./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS --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 310c99156af564276fd2307b8bd19d77055bd9a88be466df2e869c4dbf78e36f --- 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-8393723 [2022-11-19 08:31:48,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:31:48,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:31:48,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:31:48,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:31:48,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:31:48,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:31:48,768 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:31:48,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:31:48,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:31:48,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:31:48,784 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:31:48,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:31:48,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:31:48,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:31:48,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:31:48,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:31:48,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:31:48,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:31:48,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:31:48,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:31:48,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:31:48,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:31:48,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:31:48,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:31:48,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:31:48,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:31:48,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:31:48,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:31:48,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:31:48,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:31:48,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:31:48,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:31:48,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:31:48,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:31:48,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:31:48,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:31:48,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:31:48,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:31:48,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:31:48,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:31:48,830 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:31:48,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:31:48,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:31:48,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:31:48,876 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:31:48,877 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:31:48,877 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:31:48,877 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:31:48,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:31:48,878 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:31:48,878 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:31:48,879 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:31:48,879 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:31:48,880 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:31:48,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:31:48,880 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:31:48,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:31:48,881 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:31:48,881 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:31:48,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:31:48,882 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:31:48,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:31:48,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:31:48,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:31:48,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:31:48,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:31:48,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:31:48,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:31:48,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:48,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:31:48,886 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:31:48,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:31:48,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:31:48,886 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:31:48,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:31:48,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:31:48,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:31:48,887 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_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 310c99156af564276fd2307b8bd19d77055bd9a88be466df2e869c4dbf78e36f [2022-11-19 08:31:49,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:31:49,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:31:49,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:31:49,209 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:31:49,210 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:31:49,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2022-11-19 08:31:49,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/data/1b8e7abdc/3d1055d4b81f4db0bb613419bfd4b913/FLAGeb59e7fdb [2022-11-19 08:31:49,869 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:31:49,876 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c [2022-11-19 08:31:49,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/data/1b8e7abdc/3d1055d4b81f4db0bb613419bfd4b913/FLAGeb59e7fdb [2022-11-19 08:31:50,195 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/data/1b8e7abdc/3d1055d4b81f4db0bb613419bfd4b913 [2022-11-19 08:31:50,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:31:50,199 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:31:50,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:50,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:31:50,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:31:50,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38191dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50, skipping insertion in model container [2022-11-19 08:31:50,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:31:50,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:31:50,510 WARN L234 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_bb7e5d4c-4cec-474e-963d-1c236439f4e6/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2022-11-19 08:31:50,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:50,694 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:31:50,707 WARN L234 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_bb7e5d4c-4cec-474e-963d-1c236439f4e6/sv-benchmarks/c/product-lines/minepump_spec3_product19.cil.c[1605,1618] [2022-11-19 08:31:50,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:31:50,762 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:31:50,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50 WrapperNode [2022-11-19 08:31:50,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:31:50,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:50,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:31:50,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:31:50,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,804 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 172 [2022-11-19 08:31:50,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:31:50,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:31:50,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:31:50,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:31:50,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:31:50,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:31:50,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:31:50,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:31:50,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (1/1) ... [2022-11-19 08:31:50,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:31:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:31:50,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:31:50,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:31:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:31:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 08:31:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 08:31:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 08:31:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 08:31:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 08:31:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 08:31:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 08:31:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 08:31:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 08:31:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 08:31:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-19 08:31:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-19 08:31:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:31:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 08:31:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 08:31:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:31:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:31:51,060 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:31:51,062 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:31:51,387 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:51,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:51,484 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:31:51,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:51 BoogieIcfgContainer [2022-11-19 08:31:51,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:51,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:51,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:51,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:51,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:31:50" (1/3) ... [2022-11-19 08:31:51,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:51, skipping insertion in model container [2022-11-19 08:31:51,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:31:50" (2/3) ... [2022-11-19 08:31:51,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:51, skipping insertion in model container [2022-11-19 08:31:51,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:51" (3/3) ... [2022-11-19 08:31:51,505 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2022-11-19 08:31:51,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:51,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:31:51,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:51,589 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;@766e5222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:51,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:31:51,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 08:31:51,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 08:31:51,604 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:51,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:51,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:51,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:51,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1036226178, now seen corresponding path program 1 times [2022-11-19 08:31:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:51,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257045304] [2022-11-19 08:31:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:51,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:51,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:51,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:51,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257045304] [2022-11-19 08:31:51,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257045304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:51,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:51,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:31:51,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534462175] [2022-11-19 08:31:51,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:51,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:31:51,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:51,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:31:51,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:31:51,910 INFO L87 Difference]: Start difference. First operand has 57 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 44 states have internal predecessors, (54), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2022-11-19 08:31:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:52,014 INFO L93 Difference]: Finished difference Result 112 states and 153 transitions. [2022-11-19 08:31:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:31:52,018 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 [2022-11-19 08:31:52,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:52,036 INFO L225 Difference]: With dead ends: 112 [2022-11-19 08:31:52,036 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 08:31:52,041 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 [2022-11-19 08:31:52,045 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:52,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:31:52,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 08:31:52,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 08:31:52,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 40 states have internal predecessors, (46), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-19 08:31:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2022-11-19 08:31:52,105 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 17 [2022-11-19 08:31:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:52,106 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2022-11-19 08:31:52,107 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) [2022-11-19 08:31:52,107 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2022-11-19 08:31:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 08:31:52,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:52,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:52,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:31:52,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:52,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2141395354, now seen corresponding path program 1 times [2022-11-19 08:31:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:52,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063841011] [2022-11-19 08:31:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:52,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:52,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063841011] [2022-11-19 08:31:52,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063841011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:52,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:52,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:52,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036284701] [2022-11-19 08:31:52,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:52,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:52,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:52,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:52,275 INFO L87 Difference]: Start difference. First operand 52 states and 67 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) [2022-11-19 08:31:52,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:52,341 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2022-11-19 08:31:52,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:31:52,342 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 [2022-11-19 08:31:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:52,345 INFO L225 Difference]: With dead ends: 76 [2022-11-19 08:31:52,346 INFO L226 Difference]: Without dead ends: 44 [2022-11-19 08:31:52,351 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 [2022-11-19 08:31:52,352 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:52,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 69 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:31:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-19 08:31:52,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-19 08:31:52,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 35 states have internal predecessors, (40), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 08:31:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-11-19 08:31:52,373 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 18 [2022-11-19 08:31:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:52,374 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-11-19 08:31:52,375 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) [2022-11-19 08:31:52,375 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-11-19 08:31:52,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 08:31:52,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:52,377 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] [2022-11-19 08:31:52,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:31:52,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1406015813, now seen corresponding path program 1 times [2022-11-19 08:31:52,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:52,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570120948] [2022-11-19 08:31:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:52,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:52,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570120948] [2022-11-19 08:31:52,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570120948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:52,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:52,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:52,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080424039] [2022-11-19 08:31:52,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:52,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:52,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:52,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:52,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:52,454 INFO L87 Difference]: Start difference. First operand 44 states and 56 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) [2022-11-19 08:31:52,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:52,508 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2022-11-19 08:31:52,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:31:52,509 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 [2022-11-19 08:31:52,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:52,511 INFO L225 Difference]: With dead ends: 128 [2022-11-19 08:31:52,511 INFO L226 Difference]: Without dead ends: 86 [2022-11-19 08:31:52,511 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 [2022-11-19 08:31:52,512 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 43 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:52,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 99 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:31:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-19 08:31:52,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2022-11-19 08:31:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-19 08:31:52,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-11-19 08:31:52,529 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 21 [2022-11-19 08:31:52,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:52,529 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-11-19 08:31:52,530 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) [2022-11-19 08:31:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-11-19 08:31:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:31:52,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:52,531 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] [2022-11-19 08:31:52,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:31:52,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:52,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:52,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1997481984, now seen corresponding path program 1 times [2022-11-19 08:31:52,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:52,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128709934] [2022-11-19 08:31:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:52,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:52,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128709934] [2022-11-19 08:31:52,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128709934] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:52,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:52,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:31:52,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492085878] [2022-11-19 08:31:52,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:52,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:31:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:31:52,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:31:52,821 INFO L87 Difference]: Start difference. First operand 83 states and 107 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) [2022-11-19 08:31:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:52,917 INFO L93 Difference]: Finished difference Result 235 states and 304 transitions. [2022-11-19 08:31:52,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:31:52,917 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 [2022-11-19 08:31:52,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:52,919 INFO L225 Difference]: With dead ends: 235 [2022-11-19 08:31:52,920 INFO L226 Difference]: Without dead ends: 154 [2022-11-19 08:31:52,921 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 [2022-11-19 08:31:52,922 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 39 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:52,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 179 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:31:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-19 08:31:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2022-11-19 08:31:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 96 states have (on average 1.3333333333333333) internal successors, (128), 109 states have internal predecessors, (128), 24 states have call successors, (24), 20 states have call predecessors, (24), 20 states have return successors, (24), 19 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-19 08:31:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 176 transitions. [2022-11-19 08:31:52,947 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 176 transitions. Word has length 24 [2022-11-19 08:31:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:52,947 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 176 transitions. [2022-11-19 08:31:52,948 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) [2022-11-19 08:31:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 176 transitions. [2022-11-19 08:31:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 08:31:52,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:52,949 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] [2022-11-19 08:31:52,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:31:52,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:31:52,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:52,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1323236196, now seen corresponding path program 1 times [2022-11-19 08:31:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:52,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216225808] [2022-11-19 08:31:52,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:52,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:52,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:31:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:31:53,011 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:31:53,011 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:31:53,012 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:31:53,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:31:53,019 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 08:31:53,023 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:31:53,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:31:53 BoogieIcfgContainer [2022-11-19 08:31:53,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:31:53,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:31:53,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:31:53,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:31:53,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:51" (3/4) ... [2022-11-19 08:31:53,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 08:31:53,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:31:53,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:31:53,147 INFO L158 Benchmark]: Toolchain (without parser) took 2948.02ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 62.2MB in the beginning and 101.0MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:53,147 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:53,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.34ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 63.2MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:31:53,148 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 60.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:31:53,148 INFO L158 Benchmark]: Boogie Preprocessor took 24.18ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:31:53,148 INFO L158 Benchmark]: RCFGBuilder took 656.93ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 59.4MB in the beginning and 100.1MB in the end (delta: -40.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-11-19 08:31:53,149 INFO L158 Benchmark]: TraceAbstraction took 1586.08ms. Allocated memory is still 130.0MB. Free memory was 99.5MB in the beginning and 104.2MB in the end (delta: -4.7MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-19 08:31:53,149 INFO L158 Benchmark]: Witness Printer took 70.30ms. Allocated memory is still 130.0MB. Free memory was 104.2MB in the beginning and 101.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:31:53,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.34ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 63.2MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 94.4MB. Free memory was 63.2MB in the beginning and 60.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.18ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 59.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 656.93ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 59.4MB in the beginning and 100.1MB in the end (delta: -40.7MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1586.08ms. Allocated memory is still 130.0MB. Free memory was 99.5MB in the beginning and 104.2MB in the end (delta: -4.7MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. * Witness Printer took 70.30ms. Allocated memory is still 130.0MB. Free memory was 104.2MB in the beginning and 101.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L303] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L605] int methaneLevelCritical = 0; [L763] int pumpRunning = 0; [L604] int waterLevel = 1; [L764] int systemActive = 1; [L500] int cleanupTimeShifts = 4; [L578] int retValue_acc ; [L579] int tmp ; [L583] FCALL select_helpers() [L584] FCALL select_features() [L585] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L585] RET, EXPR valid_product() [L585] tmp = valid_product() [L587] COND TRUE \read(tmp) [L589] FCALL setup() [L590] CALL runTest() [L572] CALL test() [L695] int splverifierCounter ; [L696] int tmp ; [L697] int tmp___0 ; [L698] int tmp___1 ; [L699] int tmp___2 ; [L702] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L704] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L706] COND TRUE splverifierCounter < 4 [L712] tmp = __VERIFIER_nondet_int() [L714] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L716] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] COND TRUE waterLevel < 2 [L623] waterLevel = waterLevel + 1 [L716] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L722] tmp___0 = __VERIFIER_nondet_int() [L724] 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] [L732] tmp___2 = __VERIFIER_nondet_int() [L734] COND FALSE !(\read(tmp___2)) [L738] tmp___1 = __VERIFIER_nondet_int() [L740] COND TRUE \read(tmp___1) [L742] CALL stopSystem() [L918] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L925] systemActive = 0 [L742] RET stopSystem() [L749] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L777] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L785] CALL __utac_acc__Specification3_spec__1() [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L643] int retValue_acc ; [L646] retValue_acc = methaneLevelCritical [L647] return (retValue_acc); [L107] 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] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L113] CALL, EXPR getWaterLevel() [L675] int retValue_acc ; [L678] retValue_acc = waterLevel [L679] return (retValue_acc); [L113] RET, EXPR getWaterLevel() [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L117] CALL, EXPR isPumpRunning() [L851] int retValue_acc ; [L854] retValue_acc = pumpRunning [L855] return (retValue_acc); [L117] RET, EXPR isPumpRunning() [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) [L123] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 404 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 205 mSDtfsCounter, 131 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=141occurred in iteration=4, InterpolantAutomatonStates: 13, 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 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! [2022-11-19 08:31:53,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb7e5d4c-4cec-474e-963d-1c236439f4e6/bin/utaipan-I9t0OCRTmS/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