./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V --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 95fb667c50ce40c1d7afa8c63adccd31fb19279643632f3d92a2ca85ced3f32b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:11:05,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:11:05,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:11:05,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:11:05,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:11:05,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:11:05,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:11:05,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:11:05,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:11:05,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:11:05,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:11:05,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:11:05,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:11:05,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:11:05,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:11:05,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:11:05,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:11:05,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:11:05,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:11:05,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:11:05,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:11:05,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:11:05,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:11:05,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:11:05,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:11:05,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:11:05,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:11:05,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:11:05,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:11:05,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:11:05,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:11:05,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:11:05,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:11:05,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:11:05,803 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:11:05,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:11:05,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:11:05,804 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:11:05,804 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:11:05,805 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:11:05,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:11:05,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:11:05,855 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:11:05,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:11:05,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:11:05,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:11:05,863 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:11:05,863 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:11:05,863 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:11:05,863 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:11:05,864 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:11:05,864 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:11:05,865 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:11:05,865 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:11:05,865 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:11:05,865 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:11:05,865 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:11:05,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:11:05,866 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:11:05,866 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:11:05,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:11:05,867 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:11:05,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:11:05,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:11:05,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:11:05,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:11:05,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:11:05,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:11:05,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:11:05,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:11:05,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:11:05,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:11:05,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:11:05,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:11:05,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:11:05,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:11:05,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:11:05,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:11:05,872 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:11:05,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:11:05,872 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:11:05,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:11:05,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:11:05,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95fb667c50ce40c1d7afa8c63adccd31fb19279643632f3d92a2ca85ced3f32b [2021-11-23 03:11:06,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:11:06,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:11:06,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:11:06,131 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:11:06,132 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:11:06,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2021-11-23 03:11:06,195 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/data/d8aa327fb/d2b5db47bf874570bc8c9214c18c62a2/FLAG59becf5f0 [2021-11-23 03:11:06,781 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:11:06,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2021-11-23 03:11:06,802 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/data/d8aa327fb/d2b5db47bf874570bc8c9214c18c62a2/FLAG59becf5f0 [2021-11-23 03:11:07,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/data/d8aa327fb/d2b5db47bf874570bc8c9214c18c62a2 [2021-11-23 03:11:07,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:11:07,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:11:07,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:11:07,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:11:07,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:11:07,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f650879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07, skipping insertion in model container [2021-11-23 03:11:07,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:11:07,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:11:07,288 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_553808b3-0b72-4a9a-bc83-1acc634d8fe8/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c[3350,3363] [2021-11-23 03:11:07,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:11:07,388 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:11:07,405 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_553808b3-0b72-4a9a-bc83-1acc634d8fe8/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c[3350,3363] [2021-11-23 03:11:07,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:11:07,510 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:11:07,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07 WrapperNode [2021-11-23 03:11:07,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:11:07,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:11:07,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:11:07,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:11:07,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,587 INFO L137 Inliner]: procedures = 51, calls = 150, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 216 [2021-11-23 03:11:07,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:11:07,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:11:07,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:11:07,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:11:07,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:11:07,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:11:07,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:11:07,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:11:07,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (1/1) ... [2021-11-23 03:11:07,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:11:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:11:07,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:11:07,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:11:07,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:11:07,727 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-23 03:11:07,727 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-23 03:11:07,727 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 03:11:07,728 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 03:11:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 03:11:07,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 03:11:07,728 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-23 03:11:07,728 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-23 03:11:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-23 03:11:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-23 03:11:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:11:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-23 03:11:07,729 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-23 03:11:07,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:11:07,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:11:07,826 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:11:07,827 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:11:08,093 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:11:08,175 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:11:08,176 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 03:11:08,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:08 BoogieIcfgContainer [2021-11-23 03:11:08,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:11:08,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:11:08,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:11:08,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:11:08,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:07" (1/3) ... [2021-11-23 03:11:08,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f226dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:08, skipping insertion in model container [2021-11-23 03:11:08,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:07" (2/3) ... [2021-11-23 03:11:08,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f226dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:08, skipping insertion in model container [2021-11-23 03:11:08,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:08" (3/3) ... [2021-11-23 03:11:08,187 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2021-11-23 03:11:08,192 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:11:08,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:11:08,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:11:08,263 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:11:08,263 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:11:08,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-23 03:11:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 03:11:08,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:08,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:08,288 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:11:08,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:08,293 INFO L85 PathProgramCache]: Analyzing trace with hash 750502929, now seen corresponding path program 1 times [2021-11-23 03:11:08,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:08,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683207723] [2021-11-23 03:11:08,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:08,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:08,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:08,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683207723] [2021-11-23 03:11:08,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683207723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:08,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:08,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:11:08,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155164196] [2021-11-23 03:11:08,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:08,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:11:08,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:08,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:11:08,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:11:08,547 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:08,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:08,606 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2021-11-23 03:11:08,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:11:08,610 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 03:11:08,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:08,618 INFO L225 Difference]: With dead ends: 102 [2021-11-23 03:11:08,619 INFO L226 Difference]: Without dead ends: 47 [2021-11-23 03:11:08,622 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:11:08,626 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:08,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:11:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-23 03:11:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-11-23 03:11:08,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 37 states have internal predecessors, (42), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-23 03:11:08,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-11-23 03:11:08,682 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2021-11-23 03:11:08,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:08,682 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-11-23 03:11:08,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:08,683 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-11-23 03:11:08,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:11:08,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:08,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:08,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:11:08,685 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:11:08,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1587701068, now seen corresponding path program 1 times [2021-11-23 03:11:08,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:08,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684604013] [2021-11-23 03:11:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:08,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:08,789 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:08,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684604013] [2021-11-23 03:11:08,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684604013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:08,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:08,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:11:08,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958444978] [2021-11-23 03:11:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:08,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:11:08,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:08,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:11:08,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:11:08,799 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:08,860 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2021-11-23 03:11:08,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:11:08,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:11:08,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:08,863 INFO L225 Difference]: With dead ends: 66 [2021-11-23 03:11:08,865 INFO L226 Difference]: Without dead ends: 39 [2021-11-23 03:11:08,865 INFO L932 BasicCegarLoop]: 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 [2021-11-23 03:11:08,867 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:08,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 03:11:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-23 03:11:08,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-23 03:11:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-23 03:11:08,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-11-23 03:11:08,886 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 13 [2021-11-23 03:11:08,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:08,887 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-11-23 03:11:08,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-11-23 03:11:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 03:11:08,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:08,891 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:08,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:11:08,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:11:08,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:08,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1315120815, now seen corresponding path program 1 times [2021-11-23 03:11:08,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:08,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104065974] [2021-11-23 03:11:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:08,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:08,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:08,989 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:08,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104065974] [2021-11-23 03:11:08,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104065974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:08,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:08,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:11:08,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856062583] [2021-11-23 03:11:08,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:08,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:11:08,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:11:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:11:08,992 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:09,120 INFO L93 Difference]: Finished difference Result 119 states and 160 transitions. [2021-11-23 03:11:09,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:11:09,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 03:11:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:09,123 INFO L225 Difference]: With dead ends: 119 [2021-11-23 03:11:09,124 INFO L226 Difference]: Without dead ends: 82 [2021-11-23 03:11:09,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:11:09,126 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:09,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 114 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-23 03:11:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2021-11-23 03:11:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2021-11-23 03:11:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2021-11-23 03:11:09,160 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 16 [2021-11-23 03:11:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:09,160 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2021-11-23 03:11:09,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2021-11-23 03:11:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:11:09,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:09,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:09,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:11:09,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:11:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1058007212, now seen corresponding path program 1 times [2021-11-23 03:11:09,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:09,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970835512] [2021-11-23 03:11:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:09,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:09,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:09,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:09,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970835512] [2021-11-23 03:11:09,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970835512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:09,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:09,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:11:09,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692126694] [2021-11-23 03:11:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:09,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:11:09,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:11:09,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:11:09,302 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:09,447 INFO L93 Difference]: Finished difference Result 176 states and 234 transitions. [2021-11-23 03:11:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:11:09,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 03:11:09,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:09,450 INFO L225 Difference]: With dead ends: 176 [2021-11-23 03:11:09,450 INFO L226 Difference]: Without dead ends: 113 [2021-11-23 03:11:09,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:11:09,453 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:09,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 117 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:09,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-23 03:11:09,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2021-11-23 03:11:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 88 states have internal predecessors, (103), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-23 03:11:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2021-11-23 03:11:09,475 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 19 [2021-11-23 03:11:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:09,476 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2021-11-23 03:11:09,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:09,476 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2021-11-23 03:11:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 03:11:09,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:11:09,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:11:09,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:11:09,478 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:11:09,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:11:09,479 INFO L85 PathProgramCache]: Analyzing trace with hash -282185632, now seen corresponding path program 1 times [2021-11-23 03:11:09,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:11:09,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918327840] [2021-11-23 03:11:09,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:11:09,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:11:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:11:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:11:09,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:11:09,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918327840] [2021-11-23 03:11:09,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918327840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:11:09,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:11:09,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:11:09,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844727030] [2021-11-23 03:11:09,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:11:09,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:11:09,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:11:09,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:11:09,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:11:09,654 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-23 03:11:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:11:09,844 INFO L93 Difference]: Finished difference Result 164 states and 211 transitions. [2021-11-23 03:11:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:11:09,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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 22 [2021-11-23 03:11:09,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:11:09,847 INFO L225 Difference]: With dead ends: 164 [2021-11-23 03:11:09,847 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 03:11:09,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:11:09,860 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 102 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:11:09,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 127 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 03:11:09,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 03:11:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 03:11:09,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:11:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 03:11:09,868 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-23 03:11:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:11:09,868 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 03:11:09,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-11-23 03:11:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 03:11:09,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 03:11:09,873 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 03:11:09,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:11:09,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 03:11:10,676 INFO L861 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 813 820) the Hoare annotation is: true [2021-11-23 03:11:10,677 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 813 820) no Hoare annotation was computed. [2021-11-23 03:11:10,677 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 772 778) no Hoare annotation was computed. [2021-11-23 03:11:10,677 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 772 778) the Hoare annotation is: true [2021-11-23 03:11:10,677 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 228 239) the Hoare annotation is: true [2021-11-23 03:11:10,677 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 228 239) no Hoare annotation was computed. [2021-11-23 03:11:10,678 INFO L854 garLoopResultBuilder]: At program point L799(line 799) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:11:10,678 INFO L854 garLoopResultBuilder]: At program point L799-1(lines 780 804) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:11:10,678 INFO L854 garLoopResultBuilder]: At program point L193(line 193) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 03:11:10,678 INFO L854 garLoopResultBuilder]: At program point L759-1(lines 759 765) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:11:10,678 INFO L858 garLoopResultBuilder]: For program point L788(lines 788 796) no Hoare annotation was computed. [2021-11-23 03:11:10,679 INFO L854 garLoopResultBuilder]: At program point L784(lines 784 801) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:11:10,679 INFO L858 garLoopResultBuilder]: For program point L752-1(lines 751 770) no Hoare annotation was computed. [2021-11-23 03:11:10,679 INFO L854 garLoopResultBuilder]: At program point L794(line 794) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 03:11:10,679 INFO L854 garLoopResultBuilder]: At program point L790(line 790) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2021-11-23 03:11:10,679 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 748 771) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-23 03:11:10,680 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 748 771) no Hoare annotation was computed. [2021-11-23 03:11:10,680 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2021-11-23 03:11:10,680 INFO L858 garLoopResultBuilder]: For program point L295(lines 295 301) no Hoare annotation was computed. [2021-11-23 03:11:10,680 INFO L854 garLoopResultBuilder]: At program point L291(lines 291 304) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|) (= ~waterLevel~0 1))))) [2021-11-23 03:11:10,681 INFO L854 garLoopResultBuilder]: At program point L291-1(lines 283 307) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|) .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|) (= ~waterLevel~0 1))))) [2021-11-23 03:11:10,681 INFO L861 garLoopResultBuilder]: At program point L96(line 96) the Hoare annotation is: true [2021-11-23 03:11:10,681 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 90 119) no Hoare annotation was computed. [2021-11-23 03:11:10,681 INFO L858 garLoopResultBuilder]: For program point L96-1(line 96) no Hoare annotation was computed. [2021-11-23 03:11:10,681 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 90 119) the Hoare annotation is: true [2021-11-23 03:11:10,681 INFO L861 garLoopResultBuilder]: At program point L115(lines 90 119) the Hoare annotation is: true [2021-11-23 03:11:10,681 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-11-23 03:11:10,682 INFO L858 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2021-11-23 03:11:10,682 INFO L861 garLoopResultBuilder]: At program point L104-1(lines 104 108) the Hoare annotation is: true [2021-11-23 03:11:10,682 INFO L861 garLoopResultBuilder]: At program point L100-2(lines 100 114) the Hoare annotation is: true [2021-11-23 03:11:10,682 INFO L861 garLoopResultBuilder]: At program point L737(lines 676 741) the Hoare annotation is: true [2021-11-23 03:11:10,682 INFO L858 garLoopResultBuilder]: For program point L696(lines 696 702) no Hoare annotation was computed. [2021-11-23 03:11:10,682 INFO L858 garLoopResultBuilder]: For program point L696-1(lines 696 702) no Hoare annotation was computed. [2021-11-23 03:11:10,685 INFO L854 garLoopResultBuilder]: At program point L734(lines 685 735) the Hoare annotation is: false [2021-11-23 03:11:10,685 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-11-23 03:11:10,686 INFO L854 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: false [2021-11-23 03:11:10,687 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2021-11-23 03:11:10,687 INFO L854 garLoopResultBuilder]: At program point L722-2(lines 716 729) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-23 03:11:10,687 INFO L858 garLoopResultBuilder]: For program point L706(lines 706 712) no Hoare annotation was computed. [2021-11-23 03:11:10,687 INFO L858 garLoopResultBuilder]: For program point L706-1(lines 706 712) no Hoare annotation was computed. [2021-11-23 03:11:10,687 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 03:11:10,687 INFO L854 garLoopResultBuilder]: At program point L731(lines 686 733) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-23 03:11:10,688 INFO L854 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-23 03:11:10,688 INFO L858 garLoopResultBuilder]: For program point L881(lines 881 887) no Hoare annotation was computed. [2021-11-23 03:11:10,688 INFO L854 garLoopResultBuilder]: At program point L881-1(lines 881 887) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-23 03:11:10,688 INFO L854 garLoopResultBuilder]: At program point L175(lines 175 182) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-23 03:11:10,690 INFO L858 garLoopResultBuilder]: For program point L687(lines 686 733) no Hoare annotation was computed. [2021-11-23 03:11:10,690 INFO L861 garLoopResultBuilder]: At program point L175-2(lines 175 182) the Hoare annotation is: true [2021-11-23 03:11:10,690 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 729) no Hoare annotation was computed. [2021-11-23 03:11:10,691 INFO L854 garLoopResultBuilder]: At program point L708(line 708) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2021-11-23 03:11:10,691 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 216 227) no Hoare annotation was computed. [2021-11-23 03:11:10,691 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 216 227) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2021-11-23 03:11:10,694 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-23 03:11:10,697 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 03:11:10,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:11:10 BoogieIcfgContainer [2021-11-23 03:11:10,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 03:11:10,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 03:11:10,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 03:11:10,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 03:11:10,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:08" (3/4) ... [2021-11-23 03:11:10,742 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 03:11:10,747 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-23 03:11:10,747 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-23 03:11:10,747 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-23 03:11:10,747 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-23 03:11:10,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-23 03:11:10,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-23 03:11:10,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 67 nodes and edges [2021-11-23 03:11:10,769 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2021-11-23 03:11:10,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 03:11:10,771 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 03:11:10,771 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 03:11:10,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:11:10,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 03:11:10,809 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-23 03:11:10,809 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2021-11-23 03:11:10,810 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2021-11-23 03:11:10,811 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2021-11-23 03:11:10,812 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((2 <= tmp && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2021-11-23 03:11:10,812 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((2 <= tmp && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2021-11-23 03:11:10,813 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2021-11-23 03:11:10,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 03:11:10,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 03:11:10,858 INFO L158 Benchmark]: Toolchain (without parser) took 3792.52ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 67.0MB in the beginning and 72.1MB in the end (delta: -5.1MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,859 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:11:10,859 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.86ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 48.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.81ms. Allocated memory is still 96.5MB. Free memory was 48.7MB in the beginning and 46.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,860 INFO L158 Benchmark]: Boogie Preprocessor took 53.92ms. Allocated memory is still 96.5MB. Free memory was 46.3MB in the beginning and 44.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,860 INFO L158 Benchmark]: RCFGBuilder took 534.76ms. Allocated memory is still 96.5MB. Free memory was 44.9MB in the beginning and 63.2MB in the end (delta: -18.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,861 INFO L158 Benchmark]: TraceAbstraction took 2557.46ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.5MB in the beginning and 77.6MB in the end (delta: -15.1MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,861 INFO L158 Benchmark]: Witness Printer took 118.96ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 72.1MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 03:11:10,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 79.7MB. Free memory is still 46.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.86ms. Allocated memory is still 96.5MB. Free memory was 66.9MB in the beginning and 48.7MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.81ms. Allocated memory is still 96.5MB. Free memory was 48.7MB in the beginning and 46.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.92ms. Allocated memory is still 96.5MB. Free memory was 46.3MB in the beginning and 44.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.76ms. Allocated memory is still 96.5MB. Free memory was 44.9MB in the beginning and 63.2MB in the end (delta: -18.3MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2557.46ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 62.5MB in the beginning and 77.6MB in the end (delta: -15.1MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Witness Printer took 118.96ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 72.1MB in the end (delta: 5.5MB). 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 - PositiveResult [Line: 193]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 469 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 317 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 244 IncrementalHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 217 mSDtfsCounter, 244 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 204 PreInvPairs, 247 NumberOfFragments, 481 HoareAnnotationTreeSize, 204 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FomulaSimplificationsInter, 1024 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((tmp == systemActive && pumpRunning == 0) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 784]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((2 <= tmp && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 748]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 283]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((2 <= tmp && pumpRunning == 0) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) - InvariantResult [Line: 676]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 759]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 685]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 03:11:10,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_553808b3-0b72-4a9a-bc83-1acc634d8fe8/bin/utaipan-EQgc7hIp5V/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 Result: TRUE