226 Difference]: Without dead ends: 58 [2022-11-03 04:09:22,909 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 04:09:22,911 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:22,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 105 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:09:22,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-03 04:09:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-03 04:09:22,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 04:09:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2022-11-03 04:09:22,928 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 18 [2022-11-03 04:09:22,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:22,929 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2022-11-03 04:09:22,930 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) [2022-11-03 04:09:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2022-11-03 04:09:22,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 04:09:22,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:22,934 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 04:09:22,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:09:22,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:22,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:22,935 INFO L85 PathProgramCache]: Analyzing trace with hash 70540538, now seen corresponding path program 1 times [2022-11-03 04:09:22,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:22,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128607205] [2022-11-03 04:09:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:23,076 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 04:09:23,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:23,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128607205] [2022-11-03 04:09:23,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128607205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:23,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:23,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:23,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553724866] [2022-11-03 04:09:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:23,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:23,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:23,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:23,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:23,081 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-03 04:09:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:23,196 INFO L93 Difference]: Finished difference Result 170 states and 222 transitions. [2022-11-03 04:09:23,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:09:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 [2022-11-03 04:09:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:23,199 INFO L225 Difference]: With dead ends: 170 [2022-11-03 04:09:23,199 INFO L226 Difference]: Without dead ends: 114 [2022-11-03 04:09:23,200 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 04:09:23,201 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:23,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 140 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:23,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-03 04:09:23,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2022-11-03 04:09:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 68 states have (on average 1.3676470588235294) internal successors, (93), 83 states have internal predecessors, (93), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 17 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-03 04:09:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 145 transitions. [2022-11-03 04:09:23,225 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 145 transitions. Word has length 21 [2022-11-03 04:09:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:23,225 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 145 transitions. [2022-11-03 04:09:23,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 04:09:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 145 transitions. [2022-11-03 04:09:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:09:23,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:23,227 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:23,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:09:23,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:23,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash -703874841, now seen corresponding path program 1 times [2022-11-03 04:09:23,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:23,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308377765] [2022-11-03 04:09:23,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:23,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:23,461 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 04:09:23,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:23,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308377765] [2022-11-03 04:09:23,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308377765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:23,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:23,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:09:23,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161058294] [2022-11-03 04:09:23,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:23,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:09:23,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:23,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:09:23,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:23,466 INFO L87 Difference]: Start difference. First operand 111 states and 145 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) [2022-11-03 04:09:23,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:23,592 INFO L93 Difference]: Finished difference Result 297 states and 390 transitions. [2022-11-03 04:09:23,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:23,592 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 [2022-11-03 04:09:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:23,595 INFO L225 Difference]: With dead ends: 297 [2022-11-03 04:09:23,595 INFO L226 Difference]: Without dead ends: 188 [2022-11-03 04:09:23,596 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 04:09:23,598 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 43 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:23,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 245 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:23,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-03 04:09:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2022-11-03 04:09:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 116 states have (on average 1.3103448275862069) internal successors, (152), 133 states have internal predecessors, (152), 36 states have call successors, (36), 26 states have call predecessors, (36), 26 states have return successors, (36), 27 states have call predecessors, (36), 36 states have call successors, (36) [2022-11-03 04:09:23,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 224 transitions. [2022-11-03 04:09:23,625 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 224 transitions. Word has length 24 [2022-11-03 04:09:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:23,626 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 224 transitions. [2022-11-03 04:09:23,626 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) [2022-11-03 04:09:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 224 transitions. [2022-11-03 04:09:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:09:23,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:23,628 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] [2022-11-03 04:09:23,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:09:23,629 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:23,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1869585414, now seen corresponding path program 1 times [2022-11-03 04:09:23,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:23,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864362676] [2022-11-03 04:09:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:23,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:09:23,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:09:23,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:09:23,693 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 04:09:23,693 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:09:23,694 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:09:23,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:09:23,700 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 04:09:23,704 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:09:23,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:09:23 BoogieIcfgContainer [2022-11-03 04:09:23,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:09:23,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:09:23,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:09:23,738 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:09:23,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:21" (3/4) ... [2022-11-03 04:09:23,740 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 04:09:23,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:09:23,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:09:23,794 INFO L158 Benchmark]: Toolchain (without parser) took 3501.55ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 74.4MB in the beginning and 61.7MB in the end (delta: 12.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,794 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:09:23,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 549.02ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 65.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.62ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 62.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,795 INFO L158 Benchmark]: Boogie Preprocessor took 31.17ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,796 INFO L158 Benchmark]: RCFGBuilder took 883.01ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 82.5MB in the end (delta: -21.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,796 INFO L158 Benchmark]: TraceAbstraction took 1925.28ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 64.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,797 INFO L158 Benchmark]: Witness Printer took 55.93ms. Allocated memory is still 121.6MB. Free memory was 64.9MB in the beginning and 61.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:09:23,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 100.7MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 549.02ms. Allocated memory is still 100.7MB. Free memory was 74.4MB in the beginning and 65.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.62ms. Allocated memory is still 100.7MB. Free memory was 65.0MB in the beginning and 62.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.17ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 61.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 883.01ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 61.0MB in the beginning and 82.5MB in the end (delta: -21.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1925.28ms. Allocated memory is still 121.6MB. Free memory was 81.9MB in the beginning and 64.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 55.93ms. Allocated memory is still 121.6MB. Free memory was 64.9MB in the beginning and 61.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 150]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L534] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L546] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 [L546] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L552] tmp___0 = __VERIFIER_nondet_int() [L554] 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] [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp___2)) [L568] tmp___1 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___1) [L572] CALL stopSystem() [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] systemActive = 0 [L572] RET stopSystem() [L579] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L610] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] 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] [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND TRUE tmp___0 == 2 [L823] CALL, EXPR isPumpRunning() [L727] int retValue_acc ; [L730] retValue_acc = pumpRunning [L731] return (retValue_acc); [L823] RET, EXPR isPumpRunning() [L823] tmp___1 = isPumpRunning() [L825] COND FALSE !(\read(tmp___1)) [L829] CALL __automaton_fail() [L150] 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 10 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 565 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 330 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 281 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 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! [2022-11-03 04:09:23,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cc48a70-0f3d-4451-9b32-4e01a785212e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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